100

Pregunta 1 de 159

1

This MDADM output:

Which two aspects can be determined from this output?

Selecciona una o más de las siguientes respuestas posibles:

A device failed and has been removed from this RAID set.
It is no longer possible to write to this RAID set.
Read and write performance is no longer optimal on this RAID set.
This RAID set was built without a spare device.
Only Write performance is no longer optimal on this RAID set.

Explicación

Pregunta 2 de 159

1

Examine the command on its output:

[root@FAROUT ~] # modprobe -v nfs
insmod /lib/modules/2.6.39-100.0.12.e16uek.x86_64/kernel/fs/nfs_common/nfs_acl.ko
insmod /lob/modules/2.6.39-100.0.12.e16uek.x86_64/kernel/net/sunrpc/auth_gss/auth_rpcgss.ko
insmod /lib/modules/2.6.39-100.0.12.e16uek.x86_64/kernel/fs/fscache/fscache/ko
insmod /lib/modules/2.6.39-100.0.12.e16uek.x86_64/kernel/fs/locked.ko
insmod /lib/modules/2.6.39-100.0.12.e16uek.x86_64/kernel/fs/nfs/nfs.ko

Which two statements are true about the modprobe command?

Selecciona una o más de las siguientes respuestas posibles:

It will load the nfs module if all the modules upon which it depends have been loaded.
It displays the dependency resolution for the nfs module and loads all the modules upon which nfs depends before loading the nfs module.
It verifies that the nfs module and all other modules that depend on the nfs module are installed.
It displays the dependency resolution that would occur if the nfs module were to be loaded using modprobe nfs.
It only loads the nfs module if all the modules upon which it depends have not been loaded yet.

Explicación

Pregunta 3 de 159

1

What is the main advantage of the Oracle Unbreakable Enterprise Kernel compared with the Red Hat compatible kernel?

Selecciona una de las siguientes respuestas posibles:

It is more secure and, therefore, more difficult to hack.
It has a lower Mean Time Between Failures.
It provides higher availability for applications by reducing Mean Time to Recovery.
It scales better for more CPUS, memory, and Infiniband network connections.

Explicación

Pregunta 4 de 159

1

Examine this output:

# df -t nfs
FilesystemSizeUsedAvailUse%Mounted on
o16:export30G21G7.6G74%/mnt
# 1s -1 /mnt/nfs.sh
-rwxr-mr-x. 1 root root 22 May 8 16:37 /mnt/nfs.sh
# file /mnt/nfs.sh
/mnt/nfs.sh: Bourne-Again shell script text executables
# /mnt/nfs.sh
bash: /mnt/nfs.sh: Permission denied

What is the reason for the error?

Selecciona una de las siguientes respuestas posibles:

The file system was exported on host o16 using the ROOT_SQUASH option.
The /export filesystem was mounted with the NOEXEC option on host o16.
The filesystem mounted on /mnt was mounted with the NOEXEC option.
The filesystem was exported on host o16 by using the NO_ROOT_SQUASH option.

Explicación

Pregunta 5 de 159

1

Which two software packages are prerequisites for enabling the configuration and use of a Network information Service (Nis) client?

Selecciona una o más de las siguientes respuestas posibles:

nis-tools
slapi-nis
ypbind
nisserv
nisbind
yp-tools

Explicación

Pregunta 6 de 159

1

Which two Statements are true concerning the configuration and use of cron and anacron?

Selecciona una o más de las siguientes respuestas posibles:

Anacron jobs are used to make sure cron jobs run if the system had been down when they were meant to run.
All crontabs are held in the /etc/cron.d directory.
Cron jobs may run as frequently as once a minute.
Anacron jobs may run as frequently as once a minute.
The crond daemon looks for jobs only in /etc/crontab.

Explicación

Pregunta 7 de 159

1

You recently updated the strace package to the latest version as shown:

What is the outcome of running this command?

Selecciona una de las siguientes respuestas posibles:

It downgrades the strace package to version 4.5.19-1.6.e16.
It downgrades strace package to version 4.5.19-1.11.e16_3.2.
It fails with an error because you cannot downgrade a package using the yum command.
It fails with an error because there are multiple versions available to which Yum can downgrade the strace package.
It will prompt you to select a version of the strace package that you want to downgrade.

Explicación

Pregunta 8 de 159

1

Which statement is true concerning the /etc/sysconfig directory and its files and subdirectories?

Selecciona una de las siguientes respuestas posibles:

The contents are always the same for a specific version of the Oracle Linux Kernel.
The file /etc/sysconfig/init is used by upstart to control the attributes of the tty devices that get started.
The directory /etc/sysconfig/network-scripts contains files that must not be modified while the network is up.
The files only contain default values for certain daemon processes.

Explicación

Pregunta 9 de 159

1

Examine the routing table:

Which three statements are true concerning the routing of IP packets?

Selecciona una o más de las siguientes respuestas posibles:

Traffic to 192.168.180.180 is routed via eth1.
Traffic to 192.168.180.240 is routed via eth1.
Traffic to 192.168.0.42 is routed via eth2.
Traffic to 192.168.42.42 is routed via eth2.
Traffic to 192.168.42.42 is routed via eth0.
Traffic to 192.168.180.180 is routed via eth0.

Explicación

Pregunta 10 de 159

1

You have a single network adapter called eth0.

DEVICE = eth0
BOOTPROTO=DHCP
HWADR=BC:305B:C5:63;F1
NM_CONTROLLED=no
ONBOOT=YES
TYPE=Ethernet
PEERDNS=no
UUID=C9dba2e8-9faf-4b77-bbe2-92dd81dda1f9

Which two statements are true concerning eth0 based on this configuration?

Selecciona una o más de las siguientes respuestas posibles:

DHCP is used to obtain a lease on an IP address.
The dhclient command may only be used to obtain a lease at boot time.
dhclient does not override the contents of /etc/resolv.conf.
DNS is not used to resolve host names for this adapter.
dhclient overrides the contents of /etc/resolv.conf.

Explicación

Pregunta 11 de 159

1

Which four statements are true about the proc and sysfs filesystem?

Selecciona una o más de las siguientes respuestas posibles:

The sysfs filesystem contains information about processes.
The proc filesystem contains information about CPUs.
The proc filesystem contains information about memory.
The sysfs filesystem contains information about CPUs.
The sysfs filesystem contains information about memory.
The proc filesystem contains information about the installer parameters.

Explicación

Pregunta 12 de 159

1

You want sendmail to deliver mail for these users:

John.smith@acme.comto mailbox jsmith1
John.smith@foo.comto mailbox jsmith2
John.smith@bar.comto mailbox jsmith3

In which sendmail configuration database can this requirement be defined?

Selecciona una de las siguientes respuestas posibles:

/etc/aliases
/etc/mail/userdb
/etc/mail/virtusertable
/etc/mail/domaintable
/etc/mail/genericstable

Explicación

Pregunta 13 de 159

1

What is the purpose of Setting AUTOINSTALL to YES /etc/uptrack.conf?

Selecciona una de las siguientes respuestas posibles:

To install Ksplice kernel updates during the reboot of a system
To install updates to the Ksplice software Itself during a system reboot
To enable the uptrack cron job to install Ksplice kernel updates whenever they become available
To enable Ksplice to automatically install the kernel rpm whenever new Ksplice kernel updates become available
To enable Ksplice to install Ksplice kernel updates and new kernel RPMS whenever they become available

Explicación

Pregunta 14 de 159

1

Which two conditions should be met in order to successfully configure an openssh client on Oracle Linux?

Selecciona una o más de las siguientes respuestas posibles:

The openssh-server package must not be installed.
The openssh package must be installed.
The sshd daemon must not be started.
The openssh-client package must be installed.
The ssh-agent must be started.
ssh keys must be generated by any user using the ssh client.

Explicación

Pregunta 15 de 159

1

Which three settings are required to configure an openLdap to use directory service provided by Ldap.example.com?

Selecciona una o más de las siguientes respuestas posibles:

Set the LDAP Search Base DN and the LDAP server address and post in /etc/openldap/ldap.conf to: dc=example, dc = com ldap://ldap.example.com:389
Set LDAP Search Base DN and the LDAP server address and port in /etc/ldap.conf to: dc=example, dc=com ldap://ldap.example.com:389
Ensure that /etc/nsswitch.conf correctly references authentication priorities: passed: files ldap shadow: files ldap group: files ldap
Ensure that the LDAP server name can be resolved.
Ensure that DNS is used to resolve the LDAP server name.

Explicación

Pregunta 16 de 159

1

Refer to the Exhibit.

[root@server1 ~ # 1s -1 /usr/bin/passwd
-r-x--x--x 1 root root 21200 oct 7 21:01 /usr/bin/passwd
[root@server1 ~] # 1s -1 /etc/shadow
-r - - - - - - - - 1 root root 1818 Mar 7 10:31 /etc/shadow]
[root@server1 ~]#

A user smith is on your system complained that he is not able to change his password. As the administrator, you long-listed the passwd command and the /etc/shadow file.

View the Exhibit that shows the output.

What must you do to enable this user to change his password?

Selecciona una de las siguientes respuestas posibles:

Set SGID on /usr/bin/passwd.
Set SUID on /usr/bin/passwd.
Set sticky bit on /usr/bin/passwd.
Set read and write permission for others on /etc/shadow.
Set permission on /etc/shadow to 600.

Explicación

Pregunta 17 de 159

1

What happens if you reboot a Ksplice Uptrack-enabled system when the following conditions exist?

1. The Internet is unreachable due to a failing router.
2. The INSTALL_ON_REBOOT property is set to YES in /etc/uptrack/uptrack.conf.

Selecciona una de las siguientes respuestas posibles:

The Ksplice updates are applied early in the boot sequence despite the fact that the Internet is unreachable.
The Ksplice updates are not applied during the boot sequence, but they will be applied as soon as the Internet becomes reachable again.
The updates are not applied during the boot sequence and will not be applied after the Internet has become reachable again.
The system waits in the boot sequence for the internet to become reachable again.
The system boots to single-user mode.

Explicación

Pregunta 18 de 159

1

Which two statements are true about administering the use of the Sudo command in Oracle Linux?

Selecciona una o más de las siguientes respuestas posibles:

visudo will never save the /etc/sudoers file if there are syntax errors in the file after editing.
visudo prompts for an action if there are syntax errors in the /etc/sudoers file after editing.
Using vi to edit /etc/sudoers opens the file read only.
Multiple administrators may edit the /etc/sudoers file simultaneously using visudo but only one may save the edited result.
Multiple administrators may edit the /etc/sudoers file simultaneously using vi but only one may save the edited result.

Explicación

Pregunta 19 de 159

1

Which three statements are about the use of these files and directories by UPSTART?

Selecciona una o más de las siguientes respuestas posibles:

/etc/rc.d/rc is executed each time the /sbin/init command us used, to change services appropriately for the target run level.
/etc/rc.d/rc.local is executed at boot time, before the run level processing takes place.
/etc/rc.d/rc is executed at boot time, to start the appropriate services for the run level defined in /etc/initab.
/etc/rc.d/rc.sysinit is executed once at boot time, regardless of which run level is set.
/etc/rc.d/rc.sysint is executed each time the /sbin/init command is used to change the run level.
/etc/rc.d/rc3.d contains links to scripts in /etc/init.d.
/etc/rc.d/rc is executed after /etc/rc.d/rc.local.

Explicación

Pregunta 20 de 159

1

Examine these details from the sysctl.conf file and from the proc file system:

[root@FAROUT fs]# grep aio-max-nr /etc/sysctl.conf
# oracle-rdbms-server-11gR2-preinstall setting for fs.aio-mx-nr is 1048576
fs.aio-max-nr = 1048576
[root@FAROUT fs] # cat /proc/sys/fs/aio-max-nr
1048576
[root@FAROUT fs] # rpm -q libaio
Libaio-0.0.107-10.e16.x86_64
Libaio-0.3.107-10.e76.i686

Which statement is true about the setting created by oracle-rdbms-server-11gR2-preinstall?

Selecciona una de las siguientes respuestas posibles:

It allows a process to request an I/O without waiting for reply.
It allows two or more processes to request I/O simultaneously while running on different CPUs.
It allows a process to request a single I/O without awaiting for a reply. However, if a second I/O is requested, then the process must wait.
It allows two or more processes to request I/Os and then to both be notified when both of them complete.

Explicación

Pregunta 21 de 159

1

You use the chkconfig command to administer one of the services on your Oracle Linux system:

[root@FAROUT ~]# chkconfig vncserver off
[root@FAROUT ~] #

No changes have been made to the init script for the service.
Which two statements are true regarding the effects of Issuing this command?

Selecciona una o más de las siguientes respuestas posibles:

The vncserver service is shut down.
The vncserver service configuration is disabled only for those run levels for which it is currently enabled.
The vncserver service configuration is disabled for run levels 2, 3, 4 and 5.
The vncserver service remains in the same state it was in before the command was issued.
The vncserver service configuration is disabled for run levels 3 and 5 only.

Explicación

Pregunta 22 de 159

1

Examine the commands used by root to create the chrooted environments in the /jail directory:

# mkdir /jail/bin/jail/lib64
# cp /bin/bash/jail/bin
linux-vdso.so.1 => (0x00007fff68dff000)
libtinfo.so.5 => /lib64/libtinfo.so.5 (0x00000033e00000)
lid1.so.2 => /lib64/libc.so.6 (0x00000033e1600000)
/lib64/id-linix-86-64.so.2 (0x00000033e0e00000)
# cp /lib64/libtinfo.so.5/jail/lib64
# cp /lib64/libd1.so.6 /jail/lib64
# cp /lib64/libc.so.6 /jail/lib64
# cp /lib64/id-linux-x86-64.so.2 /jail/lib64

The user root then issues this command:
# chroot /jail

What is the output from the cd, pwd, and ls commands?

Selecciona una de las siguientes respuestas posibles:

bash-4.1# cd
bash-4.1# pwd
/root
bash-4.1# 1s
bash" 1s: command not found
bash-4.1# cd
bash: cd: /root: No such file or directory
bash-4.1# pwd
/
bash-4.1 # 1s bash: 1s: command not found
bash-4.1# cd
bash: cd: command not found
bash: pwd: command not found
bash-4.1# 1s
bash: 1s; # cd
bash: cd: /root: unable to access chrooted file or directory /root bash-4.1# pwd
/
bash-4.1 # 1s bin lib64
bash-4.1# cd
bash: cd: /root: No such file or directory
bash-4.1# pwd
/
bash-4.1# 1s bin
lib64

Explicación

Pregunta 23 de 159

1

Examine the partition table:

Disk /dev/sdd: 107 MB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Number StartEndSizeTypeFileSystemFlags
11049KB79.7MB78.6MBPrimary

Which program cannot be used to add another partition on this device?

Selecciona una de las siguientes respuestas posibles:

fdisk
cfdisk
parted
kpartx

Explicación

Pregunta 24 de 159

1

What is the purpose of setting ONPARENT = no in an Interface configuration file located in /etc/sysconfig/network-scripts?

Selecciona una de las siguientes respuestas posibles:

To prevent a network interface from being brought up during system startup
To prevent a slave network interface from being brought up during system startup
To prevent an alias network interface from being brought up during system startup
To prevent a master network interface from being brought up during system startup

Explicación

Pregunta 25 de 159

1

You must remove the user harhest from your Oracle Linux system because the person has left the company:

User harhest has numerous files, directories, and a crontab.
You issue:

Userdel r harhest

Which three outcomes result from the execution of this command?

Selecciona una o más de las siguientes respuestas posibles:

Files in the harhest home directory are removed.
The home directory of harhest is removed.
Files owned by narhest in any directory are removed.
All directories owned by harhest are removed.
The /var/spool/mail/harhest mailbox is removed.
crontab /var/spool/cron/harhest is removed.

Explicación

Pregunta 26 de 159

1

Match the rpm options with their functions:

1. - I a. replaces any older versions of package with the new package
2. - U b. upgrades packages, but only if an earlier version exists on your system
3. - F c. Uninstall the specified package
4. - e d. installs a new package

Selecciona una de las siguientes respuestas posibles:

1-d, 2-a, 3-b, 4-c
1-d, 2-b, 3-a, 4-c
1-a, 2-c, 3-b, 4-d
1-a, 2-b, 3-c, 4-d

Explicación

Pregunta 27 de 159

1

Examine the line from /etc/rsyslog.conf:

Mail.*-/var/log/maillog

Which statement correctly describes this rule?

Selecciona una de las siguientes respuestas posibles:

The rule name prefix of "-" is tolerated for syslog and syslog.sys compatibility with no impact or rsyslog behavior regardless of the global directive settings.
The file name prefix of "-" is a way of disabling mail log messages under certain conditions to /var/log/maillog.
The filename prefix of "-" is a performance enhancement. It stops file syncing on every message. The log certain will be the same whether a minus prefix is used or not.
The file name prefix of "-" forces file syncing after every message is logged to ensure each message is written to disk force before attempting to write a subsequent message to the same file.

Explicación

Pregunta 28 de 159

1

Which two statements are true concerning a GUID Partition Table (GPT)?

Selecciona una o más de las siguientes respuestas posibles:

It supports named disk partitions.
It supports primary and extended partitions.
It supports disks greater than two terabytes.
It cannot be used on the system disk.
It supports only up to 16 partitions.

Explicación

Pregunta 29 de 159

1

Examine the extract of the /etc/nologin file and the /etc/pam.d/login file on server1:

[root@server1 ~] # cat /etc/nologin
bob
smith
[root@server1 ~] # cat /etc/pam.d/login
accountrequiredpam_nologin.so
accountincludesystem-auth

Which statement is true about users?

Selecciona una de las siguientes respuestas posibles:

Only the root user can log in to the system.
Only users root bob and smith would be unable to log in to the system.
All users, including the root user, would be permitted to log in to the system.
All users, including the root user, would be unable to log in to the system.
Only users bob and smith would be unable to log in to the system.

Explicación

Pregunta 30 de 159

1

Which two statements correctly describe the type of Information and the behavior of files in the proc filesystem on Oracle Linux 6?

Selecciona una o más de las siguientes respuestas posibles:

It is not possible to write to any file in the proc filesystem.
The /proc/cmdline file contains the parameters passed to the kernel.
Each process has a directory named for the process number in the proc filesystem.
The proc filesystem contains the same hardware information that is contained in the sys filesystem for backward compatibility.
Each process thread has a directory named for the process thread number in the proc files/stem.

Explicación

Pregunta 31 de 159

1

Which four statements are true concerning the various stages of GRUB bootloader in Oracle Linux?

Selecciona una o más de las siguientes respuestas posibles:

GRUB stage1 must always load stage1_5.
GRUB stage1_5 is used to process the /boot/grub/grub.conf file.
GRUB stage1_5 loads GRUB stage2.
GRUB stage1 may load GRUB stage2 directly.
GRUB stage1 provides support for several different filesystems, enabling stage1 to load stage1_5.
GRUB stage1_5 provides support for several different filesystems, enabling stage1_5 to load stage2.
GRUB stage2 is used to process the /boot/grub/grub.conf file.

Explicación

Pregunta 32 de 159

1

Examine the commands and output when trying to start OSWatcher Black Box.

Identify two recommended solutions to this problem.

Selecciona una o más de las siguientes respuestas posibles:

Edit the startOSWbb.sh script to specify your proffered shell, ensuring that it is started in POSIX compliance mode.
Install ksh on the system, if not currently installed.
Create a Symbolic link /usr/bin/ksh that points to /bin/bash.
Ensure that ksh is accessible with the path /usr/bin/ksh. Create a symbolic link if necessary.
Create a shell alias called /usr/bin/ksh that expands to /bin/bash.

Explicación

Pregunta 33 de 159

1

Identify two true statements about the nice command.

Selecciona una o más de las siguientes respuestas posibles:

It may the used to raise the priority of existing processes.
It may be used to set the initial priority of a process.
A higher nice value makes a process run at a lower priority.
By default, a normal user can make a process run at a higher priority.
It may be used to lower the priority of existing processes.

Explicación

Pregunta 34 de 159

1

Examine the output of a bonded interface configuration from which one network cable has been unplugged:

# cat /proc.net/bonding/bond0
Ethernet Channel Bonding Driver: v3.6.0 (September 26, 2009)
Bonding Mode: fault-tolerance (active-backup)
Primary Slave: None
Currently Active Slave: eth2
MII Status: up
MII poling interval (ms): 100
Up Delay (ms): 0
Down Delay (ms): 0
Slave Interface: eth1
MII status: down
Link Failure Count: 1
Permanent HW addr: 00:0c:29:7b:3c:71
Slave Queue ID: 0
Slave Interface: eth2
MII Status: up
Link Failure Count: 0
Permanent HW addr: 00:0c:29:7b:3s:7b

Which statement is true when you plug in the eth1 network cable?

Selecciona una de las siguientes respuestas posibles:

The status of the slave interface eth1 changes to up and is promoted to the active slave and eth2 becomes the backup slave.
The status of the slave interface eth1 changes to up and becomes a second active slave.
The status of the slave interface eth1 changes to up but must be manually assigned the active or backup slave role.
The status of the slave interface eth1 changes to up and becomes the backup slave.

Explicación

Pregunta 35 de 159

1

Which three statements are true about the shared directories defined in the /etc/exports file?

Selecciona una o más de las siguientes respuestas posibles:

By default, a directory is shared with no root squashed.
By default, a directory is shared read write.
By default, a directory is shared with root squashed.
By default, a directory is shared read only.
By default, a directory is shared sync.

Explicación

Pregunta 36 de 159

1

Which three statements are true when using the Anaconda Installer to install Oracle Linux?

Selecciona una o más de las siguientes respuestas posibles:

Unattended installation is only possible if installing the Unbreakable Enterprise kernel.
The installation may be done from an NFS-mounted Image.
Unattended installation is only possible if installing the Red Hat-compatible kernel.
The installation may be done from a USB device.
The installation may be done in text or graphical mode.

Explicación

Pregunta 37 de 159

1

You use the host command to find out about host name WAYOUT:

Which two statements are true?

Selecciona una o más de las siguientes respuestas posibles:

Example.com is an authoritative name server.
Dns1.example.com is an authoritative name server.
Dns2.example.com is a Cache-only name server.
Dns2.example.com is an authoritative name sever.
Dns1.example.com is a cache-only name server.

Explicación

Pregunta 38 de 159

1

Which three statements are true about the configuration of OpenLdap secure encrypted connections?

Selecciona una o más de las siguientes respuestas posibles:

TLS and ldaps should not both be selected.
To enable idaps, you must download the Certifying Authority (CA) Certificate.
To enable TLS, you must download the Certifying Authority (CA) Certificate.
The certificate is needed to verify ownership of the secret key used for encryption.
There is a command-line alternative to the Authentication Configuration Tool to enable the encrypted LDAP communication.

Explicación

Pregunta 39 de 159

1

Which two actions should be completed when the firstboot utility runs under runlevel 5 in Oracle Linux?

Selecciona una o más de las siguientes respuestas posibles:

Agreeing to the license agreement
Registering for software updated
Creating a nonadministrative user
setting the current date and time to be synchronized with an NTP server
Configuring the dtrace facility

Explicación

Pregunta 40 de 159

1

Which two statements are true about the Unbreakable Linux Network (ULN)?

Selecciona una o más de las siguientes respuestas posibles:

It is freely available to all Oracle Linux customers.
It contains additional packages not found on the installation media.
It contains only binary RPM packages.
It contains both source and binary RPM packages.
It is the only location to download errata.
All Unbreakable Linux subscribers are allowed to deploy a local YUM repository.

Explicación

Pregunta 41 de 159

1

Examine the content of the mdstat pseudo file:

# cat /proc/msstat
personalities: [raid1] [raid0] [raid6] [raid5] [raid4]
md0 : active raid1 md2[1] md1[0]
207680blocks super 1.2 [2/2] [UU]
md2 : activeraid0 sdg[1] sdf1[0]
207872blocks super 1.2 512k chinks
Md1 :active raid0sde1[1] sdd1[0]
207872blocks super 1.2 512k chunks
Unused devices: <none>

Which two statements are true about the MD0 RAID set?

Selecciona una o más de las siguientes respuestas posibles:

MDO is a stripped mirror RAID set.
MDO is a mirrored stripped RAID set.
If MD1 fails, so will MDO.
If MD2 fails, MDO too fails.
If /dev/sdd1 and /dev/sdg1 fail, MDO fails.

Explicación

Pregunta 42 de 159

1

Examine these commands used to control UPSTART logging:

[root@FAROUT init] # initctl log-priority info
[root@FAROUT init] # initctl log-priority
Info
[root@FAROUT init]#

Which three statements are true about the logging done through these commands?

Selecciona una o más de las siguientes respuestas posibles:

UPSTART logs State Changes to /vat/log/messages.
UPSTART logs job goals to /var/log/massages.
UPSTART logs only informational messages about warnings and errors to /var/log/messages.
UPSTART logs only informational messages about warnings to /var/log/messages.
UPSTART logs event emissions to /var/log/messages.

Explicación

Pregunta 43 de 159

1

Which three statements are correct about NFSV4?

Selecciona una o más de las siguientes respuestas posibles:

It relies on the LOCKD and RPC.STATD daemons to perform file locking.
It uses a single port (2049) for all client/server communications.
The UID and GID for a particular user must be the same on both client and server to avoid file ownership problems.
It has support for filesystem quotas.
RPC.IDMAPD is used to map a UID to its username and a GID to its group name and vice versa.

Explicación

Pregunta 44 de 159

1

Which three statements are true about rpm package dependencies?

Selecciona una o más de las siguientes respuestas posibles:

The RPM command can detect only direct package dependencies.
The RPM command can detect both direct and indirect package dependencies.
The YUM command can detect and resolve direct and indirect package dependencies.
The YUM command can detect and resolve indirect package dependencies only within the same repository.
The YUM command can only detect and resolve direct package dependencies.
A source RPM can have a dependency on a binary RPM.

Explicación

Pregunta 45 de 159

1

Examine the channel specification in the /etc/yum.repos.d/public-yum-016.repo file:

# head -6 /etc/yum.repos.d/public-yum-016.repo
[016_latest]
Name=Oracle Linux $releasever Latest ($basearch)
Baseurl=http://public-yum.oracle.com/repo/oracleLinux/OL6/latest/$basearch/
Gpgkey=http://public-yum.oracle.com/RPM-CPG-KEY-oracle-o16
Gpgcheck=1
Enabled=0

What is the effect of the enabled=0 setting?

Selecciona una de las siguientes respuestas posibles:

This channel is disabled and cannot be used by YUM at all.
This channel will not be used by YUM when searching for packages.
By default, YUM will not use this channel but this can be overridden on the command line.
This channel will not be used by YUM when it searches for packages, but YUM will check if updates exist for packages already installed from this channel.

Explicación

Pregunta 46 de 159

1

Which three statements correctly describes the purpose of and administration of kernel boot parameters in Oracle Linux?

Selecciona una o más de las siguientes respuestas posibles:

Kernel boot parameters may be specified in /boot/grub/grub/conf.
Kernel boot parameters used to boot the running system may be examined after boot by Viewing /boot/grub/grub/conf.
Kernel boot parameters used to boot the running system may be examined after boot by viewing /proc/cmdline.
Additional kernel boot parameters may be specified in an administrator-specified parameter file that is read by grub stage.
Additional kernel boot parameters may be specified from the grub command line.
Additional kernel boot parameters may be specified in an administrator-specified parameters that is read by GRUB stage1_5.

Explicación

Pregunta 47 de 159

1

Which three options are available during the Anaconda installer disk partitioning setup stage for a machine with only one hard disk device?

Selecciona una o más de las siguientes respuestas posibles:

Manual resizing of existing partitions on only a single device
Removal of all empty partitions only, leaving any Linux or non-Linux partitions unchanged
Replacing of existing Linux partitions only and leaving any other partitions unchanged
Replacing of existing non-Linux partitions only, and leaving any Linux partitions unchanged
Manual resizing of existing partitions on all selected devices
Removal of all existing partitions and creating new partitions to suit the install

Explicación

Pregunta 48 de 159

1

Which two steps should be performed to permit using SSH, SCP, or SFTP commands by the ORACLE account on the host FAROUT to the oracle account on the host WAYOUT without supplying a password?

Selecciona una o más de las siguientes respuestas posibles:

The oracle account user on host FAROUT must issue an ssh-keygen command to generate public and private key files in the ~ oracle/.ssh directory FAROUT.
The oracle account user on the host WAYOUT must issue an ssh-keygen command to generate public and private key files in the ~/oracle.ssh directory on WAYOUT.
The Oracle account user on host FAROUT must add the contents of ~/oracle/.ssh/id_dsa.pub or ~/oracle/.ssh/is_rsa.pub file to the ~/oracle/.ssh/authorized_keys file on host WAYOUT.
The Oracle account user on host WAYOUT must add the contents of ~/oracle/.ddh/id_dsa or ~/oracle/.ssh/id_rsa.pub file to the ~/oracle/.ssh/authorized_keys file on host FAROUT.
The oracle account user on host WAYOUT must set the permissions on the ~/oracle/.ssh/authorized_keys file to 644.
The Oracle account user on host FAROUT must set the permissions in ~/oracle/.ssh/authorized_keys file 644.

Explicación

Pregunta 49 de 159

1

Your Oracle Linux server has a network interface eth0 but the ifcfg-eth0 file is missing from the /etc/sysconfig/network-scripts directly.
To set the IP address for the interface, you run this command as root:

[root@station1]# ifconfig eth0 192.168.0.1 up

What is the effect of the command?

Selecciona una de las siguientes respuestas posibles:

The IP address 192.168.0.1 is not assigned to eth0 because the netmask is not specified.
The IP address 192.168.0.1 is assigned to eth0, but the interface is not activated until the network service is reloaded.
The IP address 192.168.0.1 is assigned to eth0, but the interface is not activated until the network service is restarted.
The IP address 192.168.0.1 is assigned to eth0 with the default netmask for that address, and the interface is activated immediately.

Explicación

Pregunta 50 de 159

1

Examine this output:

$ ftp o16.example.com
Connected to o16.example.com (192.168.40.131)
220 (vsFTpd 2.2.2)
Name (o16.example.com:oracle):

A carriage return is now entered on the keyboard and the result is shown:

$ 30 permission denied.
Login failed.
ftp>

Why is the oracle user denied access to the FTP server on the 016.example.com host?

Selecciona una de las siguientes respuestas posibles:

The Oracle user is listed in /etc/vsftpd/ftpusers.
The oracle user is listed in /etc/vsftpd/user_list and the USERLIST_ENABLE setting is set to YES in /etc/vsftpd/vsftpd.conf.
The Oracle user is listed in /etc/vsftpd/user_list and USERLIST_ENABLE setting is set to NO in /etc/vsftpd/vsftpd.conf.
The LOCAL_ENABLE setting is set to NO in /etc/vsftpd/vsftpd.conf.
The Oracle user does not exist on the o16.example.com host.

Explicación

Pregunta 51 de 159

1

Which two statements are true about the installation of certain components of asmlib in Oracle Linux 6?

Selecciona una o más de las siguientes respuestas posibles:

The asmlib kernel module is included in the Red Hat-compatible kernel.
The asmlib kernel module is included in the Unbreakable Enterprise Kernel (UEK).
The asmlib kernel module must be installed separately when using the Unbreakable Enterprise Kernel (UEK).
The asmlib oracleasm-support package is installed as part of the Red Hat-compatible kernel package.
The asmlib oracleasm-support package is included as part of the Unbreakable Enterprise Kernel (UEK) package.
The asmlib oracleasm-support rpm must be installed separately when using the Unbreakable Enterprise Kernel (UEK).

Explicación

Pregunta 52 de 159

1

Which three statements are true about administering user accounts and groups for an Oracle Linux server in preparation for installing the Oracle Database server?

Selecciona una o más de las siguientes respuestas posibles:

The Oracle software owner must be a Linux user called oracle.
The Oracle software owner must not be the root user.
The owner of the Oracle httpd daemon process must be the Linux user called nobody.
A Linux user who is a member of the OSDBA group may start an Oracle database instance.
The /etc/sudoers file must specify that the Oracle software owner be allowed to run commands as root.
The OINSTALL group owns the Oracle Inventory.

Explicación

Pregunta 53 de 159

1

Which four are among the many components included in the oracle Linux distribution?

Selecciona una o más de las siguientes respuestas posibles:

Apache Web Server
Documentation
X Windowing system
Oracle Database Server 11g
Red Hat compatible kernel
Oracle WebLogic Server 11g

Explicación

Pregunta 54 de 159

1

You are about to switch a Red Hat Enterprise Linux 6 (RHEL6) system from the Red Hat Network to the Unbreakable Linux Network (ULN).
Consider this output:

# rpm -qa rhn
rhnlib-2.5.22-12.e16.noarch
yum-rhn-plugin-0.9.1-36.e16.noarch
rhn-setup-1.0.0-73.e16.noarch
rhn-client-tools-1.0.0-73.e16.noarch
rhn-check-1.0.0-73.e16.noarch
rhnsd-4.9.3-2.e16.x86_64

Identify four minimum steps that you should perform to successfully switch this system from RHN to ULN.

Selecciona una o más de las siguientes respuestas posibles:

Create a ULN account if it doesn't exist already.
Ensure you have a valid Oracle Linux support agreement.
Install the uln_register.tgz package.
Install the uln_register.tgz and uln_register-gnome.tgz packages.
Run the uln_register command as the root user and answer the prompts.
Install the Unbreakable Enterprise kernel (UEK).
Run the yum update command.
Reboot your system.

Explicación

Pregunta 55 de 159

1

Which three statements are true about the bash shell script's capabilities and features?

Selecciona una o más de las siguientes respuestas posibles:

The s* shell variable holds the exit status of the last command executed in the foreground.
The | | operator ensures that a command is run only if the command preceding the | | operator fails.
If test "SMYVAR" = prod and if ["SMYVAR" *= prod ] are equivalent ways to test the value of the MYVAR variable in a shell script.
If the first line of the script begins with #!/bin/sh, then the sh shell program is unable to interpret the script.
The bash shell supports more than 10 command-line arguments.
The && operator ensures that a command is run regardless of the outcome of the command that preceded the && operator.

Explicación

Pregunta 56 de 159

1

Which three compression programs can tar use to natively filter an archive?

Selecciona una o más de las siguientes respuestas posibles:

Zip
Bzip2
Gzip
Xz
Cpio

Explicación

Pregunta 57 de 159

1

Examine this /etc/fstab entry:

Identify the actions you must perform to relocate this filesystem permanently to its new mount point?

Selecciona una de las siguientes respuestas posibles:

1, 2, 3, 4, 5, 6 and 7
1, 2, 3, 4, 5 and 6
1, 2, 5 and 6
1, 2, 5, 6 and 7 ^
1, 2 and 6

Explicación

Pregunta 58 de 159

1

During the setup of additional swap space on an ext2 filessystem, you encounter an error as shown below:

Which action must you perform to add additional swap space?

Selecciona una de las siguientes respuestas posibles:

Create a symbolic link /dev/swapfile that points to u01/swapfile.
Reinitialize /u01/swapfile by issuing mkswap L swapfile /u01/swapfile.
Re-create the swapfile on an ext3 or ext4 filesystem.
Change LABEL=swapfile to /u01/swapfile in the appropriate /etc/fstab entry.
None, because adding filesystem based swap space is not supported.

Explicación

Pregunta 59 de 159

1

Examine the command and output shown:

bash-4.1# 1s
1s: error while loading
shared libraries: libselinux.so.1: cannot open shared object file: No such file or directory

No files have been deleted from your system and you want to determine the cause of the error.
Which two commands or utilities can help the root user diagnose this problem?

Selecciona una o más de las siguientes respuestas posibles:

ldd
dmesg
grep libselinux.so.1 /var/log/dmesg
strace
grep libselinux.so.1 /var/log/message

Explicación

Pregunta 60 de 159

1

For which three types of installs does the Oracle database Pre-install rpm help by installing required software packages and setting system parameters?

Selecciona una o más de las siguientes respuestas posibles:

Oracle Database 11g Enterprise Edition single instance
Oracle WebLogic
Oracle Database Enterprise Edition Real Application Cluster
Oracle Enterprise Manager Cloud Control
Oracle Database 11g Standard Edition single instance

Explicación

Pregunta 61 de 159

1

Which three statements are true concerning the IPTABLES Oracle Linux firewall?

Selecciona una o más de las siguientes respuestas posibles:

The default rule table is filter.
iptables has two main components: the kernel component netfilter and the command-line utility ipchains.
Input, output, and forward are the rule tables associated with filter.
PREROUTING, OUTPUT, and POSTROUTING are the chains associated with nat.
The main rule chains are filter, nat, and mangle.
The main rule tables are filter, nat, and mangle.

Explicación

Pregunta 62 de 159

1

Which two statements are true about signal handling in Oracle Linux?

Selecciona una o más de las siguientes respuestas posibles:

The pkill command kills a process by name.
A process killed with the default signal always terminates gracefully if it: does not block the kill request.
The kill command sends a sigkill (signal 9) by default to the process being killed.
The kill command may send a termination signal to more than one process at a time.
All signals may be blocked by a process.

Explicación

Pregunta 63 de 159

1

Bash is invoked as an interactive login shell.
What is the order in which the bash configuration files are read, assuming that all the files exist in their correct location and are readable?

Selecciona una de las siguientes respuestas posibles:

/etc/profile, ~/ .profile
/etc/profile, ~/ .bash_profile
/etc/profile, ~/ .bash_profile, ~/ .bash_login, ~/ .profile
/etc/profile, ~/ .bash_profile, ~/ .profile, ~/ .bash_login

Explicación

Pregunta 64 de 159

1

Which type of nameserver is provided by the default bind configuration files on Oracle Linux?

Selecciona una de las siguientes respuestas posibles:

A primary name server
A secondary name server
Recursive caching-only nameserver
An authoritative name server
Slave name server

Explicación

Pregunta 65 de 159

1

Which three statements are true concerning the use of the grub menu in Oracle Linux?

Selecciona una o más de las siguientes respuestas posibles:

All changes made using the grub editor at boot time are saved by default to /boot/grub/grub, conf.
Additional parameters may be passed to the selected kernel.
The initrd directive may not be changed.
Existing kernel parameters may be changed.
Some of the GRUB command-line functions may be password protected.

Explicación

Pregunta 66 de 159

1

Consider the output shown:

#rpm -i sendmail-cf-8.14.4-8.e16.noarch.rpm
Error: Failed dependencies:
Sendmail = 7.14.4-8.e16 is needed by sendmail-cf-8.e16.noarch
# rpm -i sendmail-8.14.4-8.e16.x86_64.rpm
# rpm -i sendmail-cf-8.14.4-8.e16.noarch.rpm
# rpm -q sendmail sendmail-cf
Sendmail-8.14.4-8.e16.x86_64
Sendmail-cf-8.e16_64
Sendmail-cf-8.14.4-8.e16.noarch
# rpm -e sendmail

Which statement is true about the execution of the rpm -e sendmail command?

Selecciona una de las siguientes respuestas posibles:

It erases the sendmail package without errors.
It fails with an error because the package version is not supplied on the command line.
It fails with an error because the sendmail-cf package depends on the sendmail package.
It erases the sendmail package and raises an error because the sendmail package depends on the sendmail package.
It erases both the sendmail and sendmail-cf packages because the sendmail-cf package depends on the sendmail package.

Explicación

Pregunta 67 de 159

1

Which three statements are true about the User Private Group scheme in Oracle Linux?

Selecciona una o más de las siguientes respuestas posibles:

If a user jules is added with the useradd jules command, a group called jules_grp is also created
The umask for the jules user is 002 in /etc/bashrc
Users belonging to a group to which user jules also belongs, are automatically able to write to the private group belonging to the jules user.
If a user jules is added with the user add jules command, a group called jules is also added. but no other user may be a member of that group.
A directory owned by a group to which several users belong, and which has the setgid fa turned on, has shared write access to all members of the group.
The User private Group scheme is enabled by default in Oracle Linux.

Explicación

Pregunta 68 de 159

1

Which two actions are the required steps to prevent: non-root ssh access to the system?

Selecciona una o más de las siguientes respuestas posibles:

Ensuring that /etc/pam.d/sshd includes: account sufficient pam_nologin.so
Create the /etc/nologin/login.deny file containing a single line +all
Creating the /etc/nologin.allow file containing a single line root
Creating the /etc/nologin file
Ensuring that /etc/pam.d/sshd includes: account requiredpam_nologin.so

Explicación

Pregunta 69 de 159

1

Examine this MDAM output:

Which two aspects can be determined from this output?

Selecciona una o más de las siguientes respuestas posibles:

A RAID device failed and has been replaced with the hot spare.
A new RAID device was just added to replace a failed one.
Read and write performance is currently not optimal on this RAID set.
Only write performance is currently not optimal on this raid set.
An extra device was added to this RAID set to increase its size.

Explicación

Pregunta 70 de 159

1

Which three statements are true about the Oracle Linux Logical Volume Manager (LVM)?

Selecciona una o más de las siguientes respuestas posibles:

LVM supports simple, striped, mirrored, and RAID-5 Logical Volumes (LVs).
A Physical Volume (PV) can be created on a disk or a disk partition.
A Physical Volume (PV) can only be created on a disk partition.
A Physical Volume (PV) can be resized.
A Volume Group (VB) can be split into multiple Volume Groups.
An LVM snapshot is read-only.

Explicación

Pregunta 71 de 159

1

You want to convert an rpm packages file into a standard format as part of a shell script and then manipulate the contents.
Which archive format is used by rpm?

Selecciona una de las siguientes respuestas posibles:

cpio
tar
bzip2
gzip
zip

Explicación

Pregunta 72 de 159

1

Which four statements correctly describe the contents of the sysfs filesystem?

Selecciona una o más de las siguientes respuestas posibles:

It contains kernel parameter files.
It contains metadata on all block devices.
It contains metadata on firmware.
It contains metadata on all loaded modules in the kernel.
It contains metadata on device classes.
It contains metadata on system uptime.

Explicación

Pregunta 73 de 159

1

Which three statements are true about the mount command?

Selecciona una o más de las siguientes respuestas posibles:

It supports labels.
By default, it can be used by an ordinary user to mount a local file system.
It lists all the currently mounted filesystems, if executed without any arguments
It lists only the filesystems listed in /etc/fstab if executed without any arguments.
Only root can mount filesystems that are not listed in listed in /etc/fstab.

Explicación

Pregunta 74 de 159

1

Examine these configuration files:

# cat /etc/auto.master
/net-hosts
/- auto.direct ro
# cat /etc/auto.direct
/nfs1 o16:/export/share1
/nfs2 -sync o16:/export/share2
/nfs3 o16:/export/share3

Which mount options will automounter use to mount the filesystems listed in /etc/auto.direct?

Selecciona una de las siguientes respuestas posibles:

All three filesystems are mounted read-only, async.
/nfs1 and /nfs3 are mounted read-only, async whereas /nfs2 mounted read-write, sync.
/nfs1 and /nfs3 are mounted read-only, async whereas /nfs2 mounted read-only, sync.
All three filesystems are mounted read-write, sync.

Explicación

Pregunta 75 de 159

1

Examine the UserDir directives in this extract from /etc/httpd/conf/httpd.conf:

<IfModule mod_userdir.c>
UserDirenabled user1
UserDirdisabled user1
UserDirpublic_html

</IfModule>
The web server URL is http://host01.
A website server URL is http://host01.
A user attempts to access user1's webpages using this URL:

httpd:/host01/~user1

Which statement describes the outcome?

Selecciona una de las siguientes respuestas posibles:

The occurrence user1 in the list of disabled users causes an access denied error to the website contained in user1'1 public_html subdirecroty, overriding the enabled directive.
The occurrence of user1 in the list of enabled users allows access to the website contained in user1's public_html subdirectory, overriding the disabled directive.
The configuration produces an error upon web server startup, because the enabled and disabled directive conflict.
Access is guaranteed because the UserDir public_html directive applies default access to all local users on the system, overriding the enabled of disabled directive.

Explicación

Pregunta 76 de 159

1

Which three Statements describe the capabilities and functions of the chkconfig command in Oracle Linux?

Selecciona una o más de las siguientes respuestas posibles:

It can be used to change the state of a service.
It can be used to specify the run levels for which a service is to be activated.
It can be used to list all services and their run levels-
It can be used to check the status of a service to see if it is running.
It can be used to add a service.

Explicación

Pregunta 77 de 159

1

Which three statements are true concerning the use of open SSH utilities?

Selecciona una o más de las siguientes respuestas posibles:

SCP always requires a passphrase to be used.
SCP permits copies between two remote hosts.
SFTP permits transfers between two remote hosts.
SSH may be used to execute a single command on a remote host instead of executing the login shell on the remote host.
SFTP may be used to execute a command on the remote server.

Explicación

Pregunta 78 de 159

1

The default locations and paths used by logwatch are:

/etc/logwatch/conf
/user/share/logwatch/default.conf
/user/share/logwatch/dist.conf

Which three statements are true logwatch installation and configuration?

Selecciona una o más de las siguientes respuestas posibles:

After installing logwatch, no configuration is required to produce reports from system logs.
After installing logwatch, the /usr/share/logwatch/dist.conf directory will not exist because it is optional.
After installing logwatch, you must create /etc/logwatch/conf to produce reports from system logs.
After installing logwatch, all the default directories continue to exist.
To produce a report from the previous day's logs, the - - range yesterday parameter must be specified.
Running /usr/sbin/logwatch produces a report of the previous day's log files.

Explicación

Pregunta 79 de 159

1

Which three tasks should be performed to configure a host to act as an SSH server?

Selecciona una o más de las siguientes respuestas posibles:

The openssh-server package must be installed.
The sshd service must be started.
The openssh package must be installed.
The openssh-client package must not be installed.
The ssh-agent must be running.

Explicación

Pregunta 80 de 159

1

Which three methods might be used to change kernel parameters, thereby modifying the values for running system?

Selecciona una o más de las siguientes respuestas posibles:

Using the echo command to write values to specific files in the /sys directory
Issuing the sysct1 -w command to write values to specific files in the /proc/sys directory
Issuing the sysct1 -w command to write values to specific files in the /sys directory
Adding to or modifying parameters in /etc/sysct1.conf and issuing the sysct1 -p command
Using the echo command to write values to specific files in the /proc/sys directory

Explicación

Pregunta 81 de 159

1

Examine some of the contents of the /boot/grub/grub.com file from an Oracle Linux system:

Default=0
Timeout=5
Splashimage=(hd0, 0)/grub/splash.xpm.gz
Hiddenmenu
Title Oracle Linux Server (2.6.39-100.0.12.16uek.x86_64)
Root (hd0, 0)
Kernet /vmlinuz-2.6.39-100.0.12.e16uek.x86_64 ro root=UUIP=a4b6049b-9aa1-44b4-87cf- aebb17alcdf9 rd_NO_LUKS re_NO_LVM rd_NO_DM LANG=en_US.UTF-8
SYSFONT=1atarcycreheb-sun16 KEYBOARDTYPE=PC KEYTABLE=us rhgb quiet numa=off
Initrd /initramfs-2.6.39-100.0.12.e16uek.x86_64.img
Title Oracle Linux Server (2.6.32-131.0.15.e16.x86_64)
Root (hd0, 0)
Kernel /vmlinuz-2.6.32-131.0.15.e16.x86_64 ro root=UUIS=a4b6049b-9aa1-44b4-87cf- aebb17a1cdf9 rd_NO_LUKS rd_NO_LVM rd_NO_LVM re_NO_MD rd_NO_DM
LANG=en_UD.UTF-8 SYSFONT=latarcyheb-sun16 KEYBOARDTYPE=PC KEYTABLE=us
Crashkernel=auto rhgp quiet numa = off
Initrd /initramfs-2.6.32-131.0.15.e16.x86_64.img

Which three statements are true about the behavior and configuration of GRUB on this system?

Selecciona una o más de las siguientes respuestas posibles:

(hd0, 0) represents the first partition on device /dev/hd0.
The hiddenmenu directive hides the GRUB menu only for 5 seconds after which it becomes visible again.
The root directive specifies an initial root filesystem, allowing access to block device modules to mount the real root filesystem on disk.
(hd0, 0) represents the first partition on the first drive detected by the BIOS.
The initrd directive specifies the initamfs, an initial root filesystem in RAM, allowing access to block device modules to mount the real root filesystem.
Each kernel must have an initramfs that matches the version of the kernel.
Because there is an Unbreakable Enterprise Kernel installed, it must be the default kernel listed as shown by the default=0 directive.

Explicación

Pregunta 82 de 159

1

Identify three features/functions enabled by using asmlib?

Selecciona una o más de las siguientes respuestas posibles:

Application-to-disk data integrity checking
Device naming persistence
Replaces udev for all files used by any application
Device ownership persistence
Multipathing driver for luns used for asmdisks
locking facility for using luns in an ASM cluster

Explicación

Pregunta 83 de 159

1

You must remove a Physical Volume (PV) from a Volume Group (VG) containing one Logical Volume (LV) without compromising data availability.

What must you do before using the vgreduce command, to remove the PV?

Selecciona una de las siguientes respuestas posibles:

Move allocated physical Extents (PE) from /dev/sdd to other physical volumes using the pvmove command.
Remove the /dev/sdd PV using the pvremove command.
Resize the /dev/sdd PV to zero using the pvresize command.
Move allocated physical Extents (PE) from /dev/sdd to other physical volumes by using the 1vvonvert - - replace command.

Explicación

Pregunta 84 de 159

1

Examine some rules from the /etc/rsyslog.conf file:

*.info;mail.debug;authpriv.none;cron.none/var/log/messages
uucp, news.notice/var/log/spooler

Which statement is true about the listed rules?

Selecciona una de las siguientes respuestas posibles:

Only messages with a priority of info from all facilities are sent to /var/log/messages.
Only messages with a priority of notice from the news facility are sent to /var/log/spooler.
Messages with a priority of debug or higher from the mail facility are sent to /var/log/message
Only messages with a priority of debug from the mail facility are sent to /var/log/messages.

Explicación

Pregunta 85 de 159

1

Examine this output captured on an NFS server:

# mount | grep export
/dev/sdc1 on /export type ext3 (rw)
/dev/sdc2 on /export/share2 type ext3 (rw)
# cat /etc/exports
/export (*ro)

You mounted the /export filesystem on an NFS client using the command:

# mount NFS_SERVER:/export/mnt

What is the result of listing the files in /mnt/share2 on the NFS client?

Selecciona una de las siguientes respuestas posibles:

It lists any files stored in the share2 directory in the /dev/sdc1 partition of the NFS server.
It lists any files stored in the root directory in the /dev/sdc2 partition of the NFS server.
It results in a permission denied error.
It results in a stale NFS handle error.
It produces no output.

Explicación

Pregunta 86 de 159

1

A web server on HOST01 is listening on port 80.
Examine the IPTABLES rule shown:

[root@host01 ~] # iptables -L INPUT
Chain INPUT (policy ACCEPT)
targetportoptsourcedestination
ACCEPTtcp- - anywhereanywheretcp dpt:http

Another rule is then added:

[root@host01 ~] # iptables -A INPUT -P tcp - - dport 80 -j REJECT

What is the effect of this command on subsequent attempts to access the web server on HOST01 using port 80?

Selecciona una de las siguientes respuestas posibles:

New connection attempts timeout.
New connection attempts are refused and the client informed of the refusal.
New connection attempts always succeed.
New connection attempts succeed until a reload of the firewall rules.

Explicación

Pregunta 87 de 159

1

Which three actions may be performed using the date command in Oracle Linux?

Selecciona una o más de las siguientes respuestas posibles:

Setting the hardware clock from the current system time
Setting the system time from the hardware clock
Displaying the current time in an administrator-specified format
Displaying the time and date in the future
Displaying the time and date in the past
Synchronizing the system time from an ntp server

Explicación

Pregunta 88 de 159

1

Match the following symbolic notations of the file permissions with their numeric values:

(1)- - - - S - - - - - - a) 5000
(2)- - - - - - - S - - - b) 4100
(3)- - - - - - - - - - - t c) 7101
(4)- - - - S - - - - - T d) 1001
(5)- - - - S - - S - - t e) 7040
(6)- S - - S r - - - T f) 2010

Selecciona una de las siguientes respuestas posibles:

1-d, 2-f, 3-b, 4-e, 5-c, 6-a
1-b, 2-f, 3-d, 4-a, 5-c, 6-e
1-f, 2-a, 3-c, 4-b, 5-e, 6-d
1-b, 2-d, 3-f, 4-a, 5-e, 6-c

Explicación

Pregunta 89 de 159

1

In which two situations would you use TCP as the preferred protocol to transfer data between different systems over a network spread across the globe? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

when the integrity of the data is important
when you want to retransmit the dropped packages
when the connection with the other system is important
when you want to establish a connection with another system before sending data

Explicación

Pregunta 90 de 159

1

Identify the situation in which you would opt for aggregating multiple networks into a single interface via the Etherchannel.

Selecciona una de las siguientes respuestas posibles:

to reduce redundancy in the event of hardware failure
to meet the requirement of hosting multiple Web sites on a single computer
when multiple IP networks are being used on the same physical network segment
when the bandwidth requirements on the network continue to grow beyond the capacity of a single network interface

Explicación

Pregunta 91 de 159

1

As a Linux administrator, you issued the following command:

tune2fs -O ^has_journal /dev/sdb2

What is the purpose of issuing this command?

Selecciona una de las siguientes respuestas posibles:

to convert the ext2 filesystem on the /dev/sdb2 disk partition to the ext3 filesystem
to convert the ext3 filesystem on the /dev/sdb2 disk partition to the ext2 filesystem
to attach the /dev/sdb2 filesystem to the journal block device located on external journal
to take a backup of the journal in the /dev/sdb2 filesystem in to the super block of the /dev/sdb2 filesystem

Explicación

Pregunta 92 de 159

1

The user smith, whose primary group is smith, wants to create a file in his home directory, which belongs to the group apps.
Which two statements are correct?

Selecciona una o más de las siguientes respuestas posibles:

SGID should be set on smith's home directory to let smith create files that belong to a group that is not his primary group.
The user smith can create a file that belongs to the apps group, only If his private group is the apps group as per /etc/group.
The user smith can use the newgrp command to change the primary group to apps, only if smith is listed in /etc/group as a member of the apps group.
The user smith can use the newgrp command to change the primary group to apps, but a password is required if smith is not listed in /etc/group as a member of the apps group.

Explicación

Pregunta 93 de 159

1

Which three are valid directories for cron jobs to be run at known intervals?

Selecciona una o más de las siguientes respuestas posibles:

/etc/cron.hourly
/etc/cron.daily
/etc/cron.minutely
/etc/cron.monthly
/etc/cron.yearly
/etc/cron.annually

Explicación

Pregunta 94 de 159

1

Which two statements are true concerning the installation and configuration of the bootloader by the Anaconda installer, which is then used to boot Oracle Linux?

Selecciona una o más de las siguientes respuestas posibles:

The Linux Loader (LILO) bootloader may be chosen for installation.
The bootloader must be password protected and Anaconda prompts for a password in all cases.
The Grand Unified Bootloader (GRUB) is the only bootloader used by Oracle Linux.
If previously installed operating systems are found on disk partitions that were not overwritten, then an attempt is made to configure the bootloader to be able to boot them.
The bootloader is installed by default in the first partition of the disk.

Explicación

Pregunta 95 de 159

1

You want to display the value of a shell variable called service after assigning a value as shown:

SERVICE =ACCTS

Which two settings will display the name of the variable and its value?

Selecciona una o más de las siguientes respuestas posibles:

set | grep service
echo $SERVICE
env | grep SERVICE
env $SERVICE
set $SERVICE

Explicación

Pregunta 96 de 159

1

Which statements is true concerning Oracle Linux configuration files for users and groups?

Selecciona una de las siguientes respuestas posibles:

The /etc/passwd file contains hashed passwords for each user.
The /etc/shadow file contains hashed passwords for each user.
The GECOS field in /etc/passwd file may be empty.
The /etc/group file contains the group name and the hashed group password.

Explicación

Pregunta 97 de 159

1

Examine these statements and their output taken right after successful install of Oracle Linux:

[root@FAROUT /] rpm q firstboot
Firstboot -1.110.10-1.0.2.e16.x86_64
[root @FAROUT /] # chkconfig - - list firstboot
Firstboot 0:off 2:off 3:off 4:off 5:off 6;off
[root@FAROUT /] # /etc/sysconfig/firstboot
RUN_FIRSTBOOT=NO

What is the conclusion?

Selecciona una de las siguientes respuestas posibles:

The option to run firstboot was deselected during Oracle Linux installation.
The system was installed with desktop graphical packages and rebooted and the firstboot utility ran successful.
Firstboot never ran in any run level because the service is turned off for all run levels.
The system was installed without selecting desktop graphical packages, thereby disabling firstboot from running.

Explicación

Pregunta 98 de 159

1

Which three settings can be controlled by using the chage breemar command as the root user, to modify the parameters in the /etc/shadow file?

Selecciona una o más de las siguientes respuestas posibles:

The expiration date of the breemar account
The number of days after the breemar account is locked, that it becomes expired
The maximum number of days that must elapse between password changes by the user breemar before the password becomes invalid
The number of days after the breemar account is locked, that it becomes unlocked
The minimum number of days that must elapse between password changes by the user breemar
The maximum number of failed login attempts on the breemar account before the account is locked

Explicación

Pregunta 99 de 159

1

Examine this extract from the /etc/ssh/sshd_config file:

passwordAuthentication no

What is the effect of this parameter settings on the use of openSSH commands on both the client and server?

Selecciona una de las siguientes respuestas posibles:

Passwords are not required and no ssh-keygen is required either. Only passphrase are required.
Client users whose keys are not in the authorized_keys file on the server are unable to use passwords to authenticate themselves to the server.
The ssh daemon does not ask for a password before starting or stopping the sshd service.
Client users whose keys are not in the authorized_keys file on the client are unable to use passwords to authenticate themselves to the server.

Explicación

Pregunta 100 de 159

1

Which four statements are true about software on the Oracle Public YUM server?

Selecciona una o más de las siguientes respuestas posibles:

It contains Oracle Linux installation ISO images.
It contains Oracle Linux binary RPM packages.
It contains Oracle Linux errata packages.
It contains Oracle Linux source RPM packages.
It contains beta Oracle Linux software packages.
It does not contain Unbreakable Enterprise Kernel packages.

Explicación

Pregunta 101 de 159

1

Examine this sequence of commands and output:

[root@FARAWAY ~] # cat /etc/oracle-release
Oracle Linux Server release 6.1
[root@FARAWAY ~]# rpm -qa oraclelinux*
Oraclelinux-release-noted-6Server-5.x86_64
Oraclelinux-release-6Server-1.0.2.x86_64
[root@FARAWAY ~] # rpm -qa rehat-release*
[root@FARAWAY ~] #
[root@FARAWAY ~] # rpm -qf /etc/oracle-release
Oraclelinux-release-6Server-1.0.2.x86_64
[root@FARAWAY ~] rpm -qf /etc/redhat-release
Oraclelinux-release-6Server-1.0.2.x86_64

Which two can be determined from this output?

Selecciona una o más de las siguientes respuestas posibles:

The system has Oracle Linux 6 installed and the Red Hat compatible kernel is running.
The system has Oracle Linux 6 installed and the Oracle Unbreakable Enterprise kernel Is running.
It is not possible to determine which kernel is running.
This system has been booted at least once, with the Red Hat-compatible kernel and once with the Unbreakable Enterprise kernel.
The oracle-release package contains both Oracle and Red Hat release metadata.

Explicación

Pregunta 102 de 159

1

Examine the contents of /etc/rc.d

Which two statements are true concerning the files contained in the run level-specific directories rc0.d through rc6.d?

Selecciona una o más de las siguientes respuestas posibles:

The files starting with S or K are links to scripts in the /ete/init.d directory.
The files starting with S are always invoked by the /etc/rc.d/rc script even if the service managed by that script is already down.
The files starting with S or K are added by using the chkcor.fig command.
The files starting with K are always invoked by the /rc/rc,d/re script even if the service managed by that script is already up.
The files starting with S are invoked before those starting with K.

Explicación

Pregunta 103 de 159

1

As root, you enter a crontab command as shown;

[root@FAROUT cron.daily] # crontab -1
/2 * * * vmstat
0 0 1 1-5 * iostat
[root@FAROUT cron.daily] #

Which three statements are true concerning the two cron jobs listed?

Selecciona una o más de las siguientes respuestas posibles:

The iostat command runs at midnight of every day except Sunday.
The vmstat command runs twice per hour.
The vmstat command runs every other hour.
The vmstat command runs every second minute.
All cron job output is sent to the root user's mall.
All cron job output is sent to /var/log/messages.
The iostat command runs at midnight on the first day of each of the first five months of the year.

Explicación

Pregunta 104 de 159

1

Which three statements are true configuration files and the behavior of module parameters specified in those files, in the /etc/modprobe.d directory?

Selecciona una o más de las siguientes respuestas posibles:

The files may contain options to be passed to a module only when it is a dependency of a module being inserted.
The file may contain shell commands to be run instead of inserting a particular module in the kernel.
The files may contain options to be passed to a module, only when it is inserted using a modprobe command.
The files may contain alias names for modules.
The file may contain instructions to ignore certain modules.
The files may contain options to be passed to a module only when it is Inserted using an insmod command.

Explicación

Pregunta 105 de 159

1

Which two statements are true regarding the use of the ssh-agent and ssh-add commands?

Selecciona una o más de las siguientes respuestas posibles:

The ssh-agent is used to hold private keys.
The ssh-add command may ask for a passphrase each time the same key is required by the same user in the same shell.
The ssh-agent is used to hold only public keys.
The ssh-add command asks for the passphrase only the first time a key is required by the same user in the same shell.
The ssh-add command retries the most recently saved passphrase if multiple key files are used.

Explicación

Pregunta 106 de 159

1

Users complain that system performance is unacceptable when using a specific application service running on a multiprocessor service.
You have established from the storage team that disk response times have not increased, so you can discount there being an I/O problem.
You run vmstat to look at CPU activity and notice high average disk times on the multiprocessor system and an average run queue of zero.
You require more detail about each CPU from which the vmstat figures are derived, to investigate if the load is distributed evenly across all CPUs.

Which three commands provide more detailed information about CPU load distribution?

Selecciona una o más de las siguientes respuestas posibles:

iostat x
top
mpstat
vmstat
sar

Explicación

Pregunta 107 de 159

1

Which three statements are true concerning filesystems supported by Oracle Linux?

Selecciona una o más de las siguientes respuestas posibles:

An ext3 filesystem can be mounted as an ext2 filesystem.
An ext4 filesystem can be mounted as an ext3 filesystem.
The ext3 and ext4 filesystems both support multiple journaling modes.
The btrfs filesystem includes a volume manager.
The btrfs filesystem cannot be used for the root filesystem.
The ext4 filesystem is a copy-on-write filesystem.

Explicación

Pregunta 108 de 159

1

The SSHD service is controlled by the script in /etc/init.d/sshd, part of which is shown here:

[root@FAROUT ~] cat /etc/init.d/sshd
# !/bin/bash
#
# sshdStart up the OpenSSH server daemon
#
# chkconfig: 23455525
# description: SSH is a protocol for secure remite shell access. \
# This service starts up the Open SSH server daemon.
#

You issue chkconfig commands to change the sshd service:

[root@FAROUT ~] # chkconfig sshd off
[root@FAROUT ~] # chkconfig sshd reset

What is the result of the two commands issued?

Selecciona una de las siguientes respuestas posibles:

The sshd service configuration is restored to the settings that existed before setting it off.
The sshd service configuration is restored to start In run levels 2, 3, 4 and 5.
The sshd service configuration is restored to start in run levels 2 and 5 only.
The sshd service configuration is restored to those that existed after the operating system was first installed.

Explicación

Pregunta 109 de 159

1

The dailyrun.sh shell script run by the user hr on a daily basis suddenly returns an error.
You investigate this by running the commands manually as user hr and discovered that this line of shell cod is responsible:

1s als > /home/prodrun/files.1st
Bash: files.1st:cannot overwrite existing file

What is the cause of this error?

Selecciona una de las siguientes respuestas posibles:

The hr user has no write permissions on the /home/prodrun/files.1st file.
The hr user has no write permissions on the /home/prodrun directory.
The dailyrun.sh shell script has the setuid bit turned off.
The hr user environment has set on the noclobber option.

Explicación

Pregunta 110 de 159

1

Examine the output shown:

[root@FAROUT fs] # rpm -qa | grep preinstall
Oracle-rdbms-server-11gR2-preinstall-1.0-6.e16.x86_64
[root@FAROUT fs] # rpm -q1 oracle-rdbms-server-11gR2-preinstall-1.0-6.e16.x86_64 /etc/rc.d/init.d/oracle-rdbms-server-11gR2-preinstall-firstboot /etc/sysconfig/Oracle-rdbms-server- 11gR2-preinstall-verify
/etc/sysconfig/oracle-rdbms-server-11gR2-preinstall/Oracle-rdbms-server-11gR2-preinstall.param
/usr/bin/oracle-rdbms-server-11gR2-preinstall-verify

Which three statements are true about oracle-rdbms-server-11gR2-preinstall-1.0-6.e16.x86_64 rpm?

Selecciona una o más de las siguientes respuestas posibles:

It is a new name for oracle-validated package from Oracle Linux 5 that sets parameters to the same values.
It creates the oracle user if not already created, which owns the Grid Infrastructure software should that get installed.
It creates the grid user if not already created which owns the grid infrastructure software should that get installed.
It modifies kernel parameters in /etc/sysctl.conf.
It runs at the first boot after installing the packages to set a parameter indicating that is has run once.
It modifies parameters in the /etc/sysconfig/network-scripts directly.
It creates the osoper group, if not already created.

Explicación

Pregunta 111 de 159

1

You installed the sendmail-cf package using the yum command as shown:

# yum -Y install sendmail-cf
Loaded plugins: security
Setting up Install Process
Resolving Dependencies
- -> Running Transaction Check
- - - > Package sendmail-cf.noarch 0:8.14.4-8.e16 will be installed
- - > Processing Dependency: sendmail = 7.14.4-8.e16 for package: sendmail-cf-8.14.4- 8.e16.noarch
- - > Running transaction check
- - > Package sendmail.x86_64 0:8.14.4-8.e16 will be installed
- - > Finished Dependency Resolution
Dependency Resolved

What is the outcome of the YUM command?

# yun y remove sendmail

Selecciona una de las siguientes respuestas posibles:

It fails with an error because the sendmail-cf package depends on the package being removed.
It succeeds and removes both the sendmail and sendmail-cf packages.
It succeeds and only removes the sendmail package.
It removes the sendmail packages and raises a warning about the sendmail-cf package, which depends on the package being removed.
It removes the sendmail package and prompts you for the option to remove the sendmail-cf package.

Explicación

Pregunta 112 de 159

1

You issued the following command:

renice +1 987 -u daemon smith -p 20

What is the purpose of issuing this command?

Selecciona una de las siguientes respuestas posibles:

to change the priority of process with ID 20 and all processes owned by the user smith
to change the priority of process with ID 20 and all processes owned by the users daemon
to change the priority of processes with IDs 1 and 987 and all processes owned by daemon and smith to 20
to change the priority of processes with IDs 987 and 20 and all processes owned by users daemon and smith

Explicación

Pregunta 113 de 159

1

Match the modinfo command options with their descriptions:

1) p A) description of the module
2) a B) license of the module
3) d C) lists parameters (options) for the module
4) l D) lists the author of the module

Selecciona una de las siguientes respuestas posibles:

1-C, 2-A, 3-D, 4-B
1-C, 2-D, 3-A, 4-B
1-B, 2-A, 3-D, 4-C
1-B, 2-D, 3-A, 4-C

Explicación

Pregunta 114 de 159

1

Which two statements are true about kickstart installation? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

It can be performed using only network file system (NFS).
The Anaconda has to be made aware of the kickstart installation by passing the ks option at the boot: prompt.
By default, the kickstart installation sets the same root password if all the systems are set up using the same kickstart file.
Omitting any required item during the kickstart file creation would cause the item to be skipped during the kickstart installation without requiring any user intervention.

Explicación

Pregunta 115 de 159

1

You want to configure the display login program to display the face browser of user accounts for system logon. Which two display managers support this feature? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

gdm
kdm
twm
xdm

Explicación

Pregunta 116 de 159

1

You want to probe the network segment so that you can determine which addresses are currently in use.
Which three commands would you use to perform this task? (Choose three.)

Selecciona una o más de las siguientes respuestas posibles:

arp
dig
mtr
ping -b
nslookup
nmap -sP
arping -D

Explicación

Pregunta 117 de 159

1

You work for XYZ organization and are setting up a new Linux box. The organization wants the user's data on the system to be safe even in the event of a crash of the root filesystem.
Which step do you think would help the administrator achieve the organization objective?

Selecciona una de las siguientes respuestas posibles:

Have /opt directory on its own filesystem with the filesystem being ext3.
Have /home directory on its own filesystem with the filesystem being ext3.
Have /var directory on its own filesystem and all other filesystems under / (root filesystem).
Have /usr directory on its own filesystem and all other filesystems under / (root filesystem).

Explicación

Pregunta 118 de 159

1

Your server is running without a reboot for more than a year and is suddenly showing a drift in the
time with the hardware clock. As an administrator which two steps would you perform to synchronize both the clocks without using an external source? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

Use the date command to adjust the system clock.
Use the rdate command to adjust the hardware clock.
Use the ntpdate command to adjust the system clock.
Use the hwclock command to change the hardware clock time.

Explicación

Pregunta 119 de 159

1

In which three situations is Grand Unified Bootloader (GRUB) the best choice as the boot loader? (Choose three.)

Selecciona una o más de las siguientes respuestas posibles:

when you want to boot from a network
when there is a need for a serial console
when you want to have a dual boot on the system
when you want the support for journaling file system
when you want to boot the system by just passing the kernel and the initrd files path at the boot prompt

Explicación

Pregunta 120 de 159

1

Which statements are true about Logical Volume Manager (LVM) in Linux? (Choose all that apply.)

Selecciona una o más de las siguientes respuestas posibles:

The root filesystem / can be installed on a Logical Volume.
The LVM does not have built-in support for striping and mirroring.
Two Volume Groups can be merged together to form a single Volume Group.
The Logical Volumes can be extended without even unmounting the filesystems.
Physical Volumes can be added as well as removed from an existing Volume Group.

Explicación

Pregunta 121 de 159

1

Which three statements are true about /etc/at.allow and /etc/at.deny files? (Choose three.)

Selecciona una o más de las siguientes respuestas posibles:

If only the /etc/at.deny file exists, all users are denied from using at, except the root user.
If /etc/at.allow and /etc/at.deny files do not exist, all users are permitted to use at.
If /etc/at.allow and /etc/at.deny files do not exist, only the root user is permitted to use at.
If only the /etc/at.allow file exists, only the users whose names are listed in the /etc/at.allow file are allowed to use at.
If /etc/at.allow and /etc/at.deny files exist, only the users whose names are listed in /etc/at.allow would be allowed to use at.

Explicación

Pregunta 122 de 159

1

Which two statements are true about the /etc/exports entry given below? (Choose two.)

/export/setup station1 (rw,no_root_squash)

Selecciona una o más de las siguientes respuestas posibles:

The network file system (NFS) service would not let station1 to write on the /export/setup share.
The NFS service would grant all other machines read and write access without squashing the root privileges except station1.
The NFS protocol on the server requires that requests from station1 should originate on an internet port greater than port 1024.
The NFS protocol on the server would reply to requests from station1 only after any changes made by that request have been committed to stable storage (/export/setup).

Explicación

Pregunta 123 de 159

1

You set the SELinux policy as SELINUXTYPE=targeted. What implications does it have on different applications? (Choose all that apply.)

Selecciona una o más de las siguientes respuestas posibles:

Only targeted network daemons are protected.
Separate types are defined for most commands and services.
Full SELinux protection would be applicable for all the daemons and applications.
Applications that do not have any policy defined would run in the unconfined_t domain.
Applications that do not have any policy defined would be denied access to the rest of the system.

Explicación

Pregunta 124 de 159

1

Which three statements are true regarding the /etc/rc.sysinit boot script? (Choose three.)

Selecciona una o más de las siguientes respuestas posibles:

It sets up the system clock.
It configures kernel parameters.
It does not configure swap space.
It is read before the /etc/inittab file by init.
It saves dmesg content to the /var/log/dmesg file.

Explicación

Pregunta 125 de 159

1

Which two statements are true about an X server? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

Multiple X servers can be run on the same host.
The first X server on a remote host listens on port 6000.
The first X server on a remote host listens on port 6001.
Only a single X server can run on a machine at any given point of time.

Explicación

Pregunta 126 de 159

1

Which statement is FALSE concerning the use of OpenSSH utilities? (Choose the best answer.)

Selecciona una de las siguientes respuestas posibles:

scp always requires a passphrase to be used
scp permits copies between two remote hosts
ssh may be used to execute a single command on a remote host instead of executing the login shell on the remote host
sftp may be used to execute a command on the remote server

Explicación

Pregunta 127 de 159

1

Examine the commands and output shown:

What is the cause of this connection refusal? (Choose the best answer.)

Selecciona una de las siguientes respuestas posibles:

The web server has no documents to serve
The firewall blocked the connection due to an unintended rule blocking localhost port 80
The web server is not listening on the local loopback adapter
The system has no route to localhost

Explicación

Pregunta 128 de 159

1

The dailyrun.sh Bash shell script has the permissions as listed here:

-rw-r- -r- - 1 hr hradmin 8 Apr 2 06:57 dailyrun.sh

Which three methods will be successful at avoiding permissions errrors when attempting to run the script? (Choose three.)

Selecciona una o más de las siguientes respuestas posibles:

executing the shell script using an alias created with the alias dailyrun='bash dailyrun.sh'
executing the shell script using an alias created with the alias dailyrun=dailyrun.sh
executing the shell script from the shell prompt using the bash command
executing the shell script from the shell prompt using the sh command
executing the shell script from within a shell function using an alias created with the alias dailyrun='dailyrun.sh'

Explicación

Pregunta 129 de 159

1

Match the bash files with their correct description: (Choose the best answer.)

File name Description
1) /.bash_history a. a list of commands to be executed when you log in
2) /.bash_logout b. a list of commands that is executed every time you open a new shell
3) /.bash_profile c. a list of commands you have executed from a bash shell
4) /.bashrc d. a list of commands to be executed when you exit a login shell
e. a list of commands executed before the current day
f. a list of commands executed when a shell script has a nonzero return code

Selecciona una de las siguientes respuestas posibles:

1-c, 2-d, 3-a, 4-f
1-c, 2-b, 3-d, 4-a
1-c, 2-d, 3-a, 4-b
1-e, 2-c, 3-a, 4-d

Explicación

Pregunta 130 de 159

1

The user scott tries to create a directory hierarchy under a specific directory location and encounters an error:

Which command must scott use to create the directory hierarchy successfully? (Choose the best answer.)

Selecciona una de las siguientes respuestas posibles:

mkdir /test/test1/stored/all
mkdir -r test/test1/stored/all
mkdir -p test/test1/stored/all
mkdir R test/test1/stored/all E. mkdir r /tmp/test/test1/stored/all
mkdir -r /tmp/test/test1/stored/all

Explicación

Pregunta 131 de 159

1

Which statement correctly describes the default location of the GRUB bootloader code used by Oracle Linux? (Choose the best answer.)

Selecciona una de las siguientes respuestas posibles:

All of the GRUB bootloader code is written to the Master Boot Record (MBR)
A portion of the GRUB bootloader code is written to the Master Boot Record (MBR) and the rest is written to the / filesystem
All of the GRUB bootloader code is written to the /boot filesystem
A portion of the GRUB bootloader code is written to the /boot filesystem and the rest is written to the / filesystem
A portion of the GRUB bootloader code is written to the Master Boot Record (MBR) and the rest is written to the /boot filesystem

Explicación

Pregunta 132 de 159

1

Which two statements are true concerning OpenSSH configuration files? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

The /etc/ssh/ssh_config file is the global configuration file for the sshd server daemon
If user harhest has an ssh configuration file called /home/harhest/.ssh/config, then this overrides the /etc/ssh/ssh_config file for OpenSSH sessions used by harhest
Copying the /harhest/.ssh/known_hosts file from user harhest on hosta to the /jopam/.ssh/known_hosts file for user jopam on hostb, permits harhest to use OpenSSH commands to access the jopam account without supplying a password
An ssh client uses either id_dsa.pub or id_rsa.pub to authenticate itself without a password, to an ssh server, which checks them into the target users' authorized_keys file

Explicación

Pregunta 133 de 159

1

Examine the channel specification in the /etc/yum.repos.d/public-yum-016.repo file:
What is the effect of the gpgcheck=0 setting?

Selecciona una de las siguientes respuestas posibles:

yum will not check for dependencies when installing packages from this channel
yum will not perform key verification during package installation from this channel
This channel will not be used by yum when it checks for updated packages
This channel will not be used by yum when it searches for packages
yum will not check if the channel metadata is up-to-date for this channel

Explicación

Pregunta 134 de 159

1

Examine the commands and output related to the use of the cron facility:

Which three statements are true concerning the use of the crontab utility? (Choose three.)

Selecciona una o más de las siguientes respuestas posibles:

The oracle user may list the root user's crontab using cat /var/spoo1/cron/root
The oracle user may list the root user's crontab using crontab -u root -1
The oracle user may not delete the root user's crontab using crontab -u root -r
The oracle user may not modify the root user's crontab using crontab -u root -e
The root user may not create the oracle user's crontab using crontab -u oracle -e
The root user may modify the oracle user's crontab using crontab -u oracle -e

Explicación

Pregunta 135 de 159

1

Examine the files and directories shown:

What is the reason for this configuration? (Choose the best answer.)

Selecciona una de las siguientes respuestas posibles:

The links in /etc to the directories in /etc/rc.d are provided to make Linux run level processing configuration resemble the SysV UNIX configuration
The links in /etc to the directories in /etc/rc.d are provided to permit one set to have different owners or ppermissions than the other
The links in /etc to the directories in /etc/rc.d are not required and must have been added by the administrator
The links in /etc to the directories in /etc/rc.d are provided to allow /etc/rc.d/rc to work properly

Explicación

Pregunta 136 de 159

1

Which three actions may be done using the Anaconda installer when working with an Oracle Linux 6 system? (Choose three.)

Selecciona una o más de las siguientes respuestas posibles:

downgrading an installed system
booting an installed system from a local drive
attempting a rescue to repair problems with a partition table that prevents booting an installed system
deinstalling an installed system
upgrading an installed system

Explicación

Pregunta 137 de 159

1

Which three statements are true concerning the use of keys generated by the ssh-keygen command? (Choose three.)

Selecciona una o más de las siguientes respuestas posibles:

dsa keys must be protected by a passphrase
dsa keys are supported by version 2 of the ssh protocol
rsa keys are supported by version 2 of the ssh protocol
rsa keys are supported by version 1 of the ssh protocol
dsa keys are supported by version 1 of the ssh protocol
rsa keys must be protected by a passphrase

Explicación

Pregunta 138 de 159

1

You are attempting to install Oracle Linux 6 with default options and the screen is distorted. You stop the install.
Which two methods can you use to install Oracle Linux and work around this problem? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

Install the system using text mode
Press the tab key and enter askmethod to allow a choice of video drivers to be listed
Specify the screen resolution at the Anaconda boot prompt
Install the system using a different X server
Install the system with the basic video driver option

Explicación

Pregunta 139 de 159

1

Which two statements are true concerning an MSDOS partition table? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

It does not support disks with more than 1024 cylinders
It can be used on the boot disk
It supports either four primary partitions or three primary partitions and one extended partition
It can be used on disks up to four terabytes in size
It supports named partitions

Explicación

Pregunta 140 de 159

1

Match the shell variables with their correct description:

1) $1 a) process ID of the shell
1) $* b) the string containing all the arguments to the shell
1) $? c) process ID of the last command run in the background
1) $$ d) positional parameter
1) $! e) exit status of the most recently executed command

Selecciona una de las siguientes respuestas posibles:

1-d, 2-b, 3-e, 4-a, 5-c
1-b, 2-a, 3-e, 4-d, 5-c
1-e, 2-c, 3-a, 4-b, 5-d
1-d, 2-a, 3-c, 4-b, 5-e

Explicación

Pregunta 141 de 159

1

Which two are correct about the oracle-rdbms-server-11gR2-preinstall and oracle-validated RPMs? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

They are only available to Oracle Premium Support customers
They contain a number of other RPMS that are required for a successful Oracle database product installation
They have dependencies on a number of other RPMS that are required for a successful Oracle database product installation
The oracle-validated RPMS if used, must be installed before installing an Oracle database product
The oracle-validated RPMS if used, must be installed after installing an Oracle database product

Explicación

Pregunta 142 de 159

1

Examine the ssh connection and disconnection shown:

What is checked when the oracle user on the host FAROUT attempts to connect to the oracle user on the host WAYOUT on subsequent occasions? (Choose the best answer.)

Selecciona una de las siguientes respuestas posibles:

Hosts FAROUT and WAYOUT swap public host keys and compare them to the keys that were saved locally in the /oracle/.ssh/known_hosts file
The ssh client on host FAROUT, compares the public host key supplied by host WAYOUT with the public host key that was saved in the /oracle/.ssh/known_hosts file on server FAROUT
The ssh server on host WAYOUT, compares the public host key supplied by host FAROUT with the public host key that was saved in the /oracle/.ssh/authorized_keys file on server WAYOUT
The ssh client on host FAROUT, compares the public host key supplied by host WAYOUT with the public host key that was saved in the /oracle/.ssh/authorized_keys file on server FAROUT
The ssh server on host WAYOUT, compares the public host key supplied by host FAROUT with the public host key that was saved in the /oracle/.ssh/known_hosts file on server WAYOUT

Explicación

Pregunta 143 de 159

1

Which three statements are true about HugePages? (Choose three.)

Selecciona una o más de las siguientes respuestas posibles:

The number of HugePages is defined in /etc/security/limits.conf
The number of HugePages is controlled by a Linux kernel parameter
HugePages are never swapped to disk
HugePages usage reduces page table overhead
The number of HugePages is controlled by Oracle database parameters

Explicación

Pregunta 144 de 159

1

What is the purpose of executing lvconvert -m1 ...? (Choose the best answer.)

Selecciona una de las siguientes respuestas posibles:

to detach a copy from a mirrored logical volume
to reattach a detached copy back to its original logical volume
to add an additional copy to an already mirrored logical volume
to convert a linear logical volume into a mirrored logical volume
to convert a mirrored logical volume into a linear logical volume

Explicación

Pregunta 145 de 159

1

What is the purpose of setting USERCTL=yes In an interface configuration file located in /etc/sysconfig/network-scripts? (Choose the best answer.)

Selecciona una de las siguientes respuestas posibles:

to allow a non-root user to bring a network interface up or down using the ifup and ifdown commands
to allow a non-root user to bring a network interface up or down using the ifconfig command
to allow a non-root user to bring a network interface up or down using the ethtool command
to allow a non-root user to bring a network interface up or down using the ifup, ifdown, and ifconfig commands

Explicación

Pregunta 146 de 159

1

Which three statements are true about the Oracle Linux Multiple Device Driver (MD)? (Choose three.)

Selecciona una o más de las siguientes respuestas posibles:

RAID devices can only be built on disk partitions
It can be configured to have spare devices
It supports striping, mirroring, and a combination of striping and mirroring
It includes snapshot functionality
It can be used to mirror the root filesystem

Explicación

Pregunta 147 de 159

1

An Oracle Linux system has not been updated for a while and the currently running kernel is three releases behind the most recent kernel release.
Each released kernel fixed several problems, totaling 11 bug fixes. You are about to update this kernel using this command:

How does Ksplice Uptrack apply these updates? (Choose the best answer.)

Selecciona una de las siguientes respuestas posibles:

It downloads three updates, clones the running kernel in memory, applies the updates in one single atomic update, and uses Kexec to activate the updated kernel
It downloads 11 updates and applies them one by one to the running kernel
It downloads 11 updates and applies them in a single transaction to the running kernel
It downloads three updates and applies them in a single transaction to the running kernel

Explicación

Pregunta 148 de 159

1

What is the default volume or device type for swap space in Oracle Linux, when choosing the "basic storage devices" option during the install? (Choose the best answer.)

Selecciona una de las siguientes respuestas posibles:

a partition on a Logical Volume Manager Logical (LVM) managed volume
a partition on a local hard disk
a Linux Multi Disk (MD) driver device
a partition on a flash disk
a swap file on the root file system

Explicación

Pregunta 149 de 159

1

Select the two keywords used in /etc/rsyslog.conf that perform these two tasks: (Choose two.)
load modules
implement log message formatting

Selecciona una o más de las siguientes respuestas posibles:

template
$ModLoad
$template
$Load
ModLoad

Explicación

Pregunta 150 de 159

1

Examine the output of a bonded interface configuration from which one network cable has been unplugged:

Which statement is true when you plug in the eth2 network cable?

Selecciona una de las siguientes respuestas posibles:

The status of the slave interface eth2 changes to up and becomes a backup slave
The status of the slave interface eth2 changes to up and becomes a second active slave.
The status of the slave interface eth2 changes to up but must be manually assigned the active or backup slave role.
The status of the slave interface eth2 changes to up and is promoted to the primary active slave whereas eth1 becomes the backup slave

Explicación

Pregunta 151 de 159

1

Which two statements are true about an RPM package? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

An RPM can be installed from a local filesystem or a remote repository using the rpm command
In general, it is possible to have multiple versions of the same RPM package installed on a single system
a source RPM is machine architecture dependent
a binary RPM contains compiled programs as well as the source code of these programs
a RPM package can contain programs, documentation installation procedures, source files, and metadata about itself

Explicación

Pregunta 152 de 159

1

Which three statements are true regarding the use and administration of su and sudo in Oracle Linux? (Choose three.)

Selecciona una o más de las siguientes respuestas posibles:

A user may use su to start a new shell
The /etc/sudoers file may be edited to permit certain executables to be used with root privileges only if they are run on certain hosts
Using su-test to switch to the test user does not run the test user's login scripts
The /etc/sudoers file may be edited to prevent a user from using su to switch to another user
The /etc/sudoers file may be edited to allow a use to execute certain root-owned executables with root privileges
The /etc/sudoers file may be edited to prevent root from executing certain executables unless a password is provided

Explicación

Pregunta 153 de 159

1

Which statement correctly describes the requisite PAM control flag? (Choose the best answer.)

Selecciona una de las siguientes respuestas posibles:

requisite flagged modules are ignored if they fail
requisite flagged modules must be successfully checked for authentication to succeed. If a requisite module checks fails, the user is notified immediately with a message reflecting the first failed required or requisite module
requisite items only play a role when no other modules of that module type have succeeded or failed. In that case, the success or failure of a requisite flagged module determines the overall PAM authentication for that module type
requisite flagged modules must be successfully checked for authentication to succeed. If a requisite module checks fails, the user is not notified until all other modules of the same module's type have been checked

Explicación

Pregunta 154 de 159

1

Which two statements are true about the Ksplice patching feature feature of Oracle Linux when running in standard mode? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

It can update both the Unbreakable Enterprise Kernel (UEK) as well as the Red Hat compatible kernel
It can update both the running kernel in memory and the corresponding kernel image on disk
It requires access to the Internet, either direct or via a proxy server
It can update the kernel without rebooting the system
Updates to the Ksplice software are installed automatically

Explicación

Pregunta 155 de 159

1

Which three statements describe the OSWatcher Black Box (OSWbb) system monitoring and troubleshooting tool? (Choose three.)

Selecciona una o más de las siguientes respuestas posibles:

OSWbb is a part of the standard Oracle Linux distribution
OSWbb is an Oracle product and must be installed after system installation using yum or rpm
OSWbb is an Oracle product and is installed by downloading is from MOS and unpacking a tar file
OSWbb is a set of scripts using traditional UNIX monitoring tools to gather system activity and performance data
OSWbb maintains an archive of text files containing gathered statistics
OSWbb is designed to work with any POSIX-compliant shell

Explicación

Pregunta 156 de 159

1

You attempt to create a new user on Oracle Linux with nothing but a username:

useradd goodbred

Which three statements are true? (Choose three.)

Selecciona una o más de las siguientes respuestas posibles:

The goodbred account has default values assigned from the /etc/login.defs file
The goodbred account has /sbin/nologin as the shell in /etc/passwd
The goodbred account has default values assigned from the /etc/default/useradd file
The goodbred account is locked
The goodbred account will never have files copied from /etc/skel to the /etc/home/goodbred directory

Explicación

Pregunta 157 de 159

1

Which two actions should an Oracle Linux administrator perform to configure a server so that its clock is synchronized with a reference time server? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

Run ntpd at system boot to ensure that the system clock is synchronized with the reference time server
Run rdate at system boot to ensure that the system clock is synchronized with the reference time server
Run the ntpdate daemon to update the system clock, thereby keeping it synchronized with the reference time server
Run ntpdate at system boot to ensure that the system clock is synchronized with the reference time server
Run the ntpd daemon to update the system clock, thereby keeping it synchronized with the reference time server
Run the rdate daemon to update the system clock, thereby keeping it synchronized with the reference time server

Explicación

Pregunta 158 de 159

1

Which three statements are true about maintaining system parameters in Oracle Linux? (Choose three.)

Selecciona una o más de las siguientes respuestas posibles:

echo can be used to change values for various system parameters
sysctl -w can be used to change values for various system parameters
Changes made using echo are lost after rebooting the system
Changes made using sysctl -w are preserved after rebooting the system
Changes made to /etc/sysctl.conf take effect immediately after saving the file

Explicación

Pregunta 159 de 159

1

Examine the partition table:

Disk /dev/sdd: 107 MB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
NumberStartEndSizeTypeFileSystem Flags
11049KB79.7MB78.6MBPrimary

Which program can be used to add another partition on this device?

Selecciona una de las siguientes respuestas posibles:

fdisk
cfdisk
parted
kpartx

	Creado por Arturo Carmona hace alrededor de 6 años

My_tests Test sobre 100, creado por Arturo Carmona el 24/01/2019.

Pregunta 1 de 159

This MDADM output: Which two aspects can be determined from this output?

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 2 de 159

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 3 de 159

What is the main advantage of the Oracle Unbreakable Enterprise Kernel compared with the Red Hat compatible kernel?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 4 de 159

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 5 de 159

Which two software packages are prerequisites for enabling the configuration and use of a Network information Service (Nis) client?

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 6 de 159

Which two Statements are true concerning the configuration and use of cron and anacron?

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 7 de 159

You recently updated the strace package to the latest version as shown: What is the outcome of running this command?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 8 de 159

Which statement is true concerning the /etc/sysconfig directory and its files and subdirectories?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 9 de 159

Examine the routing table: Which three statements are true concerning the routing of IP packets?

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 10 de 159

You have a single network adapter called eth0. DEVICE = eth0 BOOTPROTO=DHCP HWADR=BC:305B:C5:63;F1 NM_CONTROLLED=no ONBOOT=YES TYPE=Ethernet PEERDNS=no UUID=C9dba2e8-9faf-4b77-bbe2-92dd81dda1f9 Which two statements are true concerning eth0 based on this configuration?

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 11 de 159

Which four statements are true about the proc and sysfs filesystem?

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 12 de 159

You want sendmail to deliver mail for these users: John.smith@acme.comto mailbox jsmith1 John.smith@foo.comto mailbox jsmith2 John.smith@bar.comto mailbox jsmith3 In which sendmail configuration database can this requirement be defined?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 13 de 159

What is the purpose of Setting AUTOINSTALL to YES /etc/uptrack.conf?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 14 de 159

Which two conditions should be met in order to successfully configure an openssh client on Oracle Linux?

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 15 de 159

Which three settings are required to configure an openLdap to use directory service provided by Ldap.example.com?

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 16 de 159

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 17 de 159

What happens if you reboot a Ksplice Uptrack-enabled system when the following conditions exist? 1. The Internet is unreachable due to a failing router. 2. The INSTALL_ON_REBOOT property is set to YES in /etc/uptrack/uptrack.conf.

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 18 de 159

Which two statements are true about administering the use of the Sudo command in Oracle Linux?

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 19 de 159

Which three statements are about the use of these files and directories by UPSTART?

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 20 de 159

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 21 de 159

You use the chkconfig command to administer one of the services on your Oracle Linux system: [root@FAROUT ~]# chkconfig vncserver off [root@FAROUT ~] # No changes have been made to the init script for the service. Which two statements are true regarding the effects of Issuing this command?

This MDADM output:

Which two aspects can be determined from this output?

You recently updated the strace package to the latest version as shown:

What is the outcome of running this command?

Examine the routing table:

Which three statements are true concerning the routing of IP packets?

You have a single network adapter called eth0.

DEVICE = eth0
BOOTPROTO=DHCP
HWADR=BC:305B:C5:63;F1
NM_CONTROLLED=no
ONBOOT=YES
TYPE=Ethernet
PEERDNS=no
UUID=C9dba2e8-9faf-4b77-bbe2-92dd81dda1f9

Which two statements are true concerning eth0 based on this configuration?

You want sendmail to deliver mail for these users:

John.smith@acme.comto mailbox jsmith1
John.smith@foo.comto mailbox jsmith2
John.smith@bar.comto mailbox jsmith3

In which sendmail configuration database can this requirement be defined?

What happens if you reboot a Ksplice Uptrack-enabled system when the following conditions exist?

1. The Internet is unreachable due to a failing router.
2. The INSTALL_ON_REBOOT property is set to YES in /etc/uptrack/uptrack.conf.

You use the chkconfig command to administer one of the services on your Oracle Linux system:

[root@FAROUT ~]# chkconfig vncserver off
[root@FAROUT ~] #

No changes have been made to the init script for the service.
Which two statements are true regarding the effects of Issuing this command?

Examine the partition table:

Disk /dev/sdd: 107 MB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Number StartEndSizeTypeFileSystemFlags
11049KB79.7MB78.6MBPrimary

Which program cannot be used to add another partition on this device?

You must remove the user harhest from your Oracle Linux system because the person has left the company:

User harhest has numerous files, directories, and a crontab.
You issue:

Userdel r harhest

Which three outcomes result from the execution of this command?

Match the rpm options with their functions:

1. - I a. replaces any older versions of package with the new package
2. - U b. upgrades packages, but only if an earlier version exists on your system
3. - F c. Uninstall the specified package
4. - e d. installs a new package

Examine the line from /etc/rsyslog.conf:

Mail.*-/var/log/maillog

Which statement correctly describes this rule?

Examine the extract of the /etc/nologin file and the /etc/pam.d/login file on server1:

[root@server1 ~] # cat /etc/nologin
bob
smith
[root@server1 ~] # cat /etc/pam.d/login
accountrequiredpam_nologin.so
accountincludesystem-auth

Which statement is true about users?

Examine the commands and output when trying to start OSWatcher Black Box.

Identify two recommended solutions to this problem.

You use the host command to find out about host name WAYOUT:

Which two statements are true?