Cada pergunta deste Quiz é cronometrada.
You want to disable the network device eht0. Which command can you use?
ifconfig halt eth0
ipconfig eth0 halt
ip link set eth0 down
ip param set eth0 halt
You wonder which installed RPM package the /etc/exports file belongs to. Which command will give you the desired information?
rpm -f /etc/exports
rpm -qf /etc/exports
rpm -ql /etc/exports
rpm --provides /etc/exports
Which is the main configuration file for logrotate?
/etc/logrotate
/etc/logr.conf
/etc/cron/logrotate
/etc/logrotate.conf
You want to delete all data on the second hard drive (/dev/hdb). Which command accomplishes this?
rm /dev/hdb
dd if=/dev/zero of=/dev/hdb bs=100k
dd of=/dev/zero if=/dev/hdb bs=100k
dd if=/dev/zero of=/dev/hdb count=1 bs=1024
You want to copy the mytext file from your computer to the /tmp/ directory on the remote computer da20.digitalairlines.com. Which command would you use to accomplish this?
ssh mytext da20.digitalairlines.com:/tmp
scp da20.digitalairlines.com:/tmp mytext
scp mytext da20.digitalairlines.com:/tmp
sftp mytext da20.digitalairlines.com:/tmp
Which statement about a differential backup is correct?
The use of differential backups is limited to backups on tape roboters.
To restore a differential backup, you need tha last differential backup only.
To restore a differential backup, you need the last full backup and the last differential backup that was made since the last full backup.
The amount of data that needs to be backed up with each differential backup depends only on the amount of data changed since tha last differential backup.
Which statement about the Set User ID bit on executable files is correct?
The SUID bit has no security implications.
The SUID bit on executables has no effect; it is only relevant when set on directories.
The SUID bit makes it more difficult to exploit any potential vulnerabilities in the program.
The SUID should only be set when really needed and only on applications that are well tested
You are viewing the manual page of crontab, but it does not caontain the information you are looking for. You suspect there is another crontab manual page. Which command could you use to find out if another crontab manual page exists? (Choose 2)
man a crontab
whatis crontab
man -k crontab
man --next crontab
man --showall crontab
You want to know which files are contained in the hugin-0.6.1-2.2.i586.rpm RPM package, which has not yet been installed. Which command will give you this information?
rpm -f hugin-0.6.1-2.2.i586.rpm
rpm -qpf hugin-0.6.1-2.2.i586.rpm
rpm -qpl hugin-0.6.1-2.2.i586.rpm
rpm --provides hugin-0.6.1-2.2.i586.rpm
You created a script (/root/bin/backup.sh) that backups up your files when executed. Using cron, you want to executed ths script once every Saturday at 3:00 pm. Which line would you have to enter after invoking crontab -e in a terminal window?
15 0 * * 6 /root/bin/backup.sh
0 15 * * 6 /root/bin/backup.sh
0 15 * 6 * /root/bin/backup.sh
15 0 * * 6 root /root/bin/backup.sh
While in insert mode, how do you save a file and close vi?
Press Esc and :q
Press Esc and :w
Press Esc and :wq
Press Esc and :zz
You want to install the ethereal RPM package that is available on the SUSE Linux Enterprise Server 10 installation media. Which command install the ethereal package, and resolves dependencies as needed?
rpm -i ethereal
yast -i ethereal
yast -l ethereal
rpm -U ethereal
Which command can be used to view the inode assigned to a filename?
ls -i
fsck -h i
inode --list
cat /proc/inodes
Which lists of wireless networks are kept by NetworkManager?
Preferred list and avoid list
User list and encryption list
Trusted list and preferred list
Trusted list and untrusted list
What is the effect of selecting the optoin "Enable IP Forwarding" in the routing configuration is YaST?
IP packets that do have this host as their destination are routed to another host.
IP packets that do not have this host as their destination are filtered according to the firewall rules.
IP packets that do have this host as their destination are dropped to protect the host from attacks.
IP packets that do not have as their destination are transferred from one network connected to he host to another network connected to this host, according to the routing table.
You want to boot your system to runlevel 3. Which option do you have enter at the GRUB boot manager dialog?
3
init=3
boot=3
runlevel=3
You would like to run command1 and then command2, whether or not command1 completed successfully. Which command accomplishes this task?
command1 | command2
command1 ; command2
command1 > command2
command1 & command2
You want to find out which jobs are currently queued in the laser print queue on your CUPS print server. Which command displays the information you need?
lpstat -t
lp -P laser
lpq -P laser
lpadmin -P laser
In which is the host name of a Linux computer configured? (Hint: You do not need to include the entire path.) /etc/HOSTNAME
You want to view the status (loked, valid password, etc.) of the account tux. Which command displays the desired information?
passwd -L tux
passwd -v tux
passwd -p tux
passwd -S tux
In which file are global configurations for users who use bash as their login shell set?
/etc/bashrc
/etc/bash.cf
/etc/bash.conf
/etc/bash.bashrc
Which command displays the value stored in the $MYVAR variable?
less MYVAR
cat $MYVAR
echo MYVAR
echo $MYVAR
Which file contains the configuration information of the print queues available on your CUPS server?
The /etc/printcap file
The /etc/sysconfig/cups file
The /etc/cups/cups.conf file
The /etc/cups/printers.conf file
How can you list the ACLs (if there are any) of a file test?
ls -l test
lsacl test
getfacl test
ls -l --acl test
Routes to the directly connected network are automatically set up when a device is started. All other routes are saved in which configuration file?
/etc/route
/etc/routes
/etc/routes.conf
/etc/network/routes
/etc/sysconfig/routes
/etc/sysconfig/network/routes
What information do you need to set up an LDAP client? (Choose 4.)
LDAP version
LDAP base DN
Kind of encrytion
Synchronization frequency
Address of the LDAP server
File name of the LDAP database
What is the minimum number of partitions required by a SLES 10 system?
None
1
2
4
What is the purpose of the ssh-agent command?
ssh-agent is a program that helps configure the ssh daemon.
ssh-agent is used to fecth public keys from machines within your network.
ssh-agent is used to avoid typing the passphrase for your key on each login.
ssh-agent is a program that checks for machnes in the network that have an ssh daemon running.
Using the nice command, what is the highest priority a normal user can assing to a process?
-20
-19
0
19
20
99
Which command can you use to create a Reiser file system on the sda6 partition? (Choose 2.)
mkreiserfs /dev/sda6
fdisk.reiserfs /dev/sda6
make.reiserfs /dev/sda6
fdisk -t reiserfs /dev/sda6
mkfs -t reiserfs /dev/sda6
You have limited access to the /admin directory of the web interface of your CUPS server with the following statement in /etc/cups/cups.conf: <Location /admin> AuthType BasicDigest
AuthClass Group AuthGroupName sys
Order Deny, Allow
Deny From All Allow From 127.0.0.1 </Location> To allow the cupsadmin user to access the /admin directory when connecting from localhost, how do you create the cupsadmin user and set his password?
passwd cupsadmin
lppasswd cupsadmin
passwd --cups cupsadmin
lppasswd -a cupsadmin -g sys
You have a test directory with the following permissions: rwx------ You want to change the permissions to the following values: r-xr-xr-x. Which command accomplishes this?
chmod 777 test
chmod a=rx test
chmod u=rx,a-rx test
chmod u+w,g+rx,o+rx test
How do you activate an ACL when mounting a file system manually?
mount --acl /dev/hda5 /data
mount -f acl /dev/hda5 /data
mount -o acl /dev/hda5 /data
mount --use-acl /dev/hda5 /data
chmod u-w,g+rx,o+rx test
What does the following line of the sudo configuration file mean? geeko ALL=/sbin/shutdown
All users are allowed to shut down the computer.
It allows the user geeko to shut down the computer.
All users (except geeko) are allowed to shut down the computer.
User geeko is allowed to shut down the computer with name ALL.
All users of the computer with the name geeko are allowed to shut down the computer.
What is the key characteristic of the root account?
The user name root
The User ID (UID) 0
The Security Identifier (SID)
The Universally Unique Identifier (UUID)
Which statement about an incremental backup is correct?
The use of incremental backups is limited to backups on tapes.
To restore an incremental backup, you need the last incremental backup only.
To restore an incremental backup, you need the last full backup and incremental backup that was made since the last full backup.
The amount of data that needs to be backed up with each incremental backup depends only on the amount of data changed the last incremental backup.
Which options are PAM module types that can be used in a PAM configuration file? (Choose 4.)
key
auth
card
account
session
password
Which command shows you the default shell of a user?
w user
id user
who user
finger user
Suppose you change from your current runlevel 5 to the new runlevel 3. Which statement is correct?
Nothing will happen at all.
If there is a K* link for a certain service in /etc/init.d/rc5.d/ but no corresponding S* link l /etc/init.d/rc3.d/, nothing will happen.
If there is no K* link for a certain service in /etc/init.d/rc5.d/ but there is an S* link in /etc/init.d/rc3.d/, the service is started.
If there is a K* link for a certain service in /etc/init.d/rc5.d/ and there is an S* link in /etc/init.d/rc3.d/, the service is stopped and started again.
In a terminal window, which command can you enter to change to your home directory (/home/geeko)? (Choose 2.)
cd
cd ~
cd -h
cd home
cd --homedir
You have a file named file1 and you want to create a symbolic link named link-to-file1 to the file. In a terminal window, which command accomplishes what you want? (Choose 2.)
ln file link-to-file1
ln link-to-file1 file1
ln -s file1 link-to-file1
ln -s link-to-file1 file1
cp -s file1 link-to-file1
mv -s file1 link-to-file1
Which are configuration files of syslog-ng? (Choose 3.)
/etc/logging
/etc/sysconfig/log
/etc/log/syslog-ng
/etc/sysconfig/syslog
/etc/log/syslog-ng.conf
/etc/syslog-ng/syslog-ng.conf
/etc/syslog-ng/syslog-ng.conf.in
The useradd command s used to create new users. Which file contains information on the primary group, shell and other parameters to be used by useradd when specified on the command line?
/etc/profile
/etc/passwd
/etc/shadow
/etc/default/useradd
What does the following command do? tar -tzvf /tmp/backup.tgz etc/HOSTNAME
It extracts the etc/HOSTNAME file from the /tmp/backup.tgz archive
It includes the etc/HOSTNAME file in the /tmp/backup.tgz archive
It produces an error message because the options are in the wrong sequence.
It displays a line similar to the following, but otherwise does nothing: -rw-r--r-- root/root 23 2005-03-11 14:20 etc/HOSTNAME
As root, you entered the runlevel command. What does the following output indicate? N5
You are in runlevel 5. A previos runlevel is not available.
You are in runlevel 5. A previous runlevel was 3 (network).
You are in runlevel 3 (network). The system is changing now to runlevel 5.
You are currently in no runlevel. The system is changing now to runlevel 5
You need to find the files in the /etc directory that contain the word DocumentRoot. In a terminal window, which command will help you find it?
discover DocumentRoot /etc
grep -r DocumentRoot /etc/*
search -r DocumentRoot /etc/*
find /etc -content DocumentRoot
You can schedule jobs to be executed by cron in several ways. Which directories are used for scripts that are to be executed at regular intervals? (Choose 2.)
/etc/cron.d/
/etc/crontabs/
/etc/cron.daily/
/var/spool/cron/tabs
As a normal user, such as geeko, you use the lpoptions command to change printer options, such as the page size. To which file are these options saved.
~/.bashrc
~/.lpoptions
/etc/cups/lpoptions
/etc/sysconfig/cups
Which command displays cpu and input/output statics for device and partitions?
siga
sitar
fdisk
lspci
iostat
hwinfo
hdparm
What is the result of the following command? (Choose 2.)
dd if=/dev/zero of=/dev/hdd bs=512 count=1
Overwrites an existing partition table
Creates a LVM partition of 512 blocks
Backs up the /dev/zero and /dev/hdd files
Writes zeros in the firts 512 bytes of the firts hard disk block
Assings the physical volume zero to the logical volume hdd
You do not want to see any error messages when using the find command; you want to see only the results. Which command accomplishes this task?
find /etc -name "*conf" 0>/dev/null
find /etc -name "*conf" 1>/dev/null
find /etc -name "*conf" 2>/dev/null
find /etc -name "*conf" 3>/dev/null
In the terminal window, your current working directory is /home/geeko. You want to change to the /tmp directory. Which command will make the desired change of directores? (Choose 2.)
cd tmp
cd /tmp
cd ./tmp
cwd /tmp
cd ../tmp
cd ../../tmp
Why are the noauto and users options used with /etc/fstab?
A normal user is not allowed to access this partition.
They allow any user to mount and unmount a partition.
They specify the partitions that are bootable by a user.
They specify the partitions that are not bootable by a user.
You have a /tmp/data directory containing the files .file, file1 and file2. You want to copy the file1 and file2 files only to the /data-old directory that already exists. In a terminal window, which command accomplishes this?
cp /tmp/data /data-old
cp /tmp/data/. /data-old
cp /tmp/data/* /data-old
cp /tmp/data/? /data-old
You entered the following as a boot option in the GRUB boot screen: init=/bin/bash What does the option mean?
The bash is used as the default shell.
Linux starts without a graphical environment.
The system is started directly in a bash shell. You are automatically logged in as root without being asked for a password.
The system is started directly in a bash shell. You are automatically logged in as default user without being asked for a password.
The system is started directly in a bash shell. You are automatically asked for the root password before you are logged in as root.
The system is started directly in a bash shell. You are automatically asked for the default user's password before you are logged in.
You want to view tha last 20 lines of the /var/log/messages file and any new lines that are subsequently added by syslog to this file. Which command would you use?
tail -20f /var/log/messages
end -20f /var/log/messages
less -20f /var/log/messages
follow -20 /var/log/messages
Which RAID level is described by the following sentence? This level improves the performance of your data access; however, it does not provide redundancy.
RAID 0
RAID 1
RAID 4
RAID 5
RAID 6
To which process does the process ID 1 always belong?
init
boot
cron
X server
kernel (vmlinuz)
Which command would you use to star the xeyes program in the background?
xeyes &
xeyes &&
bg | xeyes
xeyes -bg
xeyes | bg
xeyes > bg
Which command creates the .depend.boot, .depend.start, and .dependn.stop files in /etc/init.d/?
insserv
mkinitrd
mkreiserfs
Whch command can you use to check an ext2/ext3 file system for a correct superblock, faulty data blocks, or faulty allocation of data blocks?
df
du
e2fsck
reiserfsck
Which statements about the LVM components are correct? (Choose 2.)
A volumen group is aprt of a logical volume.
Logical volumes are grouped in a master group.
A volume group always consist of one physical volume.
A physical volume can be a partition or an entire hard disk.
A volume group can be reduced in size by removing physical volumes.
The operating system accesses the volume groups like conventional physical partitions.
When SUSE Linux Enterprise Server 10 starts, some boot messages scroll by on the screen quickly. What is the name of the file in /var/log/ where these messages are stored?
/var/log/boot.msg
