4013226
Descripción
Test por heriveltogabriel, actualizado hace más de 1 año
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Creado por heriveltogabriel
hace alrededor de 9 años
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Pregunta 1
Pregunta
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?
Respuesta
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The file system was exported on host o16 using the ROOT_SQUASH option.
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The /export filesystem was mounted with the NOEXEC option on host o16.
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The filesystem mounted on /mnt was mounted with the NOEXEC option.
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The filesystem was exported on host o16 by using the NO_ROOT_SQUASH option.
Pregunta 2
Pregunta
Which two software packages are prerequisites for enabling the configuration and use of a Network information Service (Nis) client?
Respuesta
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nis-tools
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slapi-nis
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ypbind
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nisserv
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nisbind
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yp-tools
Pregunta 3
Pregunta
<-- You recently updated the strace package to the latest version as shown:
What is the outcome of running this command?
Respuesta
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It downgrades the strace package to version 4.5.19-1.6.e16.
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It downgrades strace package to version 4.5.19-1.11.e16_3.2.
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It fails with an error because you cannot downgrade a package using the yum command.
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It fails with an error because there are multiple versions available to which Yum can downgrade the strace package.
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It will prompt you to select a version of the strace package that you want to downgrade.
Pregunta 4
Pregunta
Which two Statements are true concerning the configuration and use of cron and anacron?
Respuesta
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Anacron jobs are used to make sure cron jobs run if the system had been down when they were meant to run.
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All crontabs are held in the /etc/cron.d directory.
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Cron jobs may run as frequently as once a minute.
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Anacron jobs may run as frequently as once a minute.
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The crond daemon looks for jobs only in /etc/crontab.
Pregunta 5
Pregunta
Which statement is true concerning the /etc/sysconfig directory and its files and subdirectories?
Respuesta
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The contents are always the same for a specific version of the Oracle Linux Kernel.
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The file /etc/sysconfig/init is used by upstart to control the attributes of the tty devices that get started.
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The directory /etc/sysconfig/network-scripts contains files that must not be modified while the network is up.
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The files only contain default values for certain daemon processes.
Pregunta 6
Respuesta
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Traffic to 192.168.180.180 is routed via eth1.
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Traffic to 192.168.180.240 is routed via eth1.
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Traffic to 192.168.0.42 is routed via eth2.
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Traffic to 192.168.42.42 is routed via eth2.
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Traffic to 192.168.42.42 is routed via eth0.
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Traffic to 192.168.180.180 is routed via eth0.
Pregunta 7
Pregunta
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
Respuesta
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DHCP is used to obtain a lease on an IP address.
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The dhclient command may only be used to obtain a lease at boot time.
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dhclient does not override the contents of /etc/resolv.conf.
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DNS is not used to resolve host names for this adapter.
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dhclient overrides the contents of /etc/resolv.conf.
Pregunta 8
Pregunta
Which four statements are true about the proc and sysfs filesystem?
Respuesta
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The sysfs filesystem contains information about processes.
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The proc filesystem contains information about CPUs
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The proc filesystem contains information about memory.
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The sysfs filesystem contains information about CPUs.
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The sysfs filesystem contains information about memory.
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The proc filesystem contains information about the installer parameters.
Pregunta 9
Pregunta
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?
Respuesta
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/etc/aliases
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/etc/mail/userdb
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/etc/mail/virtusertable
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/etc/mail/domaintable
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/etc/mail/genericstable
Pregunta 10
Pregunta
What is the purpose of Setting AUTOINSTALL to YES /etc/uptrack.conf?
Respuesta
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To install Ksplice kernel updates during the reboot of a system
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To install updates to the Ksplice software Itself during a system reboot
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To enable the uptrack cron job to install Ksplice kernel updates whenever they become available
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To enable Ksplice to automatically install the kernel rpm whenever new Ksplice kernel updates become available
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To enable Ksplice to install Ksplice kernel updates and new kernel RPMS whenever they become available
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