Oracle Linux 11 a 20

Beschreibung

Quiz am Oracle Linux 11 a 20, erstellt von heriveltogabriel am 11/11/2015.
heriveltogabriel
Quiz von heriveltogabriel, aktualisiert more than 1 year ago
heriveltogabriel
Erstellt von heriveltogabriel vor etwa 9 Jahre
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Zusammenfassung der Ressource

Frage 1

Frage
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?
Antworten
  • 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.

Frage 2

Frage
Which two software packages are prerequisites for enabling the configuration and use of a Network information Service (Nis) client?
Antworten
  • nis-tools
  • slapi-nis
  • ypbind
  • nisserv
  • nisbind
  • yp-tools

Frage 3

Frage
<-- You recently updated the strace package to the latest version as shown: What is the outcome of running this command?
Antworten
  • 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.

Frage 4

Frage
Which two Statements are true concerning the configuration and use of cron and anacron?
Antworten
  • 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.

Frage 5

Frage
Which statement is true concerning the /etc/sysconfig directory and its files and subdirectories?
Antworten
  • 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.

Frage 6

Frage
< -- Examine the routing table:
Antworten
  • 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.

Frage 7

Frage
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
Antworten
  • 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.

Frage 8

Frage
Which four statements are true about the proc and sysfs filesystem?
Antworten
  • 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.

Frage 9

Frage
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?
Antworten
  • /etc/aliases
  • /etc/mail/userdb
  • /etc/mail/virtusertable
  • /etc/mail/domaintable
  • /etc/mail/genericstable

Frage 10

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