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You want to display the value of a shell variable called service after assigning a value as shown:
SERVICE =ACCT S
Which two settings will display the name of the variable and its value?
A. set | grep service
B. echo $SERVICE
C. env | grep SERVICE
D. env $SERVICE
E. set $SERVICE
Correct Answer: BC
C: env – set the environment for command invocation
If no utility operand is specified, the resulting environment shall be written to the standard output, with one name= value pair per line.
Examine these statements and their output taken right after successful install of Oracle Linux:
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?
A. The expiration date of the breemar account
B. The number of days after the breemar account is locked, that it becomes expired
C. The maximum number of days that must elapse between password changes by the user breemar before the password becomes invalid
D. The number of days after the breemar account is locked, that it becomes unlocked
E. The minimum number of days that must elapse between password changes by the user breemar
F. The maximum number of failed login attempts on the breemar account before the account is locked
Correct Answer: ACE
A: chage -E, –expiredate EXPIRE_DATE
Set the date or number of days since January 1, 1970 on which the user\’s account will no longer be accessible.
CE: You need to use chage command to setup password aging. The chage command changes the number of days between password changes and the date of the last password change. This information is used by the system to determine when a user must change his/her password.
Which four statements are true about software on the Oracle Public YUM server?
A. It contains Oracle Linux installation ISO images.
B. It contains Oracle Linux binary RPM packages.
C. It contains Oracle Linux errata packages.
D. It contains Oracle Linux source RPM packages.
E. It contains beta Oracle Linux software packages.
F. It does not contain Unbreakable Enterprise Kernel packages.
Correct Answer: BCDF
The Oracle public yum server offers a free and convenient way to install the latest Oracle Linux packages as well as packages from the Oracle VM installation media via a yum client. Oracle provides all errata and updates for Oracle Linux via the Public Yum service, which includes updates to the base distribution, but does not include Oracle-specific software.
F: By default, all new installations of Oracle Linux 6 Update 5 are automatically configured to use the public yum update service. If you subsequently register the system with ULN, the public yum service is automatically disabled.
This MDADM output:
Which two aspects can be determined from this output?
A. A device failed and has been removed from this RAID set.
B. It is no longer possible to write to this RAID set.
C. Read and write performance is no longer optimal on this RAID set.
D. This RAID set was built without a spare device.
E. Only Write performance is no longer optimal on this RAID set.
Correct Answer: AD
Examine the command on its output: [[email protected] ~] # modprobe 璿 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?
A. It will load the nfs module if all the modules upon which it depends have been loaded.
B. It displays the dependency resolution for the nfs module and loads all the modules upon which nfs depends before loading the nfs module.
C. It verifies that the nfs module and all other modules that depend on the nfs module are installed.
D. It displays the dependency resolution that would occur if the nfs module were to be loaded using modprobe nfs.
E. It only loads the nfs module if all the modules upon which it depends have not been loaded yet.
What is the main advantage of the Oracle Unbreakable Enterprise Kernel compared with the Red Hat compatible kernel?
A. It is more secure and, therefore, more difficult to hack.
B. It has a lower Mean Time Between Failures.
C. It provides higher availability for applications by reducing Mean Time to Recovery.
D. It scales better for more CPUS, memory, and Infiniband network connections.
Correct Answer: D
The Unbreakable Enterprise Kernel, for those who want to leverage the latest features from mainline Linux and boost performance and scalability. The Red Hat Compatible Kernel, for those who prefer strict Red Hat kernel ABI (kABI) compatibility.
Examine this output: # df 璽 nfs Filesystem Size Used Avail Use% Mounted on
In which sendmail configuration database can this requirement be defined?
Correct Answer: C
This database file maps mail addresses for virtual domains and users to real mailboxes. These mailboxes can be local, remote, aliases defined in /etc/mail/aliases, or files. This allows multiple virtual domains to be hosted on one machine.
The following example demonstrates how to create custom entries using that format: