A. The option to run firstboot was deselected during Oracle Linux installation. B. The system was installed with desktop graphical packages and rebooted and the firstboot utility ran successful. C. Firstboot never ran in any run level because the service is turned off for all run levels. D. The system was installed without selecting desktop graphical packages, thereby disabling firstboot from running.
A. The option to run firstboot was deselected during Oracle Linux installation.
Firstboot is set to off for all levels.
Example:
The rm command below remove or delate the firstboot file in order to make sure the firstboot program running when we restart or reboot the Fedora machine.
[root@fedora ~]# rm /etc/sysconfig/firstboot
rm: remove regular file `/etc/sysconfig/firstboot'? y [root@fedora ~]#
Then check and make sure that firstboot program or firstboot service is run when your Fedora startup/boot up.
Which four statements are true concerning the various stages of GRUB bootloader in Oracle Linux?
A. GRUB stage1 must always load stage1_5. B. GRUB stage1_5 is used to process the /boot/grub/grub.conf file. C. GRUB stage1_5 loads GRUB stage2. D. GRUB stage1 may load GRUB stage2 directly. E. GRUB stage1 provides support for several different filesystems, enabling stage1 to load stage1_5. F. GRUB stage1_5 provides support for several different filesystems, enabling stage1_5 to load stage2. G. GRUB stage2 is used to process the /boot/grub/grub.conf file.
C. GRUB stage1_5 loads GRUB stage2. D. GRUB stage1 may load GRUB stage2 directly. E. GRUB stage1 provides support for several different filesystems, enabling stage1 to load stage1_5. G. GRUB stage2 is used to process the /boot/grub/grub.conf file.
CD: Stage 1 code is stored in the MBR. This code contains a block list that points to the next stage of GRUB, which is either stage1_5 or stage 2, depending on the file system type. E(not F): Stage1_5 code allows GRUB to interpret different
types of file system G (not B): Stage 2 code reads /boot/grub/grub.conf to determine how to load the kernel.
Incorrect:
Not A:. For some file system types such as ext4, GRUB does not need to load stage1_5.
Question 53:
Which two statements are true about the installation of certain components of asmlib in Oracle Linux 6?
A. The asmlib kernel module is included in the Red Hat-compatible kernel. B. The asmlib kernel module is included in the Unbreakable Enterprise Kernel (UEK). C. The asmlib kernel module must be installed separately when using the Unbreakable Enterprise Kernel (UEK). D. The asmlib oracleasm-support package is installed as part of the Red Hat-compatible kernel package. E. The asmlib oracleasm-support package is included as part of the Unbreakable Enterprise Kernel (UEK) package. F. The asmlib oracleasm-support rpm must be installed separately when using the Unbreakable Enterprise Kernel (UEK).
B. The asmlib kernel module is included in the Unbreakable Enterprise Kernel (UEK). F. The asmlib oracleasm-support rpm must be installed separately when using the Unbreakable Enterprise Kernel (UEK).
B: The oracleasm kernel driver is built into the Unbreakable Enterprise Kernel for Oracle Linux 6 and does not need to be installed manually.
F: All ASMLib installations require the oracleasmlib and oracleasm-support packages appropriate for their machine.
The oracleasm-support package can be downloaded from the Unbreakable Linux Network (ULN) if you have an active support subscription, or from http://public-yum.oracle.com if you do not.
Incorrect:
not A: The oracleasm kernel driver for the 64-bit (x86_64) Red Hat Compatible Kernel for Oracle Linux 6 can be installed manually.
Question 54:
Identify two true statements about the nice command.
A. It may the used to raise the priority of existing processes. B. It may be used to set the initial priority of a process. C. A higher nice value makes a process run at a lower priority. D. By default, a normal user can make a process run at a higher priority. E. It may be used to lower the priority of existing processes.
C. A higher nice value makes a process run at a lower priority. E. It may be used to lower the priority of existing processes.
nice - run a program with modified scheduling priority. Synopsis
nice [OPTION] [COMMAND [ARG]...] Description
Run COMMAND with an adjusted niceness, which affects process scheduling. With no COMMAND, print the current niceness. Nicenesses range from -20 (most favorable scheduling) to 19 (least favorable).
Question 55:
Select the two keywords used in /etc/rsyslog.conf that perform these two tasks: (Choose two.)
1.
load modules
2.
implement log message formatting
A. template B. $ModLoad C. $template D. $Load E. ModLoad
A. template B. $ModLoad
Question 56:
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?
A. Files in the harhest home directory are removed. B. The home directory of harhest is removed. C. Files owned by narhest in any directory are removed. D. All directories owned by harhest are removed. E. The /var/spool/mail/harhest mailbox is removed. F. crontab /var/spool/cron/harhest is removed.
A. Files in the harhest home directory are removed. B. The home directory of harhest is removed. E. The /var/spool/mail/harhest mailbox is removed.
The userdel command modifies the system account files, deleting all entries that refer to the user name LOGIN. The named user must exist.
parameter r -r, --remove Files in the user's home directory will be removed along with the home directory itself and the user's mail spool. Files located in other file systems will have to be searched for and deleted manually.
Question 57:
Identify three features/functions enabled by using asmlib?
A. Application-to-disk data integrity checking B. Device naming persistence C. Replaces udev for all files used by any application D. Device ownership persistence E. Multipathing driver for luns used for asmdisks F. locking facility for using luns in an ASM cluster
D. Device ownership persistence E. Multipathing driver for luns used for asmdisks F. locking facility for using luns in an ASM cluster
Question 58:
Match the rpm options with their functions:
1. 璉 a. replaces any older versions of package with the new package
2. 璘 b. upgrades packages, but only if an earlier version exists on your system
3. 璅 c. Uninstall the specified package
4. 璭 d. installs a new package
A. 1-d, 2-a, 3-b, 4-c B. 1-d, 2-b, 3-a, 4-c C. 1-a, 2-c, 3-b, 4-d D. 1-a, 2-b, 3-c, 4-d
This upgrades or installs the package currently installed to a newer version. This is the same as install, except all other version(s) of the package are removed after the new package is installed.
This will upgrade packages, but only if an earlier version currently exists.
Question 59:
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?
A. The vncserver service is shut down. B. The vncserver service configuration is disabled only for those run levels for which it is currently enabled. C. The vncserver service configuration is disabled for run levels 2, 3, 4 and 5. D. The vncserver service remains in the same state it was in before the command was issued. E. The vncserver service configuration is disabled for run levels 3 and 5 only.
A. The vncserver service is shut down. B. The vncserver service configuration is disabled only for those run levels for which it is currently enabled.
Which two statements are true about the MD0 RAID set?
A. MDO is a stripped mirror RAID set. B. MDO is a mirrored stripped RAID set. C. If MD1 fails, so will MDO. D. If MD2 fails, MDO too fails. E. If /dev/sdd1 and /dev/sdg1 fail, MDO fails.
A. MDO is a stripped mirror RAID set. D. If MD2 fails, MDO too fails.
Explanation: MD0 is active and raid1. Md2 and md1 is spare. So it is a stripped mirror RAID set. Since both depends on MD0, if MD2 fails, MD0 will fail too. Reference: http://linuxwiki.de/proc/mdstat
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