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Q1. - (Topic 1)
Which of the following statements is correct when talking about /proc/?
A. All changes to files in /proc/ are stored in /etc/proc.d/ and restored on reboot.
B. All files within /proc/ are read-only and their contents cannot be changed.
C. All changes to files in /proc/ are immediately recognized by the kernel.
D. All files within /proc/ are only readable by the root user.
Answer: C
Q2. - (Topic 1)
Which run levels should never be declared as the default run level when using SysV init? (Choose TWO correct answers.)
A. 0
B. 1
C. 3
D. 5
E. 6
Answer: A,E
Q3. - (Topic 1)
Which of the following are init systems used within Linux systems? (Choose THREE correct answers.)
A. startd
B. systemd
C. Upstart
D. SysInit
E. SysV init
Answer: B,C,E
Q4. - (Topic 3)
Which of the following commands will NOT update the modify timestamp on the file /tmp/myfile.txt?
A. file /tmp/myfile.txt
B. echo "Hello" >/tmp/myfile.txt
C. sed -ie "s/1/2/" /tmp/myfile.txt
D. echo -n "Hello" >>/tmp/myfile.txt
E. touch /tmp/myfile.txt
Answer: A
Q5. - (Topic 4)
Creating a hard link to an ordinary file returns an error. What could be the reason for this?
A. The source file is hidden.
B. The source file is read-only.
C. The source file is a shell script.
D. The source file is already a hard link.
E. The source and the target are on different filesystems.
Answer: E
Q6. - (Topic 3)
Which of the following commands can be used to create a USB storage media from a disk image?
A. gdisk
B. dd
C. cc
D. fdisk
E. mount
Answer: B
Q7. - (Topic 3)
What command will generate a list of user names from /etc/passwd along with their login shell?
A. column -s : 1,7 /etc/passwd
B. chop -c 1,7 /etc/passwd
C. colrm 1,7 /etc/passwd
D. cut -d: -f1,7 /etc/passwd
Answer: D
Q8. - (Topic 4)
In order to display all currently mounted filesystems, which of the following commands could be used? (Choose TWO correct answers.)
A. cat /proc/self/mounts
B. free
C. mount
D. lsmounts
E. cat /proc/filesystems
Answer: A,C
Q9. - (Topic 4)
Instead of supplying an explicit device in /etc/fstab for mounting, what other options may be used to identify the intended partition? (Choose TWO correct answers.)
A. FIND
B. ID
C. LABEL
D. NAME
E. UUID
Answer: C,E
Q10. - (Topic 3)
What is the default nice level when a process is started using the nice command?
A. -10
B. 10
C. 20 D. 0
Answer: B
Q11. - (Topic 2)
Which of the following commands overwrites the bootloader located on /dev/sda without overwriting the partition table or any data following it?
A. dd if=/dev/zero of=/dev/sda bs=512
B. dd if=/dev/zero of=/dev/sda bs=512 count=1
C. dd if=/dev/zero of=/dev/sda bs=440 count=1
D. dd if=/dev/zero of=/dev/sda bs=440
Answer: C
Q12. - (Topic 3)
What is the purpose of the Bash built-in export command?
A. It allows disks to be mounted remotely.
B. It runs a command as a process in a subshell.
C. It makes the command history available to subshells.
D. It sets up environment variables for applications.
E. It shares NFS partitions for use by other systems on the network.
Answer: D
Q13. - (Topic 3)
Which character, added to the end of a command, runs that command in the background
as a child process of the current shell?
A. !
B. +
C. &
D. %
E. #
Answer: C
Q14. - (Topic 3)
Which of the following sequences in the vi editor saves the opened document and exits the editor? (Choose TWO correct answers.)
A. esc ZZ
B. ctrl :w!
C. esc zz
D. esc :wq!
E. ctrl XX
Answer: A,D
Q15. - (Topic 4)
Which of the following is the device file name for the second partition on the only SCSI drive?
A. /dev/hda1
B. /dev/sda2
C. /dev/sd0a2
D. /dev/sd1p2
Answer: B
Q16. - (Topic 2)
Which of the following is correct when talking about mount points?
A. Every existing directory can be used as a mount point.
B. Only empty directories can be used as a mount point.
C. Directories need to have the SetUID flag set to be used as a mount point.
D. Files within a directory are deleted when the directory is used as a mount point.
Answer: A
Q17. CORRECT TEXT - (Topic 3)
Which signal is missing from the following command that is commonly used to instruct a daemon to reinitialize itself, including reading configuration files?
killall -s _______ daemon
Answer: HUP, SIGHUP, 1
Q18. - (Topic 3)
Which of the following commands kills the process with the PID 123 but allows the process to "clean up" before exiting?
A. kill -PIPE 123
B. kill -KILL 123
C. kill -STOP 123
D. kill -TERM 123
Answer: D