101-400 lab（11 to 20） for IT professionals: Dec 2017 Edition
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Q11. - (Topic 4)
Which of the following commands changes the number of days before the ext3 filesystem on /dev/sda1 has to run through a full filesystem check while booting?
A. tune2fs -d 200 /dev/sda1
B. tune2fs -c 200 /dev/sda1
C. tune2fs -i 200 /dev/sda1
D. tune2fs -n 200 /dev/sda1
E. tune2fs --days 200 /dev/sda1
Q12. CORRECT TEXT - (Topic 2)
Which option to the yum command will update the entire system? (Specify ONLY the option name without any additional parameters.)
Answer: update, upgrade
Q13. CORRECT TEXT - (Topic 2)
Which command will disable swapping on a device? (Specify ONLY the command without any path or parameters.)
Answer: swapoff, /sbin/swapoff
Q14. - (Topic 1)
Which of the following options for the kernel's command line changes the systemd boot target to rescue.target instead of the default target?
Q15. - (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
Q16. - (Topic 3)
Which of the following are valid stream redirection operators within Bash? (Choose THREE correct answers.)
Q17. CORRECT TEXT - (Topic 2)
Which world-writable directory should be placed on a separate partition in order to prevent users from being able to fill up the / filesystem? (Specify the full path to the directory.)
Answer: /tmp, tmp, /var/tmp, /tmp/, /var/tmp/
Q18. - (Topic 3)
Which of the following commands can be used to determine how long the system has been running? (Choose TWO correct answers.)
D. uname -u
E. time –up
Q19. - (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.
Q20. - (Topic 3)
In a nested directory structure, which find command line option would be used to restrict the command to searching down a particular number of subdirectories?