101-500 Free Practice Test

- (Exam Topic 5)
Which command must be entered before exiting vi to save the current file as filea.txt?

1. A. %s filea.txt
2. B. %w filea.txt
3. C. :save filea.txt
4. D. :w filea.txt
5. E. :s filea.txt

Correct Answer: D

- (Exam Topic 3)
Which of the following explanations are valid reasons to run a command in the background of your shell?

1. A. The command does not need to execute immediately.
2. B. The command has to run immediately but the user needs to log out.
3. C. The system is being shut down and the command needs to restart execution immediately after the reboot.
4. D. The command can run at a lower priority than normal commands run on the command line.

Correct Answer: B

- (Exam Topic 5)
Which program runs a command in specific intervals and refreshes the display of the program’s output? (Specify ONLY the command without any path or parameters.)
Solution:
watch

Does this meet the goal?

1. A. Yes
2. B. No

Correct Answer: A

- (Exam Topic 2)
When removing a package, which of the following dpkg options will completely remove the files including configuration files?

1. A. --clean
2. B. --delete
3. C. --purge
4. D. –remove

Correct Answer: C

- (Exam Topic 3)
Which of the following commands will print the last 10 lines of a text file to the standard output?

1. A. cat -n 10 filename
2. B. dump -n 10 filename
3. C. head -n 10 filename
4. D. tail -n 10 filename

Correct Answer: D