Lpi LPI Certifications 101-500 Questions & Answers

• Question 131:

  Which variable defines the directories in which a Bash shell searches for executable commands?

  A. BASHEXEC

  B. BASHRC

  C. PATH

  D. EXECPATH

  E. PATHRC

  Correct Answer: C

• Question 132:

  Which of the following signals is sent to a process when the key combination CTRL+C is pressed on the keyboard?

  A. SIGTERM

  B. SIGINT

  C. SIGSTOP

  D. SIGKILL

  Correct Answer: B

• Question 133:

  What happens after issuing the command vi without any additional parameters?

  A. vi starts and loads the last file used andmoves the cursor to the position where vi was when it last exited.

  B. vi starts and requires the user to explicitly either create a new or load an existing file.

  C. vi exits with an error message as it cannot be invoked without a file name to operate on.

  D. vi starts in command mode and opens a new empty file.

  E. vi starts and opens a new file which is filled with the content of the vi buffer if the buffer contains text.

  Correct Answer: D

• Question 134:

  Which of the following commands will print the last 10 lines of a text file to the standard output?

  A. cat -n 10 filename

  B. dump -n 10 filename

  C. head -n 10 filename

  D. tail -n 10 filename

  Correct Answer: D

• Question 135:

  Which of the following commands prints a list of usernames (first column) and their primary group (fourth column) from the /etc/passwd file?

  A. fmt -f 1,4 /etc/passwd

  B. split -c 1,4 /etc/passwd

  C. cut -d : -f 1,4 /etc/passwd

  D. paste -f 1,4 /etc/passwd

  Correct Answer: C

• Question 136:

  Which of the following commands will reduce all consecutive spaces down to a single space?

  A. tr '\s' ' ' < a.txt > b.txt

  B. tr -c ' ' < a.txt > b.txt

  C. tr -d ' ' < a.txt > b.txt

  D. tr -r ' ' '\n' < a.txt > b.txt

  E. tr -s ' ' < a.txt > b.txt

  Correct Answer: E

• Question 137:

  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. and

  D. %

  E. #

  Correct Answer: C

• Question 138:

  In the vi editor, which of the following commands will copy the current line into the vi buffer?

  A. c

  B. cc

  C. 1c

  D. yy

  E. 1y

  Correct Answer: D

• Question 139:

  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

  Correct Answer: AD

• Question 140:

  When starting a program with the nice command without any additional parameters, which nice level is set for the resulting process?

  A. -10

  B. 0

  C. 10

  D. 20

  Correct Answer: C