Lpi LPI Certifications 101-400 Questions & Answers

• Question 81:

  Which of the following commands determines the type of a file by using a definition database file which contains information about all common file types?

  A. magic

  B. type

  C. file

  D. pmagic

  E. hash

  Correct Answer: C

• Question 82:

  Which of the following commands prints all files and directories within the /tmp directory or its subdirectories which are also owned by the user root? (Choose TWO correct answers.)

  A. find /tmp -uid root -print

  B. find -path /tmp -uid root

  C. find /tmp -user root -print

  D. find /tmp -user root

  E. find -path /tmp -user root print

  Correct Answer: CD

• Question 83:

  When running the command

  sed -e "s/a/b/" /tmp/file >/tmp/file

  While /tmp/file contains data, why is /tmp/file empty afterwards?

  A. The file order is incorrect. The destination file must be mentioned before the command to ensure redirection.

  B. The command sed did not match anything in that file therefore the output is empty.

  C. When the shell establishes the redirection it overwrites the target file before the redirected command starts and opens it for reading.

  D. Redirection for shell commands do not work using the > character. It only works using the | character instead.

  Correct Answer: C

• Question 84:

  Which of the following command sets the Bash variable named TEST with the content FOO?

  A. set TEST="FOO"

  B. TEST = "FOO"

  C. var TEST="FOO"

  D. TEST="FOO"

  Correct Answer: D

• Question 85:

  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 86:

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

  A. vi starts and loads the last file used and moves 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 87:

  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 88:

  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 89:

  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 90:

  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