CompTIA CompTIA Certifications LX0-103 Questions & Answers

• Question 81:

  What is the output of the following command?

  echo "Hello World" | tr -d aieou

  A. Hello World

  B. eoo

  C. Hll Wrld

  D. eoo Hll Wrld

  Correct Answer: C

• Question 82:

  What is the maximum niceness value that a regular user can assign to a process with the nice command when executing a new process?

  A. 9

  B. 19

  C. 49

  D. 99

  Correct Answer: B

• Question 83:

  Immediately after deleting 3 lines of text in vi and moving the cursor to a different line, which single character command will insert the deleted content below the current line?

  A. i (lowercase)

  B. P (uppercase)

  C. p (lowercase)

  D. U (uppercase)

  E. u (lowercase)

  Correct Answer: C

• Question 84:

  A user accidentally created the subdirectory \dir in his home directory. Which of the following commands will remove that directory?

  A. rmdir '~/\dir'

  B. rmdir "~/\dir"

  C. rmdir ~/'dir'

  D. rmdir ~/\dir

  E. rmdir ~/\\dir

  Correct Answer: E

• Question 85:

  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

  Correct Answer: B

• Question 86:

  In Bash, inserting 1>and2 after a command redirects

  A. standard error to standard input.

  B. standard input to standard error.

  C. standard output to standard error.

  D. standard error to standard output.

  E. standard output to standard input.

  Correct Answer: C

• Question 87:

  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

  Correct Answer: D

• Question 88:

  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?

  A. -dirmax

  B. -maxdepth

  C. -maxlevels

  D. -n

  E. -s

  Correct Answer: B

• Question 89:

  Which of the following statements is correct regarding the command foo 1> bar?

  A. The stdout from the command foo is appended to the file bar.

  B. The stdout from the command foo overwrites the file bar.

  C. The command foo receives its stdin from the file bar.

  D. The command foo receives its stdin from the stdout of the command bar.

  E. The stderr from the command foo is saved to the file bar.

  Correct Answer: B

• Question 90:

  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

  Correct Answer: D