Lpi LPI Certifications 102-400 Questions & Answers

• Question 51:

  Which of the following crontab entries will execute myscript at 30 minutes past every hour on Sundays?

  A. 0 * * * 30 myscript

  B. 30 * * * 6 myscript

  C. 30 0 * * 0 myscript

  D. 30 0-23 * * 0 myscript

  E. 0 0-23 * * 30 myscript

  Correct Answer: D

• Question 52:

  Which file contains the date of the last change of a user's password?

  A. /etc/gshadow

  B. /etc/passwd

  C. /etc/pwdlog

  D. /etc/shadow

  E. /var/log/shadow

  Correct Answer: D

• Question 53:

  Each entry in a crontab must end with what character?

  A. Tab

  B. Space

  C. Backslash

  D. Newline

  Correct Answer: D

• Question 54:

  Which of the following commands can remove a user from a group?

  A. grouprm

  B. groupmod

  C. passwd

  D. usergroups

  E. usermod

  Correct Answer: E

• Question 55:

  Where are user specific crontabs stored?

  A. In the database file /etc/crontab.db which is shared by all users.

  B. As individual per-user files within /var/spool/cron.

  C. As individual per-user files in /etc/cron.user.d.

  D. In the .crontab file in the user's home directory.

  E. In the file /var/cron/user-crontab which is shared by all users.

  Correct Answer: B

• Question 56:

  What is the purpose of the iconv command?

  A. It converts bitmap images from one format to another such as PNG to JPEG.

  B. It verifies that the root directory tree complies to all conventions from the Filesystem Hierarchy Standard (FHS).

  C. It displays additional meta information from icon files ending in .ico.

  D. It changes the mode of an inode in the ext4 file system.

  E. It converts files from one character encoding to another.

  Correct Answer: E

• Question 57:

  In case neither cron.allow nor cron.deny exist in /etc/, which of the following is true?

  A. Without additional configuration, no users may have user specific crontabs.

  B. Without additional configuration, all users may have user specific crontabs.

  C. The cron daemon will refuse to start and report missing files in the system's logfile.

  D. When a user creates a user specific crontab the system administrator must approve it explicitly.

  Correct Answer: A

• Question 58:

  Which character in the password field of /etc/passwd is used to indicate that the encrypted password is stored in /etc/shadow?

  A. *

  B.

  C. s

  D. x

  Correct Answer: D

• Question 59:

  Which of the following fields are available in both the global /etc/crontab file as well as in user- specific crontab files? (Select TWO correct answers)

  A. Year

  B. Minute

  C. Username

  D. Command

  Correct Answer: BD

• Question 60:

  Which command can be used to delete a group from a Linux system?

  A. groupdel

  B. groupmod

  C. groups

  D. groupedit

  Correct Answer: A