Lpi LPI Certifications 102-500 Questions & Answers

• Question 151:

  To prevent a specific user from scheduling tasks with at, what should the administrator do?

  A. Add the specific user to /etc/at.allow file.

  B. Add the specific user to [deny] section in the /etc/atd.conf file.

  C. Add the specific user to /etc/at.deny file.

  D. Add the specific user to nojobs group.

  E. Run the following: atd --deny [user].

  Correct Answer: C

• Question 152:

  Which TWO statements about crontab are true?

  A. Every user may have their own crontab.

  B. Changing a crontab requires a reload/restart of the cron daemon.

  C. The cron daemon reloads crontab files automatically when necessary.

  D. hourly is the same as "0 * * * *".

  E. A cron daemon must run for each existing crontab.

  Correct Answer: AC

• Question 153:

  What is NOT contained in the locale setting of the operating system?

  A. currency symbol

  B. language

  C. timezone

  D. thousands separator

  Correct Answer: C

• Question 154:

  The correct crontab entry to execute the script chklog three times per month between 3 p.m. and 5 p.m.:

  A. * 3,4,5 1 * * chklog

  B. 3 3,4,5 1 * * chklog

  C. 3 15,16,17 * * * chklog

  D. 0 15,16,17 1 * * chklog

  E. * 15,16,17 1 * * chklog

  Correct Answer: D

• Question 155:

  Of the ways listed, which is the best method to temporarily suspend a user's ability to interactively login?

  A. Use passwd -d username to give the user an empty password.

  B. Use chage to expire the user account.

  C. Change the user's password.

  D. Add the command exit to the user's .login file.

  Correct Answer: B

• Question 156:

  What is true regarding the command userdel --force --remove bob? (Choose TWO correct answers.)

  A. The user bob is removed from the system's user database.

  B. The user bob's home directory is removed.

  C. The locate database is updated to drop files owned by bob.

  D. All files owned by bob are remove from all mounted filesystems.

  E. In case bob was the last member of a group, that group is deleted.

  Correct Answer: AB

• Question 157:

  X is running okay but you're concerned that you may not have the right color depth set. What single command will show you the running color depth while in X?

  A. xcd

  B. xcdepth

  C. xwininfo

  D. xcolordepth

  E. cat /etc/X11

  Correct Answer: C

• Question 158:

  Which command should be added to /etc/bash_profile to change the language of messages from an internationalised program to Portuguese (pt)? (Select TWO correct answers)

  A. export LANGUAGE="pt"

  B. export MESSAGE="pt"

  C. export LANG="pt"

  D. export LC_MESSAGES="pt"

  E. export ALL_MESSAGES="pt"

  Correct Answer: CD

• Question 159:

  How is the file format of /etc/crontab different from a normal crontab file? (Select TWO correct answers)

  A. The /etc/crontab file can specify a year field.

  B. A normal crontab file must be installed with the crontab command.

  C. A normal crontab file allows for environment variable substitution.

  D. The /etc/crontab file has a user field for commands.

  Correct Answer: BD

• Question 160:

  Why is the xhost program considered dangerous to use?

  A. It makes it difficult to uniquely identify a computer on the network.

  B. It allows easy access to your X server by other users.

  C. It logs sensitive information to syslog.

  D. It makes your computer share network resources without any authentication.

  E. It is a graphical DNS tool with known exploits.

  Correct Answer: B