Lpi 101-500 Online Practice Questions and Exam Preparation

Lpi 101-500 Online Questions & Answers

• Question 141:

  Which of the following commands lists all defined variables and functions within Bash?

  A. env
  B. export
  C. env -a
  D. set
  E. echo $ENV
  D. set

• Question 142:

  CORRECT TEXT Which program runs a command in specific intervals and refreshes the display of the program's output? (Specify ONLY the command without any path or parameters.)

  watch

• Question 143:

  Which of the following commands set the sticky bit for the directory /tmp? (Choose TWO correct answers.)

  A. chmod +s /tmp
  B. chmod +t /tmp
  C. chmod 1775 /tmp
  D. chmod 4775 /tmp
  E. chmod 2775 /tmp
  B. chmod +t /tmp
  C. chmod 1775 /tmp

• Question 144:

  FILL IN THE BLANK What command enables a network interface according to distribution-specific configuration, such as /etc/network/interfaces or /etc/sysconfig/ network-scripts/ifcfg-eth0? (Specify only the command without any path or parameters.)

  ifup

• Question 145:

  What of the following statements are true regarding /dev/ when using udev? (Choose TWO correct answers.)

  A. Entries for all possible devices get created on boot even if those devices are not connected.
  B. Additional rules for udev can be created by adding them to /etc/udev/rules.d/.
  C. When using udev, it is not possible to create block orcharacter devices in /dev/ using mknod.
  D. The /dev/ directory is a filesystem of type tmpfs and is mounted by udev during system startup.
  E. The content of /dev/ is stored in /etc/udev/dev and is restored during system startup.
  B. Additional rules for udev can be created by adding them to /etc/udev/rules.d/.
  D. The /dev/ directory is a filesystem of type tmpfs and is mounted by udev during system startup.

• Question 146:

  What does the command mount -a do?

  A. It mounts all available filesystems onto the current directory.
  B. It shows all mounted filesystems.
  C. It mounts all user mountable filesystems for thecurrent user.
  D. It mounts all filesystems listed in /etc/fstab which have the option auto set.
  E. It mounts all filesystems listed in /etc/fstab which have the option noauto set.
  D. It mounts all filesystems listed in /etc/fstab which have the option auto set.

• Question 147:

  Given the following input stream:

  txt1.txt atxt.txt txtB.txt

  Which of the following regular expressions turns this input stream into the following output stream?

  txt1.bak.txt atxt.bak.txt txtB.bak.txt

  A. s/^.txt/.bak/
  B. s/txt/bak.txt/
  C. s/txt$/bak.txt/
  D. s/^txt$/.bak^/
  E. s/[.txt]/.bak$1/
  B. s/txt/bak.txt/

• Question 148:

  On a system using systemd-joumaid, which of the following commands add the message Howdy to the system log? (Choose two.)

  A. append Howdy
  B. logger Howdy
  C. systemd-cat echo Howdy
  D. echo Howdy > /dev/journal
  E. journalctl add Howdy
  B. logger Howdy
  C. systemd-cat echo Howdy

• Question 149:

  What is the purpose of the Bash built-in export command?

  A. It allows disks to be mounted remotely.
  B. It runs a command as a process in a subshell.
  C. It makes the command history available to subshells.
  D. It sets up environment variables for applications.
  E. It shares NFS partitions for use by other systems on the network.
  D. It sets up environment variables for applications.

• Question 150:

  Which command uninstalls a package but keeps its configuration files in case the package is re- installed?

  A. dpkg pkgname
  B. dpkg pkgname
  C. dpkg pkgname
  D. dpkg pkgname
  E. dpkg pkgname
  E. dpkg pkgname