CompTIA LX0-104 Online Practice Questions and Exam Preparation

CompTIA LX0-104 Online Questions & Answers

• Question 1:

  What happens if the password of a user in the /etc/shadow file is prepended with the ! character?

  A. When logging in, the user automatically gets root privileges in addition to his regular privileges.
  B. The password is inverted which allows the user to log in with any password other than the current password.
  C. The user is disabled and all login methods, including but not limited to password based logins, are disabled.
  D. Upon the next log in, the user is forced to change his password.
  E. The password becomes invalid which disables password based logins although other login methods remain usable.
  E. The password becomes invalid which disables password based logins although other login methods remain usable.

• Question 2:

  Which of the following are operators used for comparison by the test command? (Choose two correct answers.)

  A. equals
  B. =
  C. –is
  D. –eq
  E. null
  B. =
  D. –eq

• Question 3:

  What is true about the ntpdate command?

  A. It is the primary management command for the NTP time server.
  B. It updates the local system's date (i.e. day, month and year) but not the time (i.e. hours, minutes, seconds).
  C. It queries one or more NTP time servers and adjusts the system time accordingly.
  D. It sends the local system time to one or many remote NTP time servers for redistribution.
  E. It can be used by any user to set the user clock independently of the system clock.
  C. It queries one or more NTP time servers and adjusts the system time accordingly.

• Question 4:

  What is the command to delete the default gateway from the system IP routing table? (Choose TWO correct answers.)

  A. route del default
  B. ifconfig unset default
  C. netstat -r default
  D. ip route del default
  E. sysctl ipv4.default_gw=0
  A. route del default
  D. ip route del default

• Question 5:

  Which of the following commands connects to the remote host example.com which has OpenSSH listening on TCP port 2222? (Choose TWO correct answers.)

  A. ssh --port 2222 example.com
  B. ssh -p 2222 example.com
  C. ssh -o Port=2222 example.com
  D. ssh -o GatewayPort=2222 example.com
  E. ssh example.com:2222
  B. ssh -p 2222 example.com
  C. ssh -o Port=2222 example.com

• Question 6:

  What output will the following command produce?

  seq 1 5 20

  A. 1
  B. 1
  C. 1
  D. 2
  E. 5
  A. 1

• Question 7:

  Which configuration file would be edited to change default options for the OpenSSH server?

  A. /etc/ssh/sshd_config
  B. /etc/ssh/ssh
  C. /etc/ssh/server
  D. /etc/ssh/ssh_config
  E. /etc/ssh/ssh_server
  A. /etc/ssh/sshd_config

• Question 8:

  How many IP-addresses can be used for unique hosts inside the IPv4 subnet 192.168.2.128/28? (Specify the number only without any additional information.)

  A. 14
  A. 14

• Question 9:

  Each entry in a crontab must end with what character?

  A. Tab
  B. Space
  C. Backslash
  D. Newline
  D. Newline

• Question 10:

  Which command will set the local machine's timezone to UTC?

  A. cat UTC > /etc/timezone
  B. ln -s /usr/share/zoneinfo/UTC /etc/localtime
  C. date --timezone=UTC
  D. mv /usr/timezone/UTC /etc
  B. ln -s /usr/share/zoneinfo/UTC /etc/localtime