Lpi 102-500 Online Practice Questions and Exam Preparation

Lpi 102-500 Online Questions & Answers

• Question 91:

  What is true about the file .profile in a user's home directory?

  A. It must be executable.
  B. It must call the binary of the login shell.
  C. It must use a valid shell script syntax.
  D. It must start with a shebang.
  E. It must be readable for its owner only.
  C. It must use a valid shell script syntax.

• Question 92:

  Which of the following SQL queries counts the number of occurrences for each value of the field order_type in the table orders?

  A. SELECT order_type,COUNT(*) FROM orders WHERE order_type=order_type;
  B. SELECT order_type,COUNT(*) FROM orders GROUP BY order_type;
  C. COUNT(SELECT order_type FROM orders);
  D. SELECT COUNT(*) FROM orders ORDER BY order_type;
  E. SELECT AUTO_COUNT FROM orders COUNT order_type;
  B. SELECT order_type,COUNT(*) FROM orders GROUP BY order_type;

• Question 93:

  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 94:

  How is a display manager started?

  A. It is started by a user using the command startx.
  B. It is started like any other system service by the init system.
  C. It is started by inetd when a remote hosts connects to the X11 port.
  D. It is started automatically when a X11 user logs in to the system console.
  B. It is started like any other system service by the init system.

• Question 95:

  FILL IN THE BLANK

  With X11 forwarding in ssh, what environment variable is automatically set in the remote host shell that is not set when X11 forwarding is not enabled? (Specify only the environment variable without any additional commands or values.)

  DISPLAY

• Question 96:

  Which of the following sections exists in a systemd timer unit?

  A. [Events]
  B. [Timer]
  C. [Cron]
  D. [Schedule]
  E. [Trigger]
  B. [Timer]

• Question 97:

  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

• Question 98:

  Which of the following is the best way to list all defined shell variables?

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

• Question 99:

  What benefit does an alias in bash provide?

  A. It provides faster lookups for commands in the system directory.
  B. It creates a local copy of a file from another directory.
  C. It hides what command you are running from others.
  D. It allows a string to be substituted for the first word of a simple command.
  D. It allows a string to be substituted for the first word of a simple command.

• Question 100:

  What is the purpose of TCP wrapper?

  A. Manage and adjust bandwidth used by TCP services.
  B. Bind a network service to a TCP port.
  C. Encapsulate TCP messages in IP packets.
  D. Add SSL support to plain text TCP services.
  E. Limit access to a network service.
  E. Limit access to a network service.