Lpi 102-500 Online Practice Questions and Exam Preparation

Lpi 102-500 Online Questions & Answers

• Question 151:

  FILL IN THE BLANK

  Which environment variable is used by an X11 client to determine the X Server to connect to? (Specify only the variable name without any preceding commands or values.)

  Display

• Question 152:

  What is the conventional purpose of Linux UIDs that are lower than 100?

  A. They are reserved for super user accounts.
  B. They are reserved for the system admin accounts.
  C. They are reserved for system accounts.
  D. They are unused, aside from 0, because they are targets of exploits.
  E. They are used to match with GIDs in grouping users.
  C. They are reserved for system accounts.

• Question 153:

  What output will the following command produce?

  seq 1 5 20

  A. 1 5 10 15
  B. 1 6 11 16
  C. 1 2 3 4
  D. 2 3 4 5
  E. 5 10 15 20
  B. 1 6 11 16

• Question 154:

  What is true regarding public and private SSH keys? (Choose two.)

  A. For each user account, there is exactly one key pair that can be used to log into that account.
  B. The private key must never be revealed to anyone.
  C. Several different public keys may be generated for the same private key.
  D. To maintain the private key's confidentiality, the SSH key pair must be created by its owner.
  E. To allow remote logins, the user's private key must be copied to the remote server.
  B. The private key must never be revealed to anyone.
  D. To maintain the private key's confidentiality, the SSH key pair must be created by its owner.

• Question 155:

  What command should be used to print a listing of email in the system's mail queue?

  A. lpq
  B. mailq
  C. mlq
  D. sendmail -l
  B. mailq

• Question 156:

  Which file used by XDM specifies the default wallpaper?

  A. /etc/X11/xdm/Xsetup
  B. /etc/X11/xdm.conf
  C. /etc/X11/xdm/Defaults
  D. /etc/X11/defaults.conf
  A. /etc/X11/xdm/Xsetup

• Question 157:

  Which of the following are requirements in order to run a shell script like a regular command from anywhere in the filesystem? (Choose Three.)

  A. The user issuing the command must be in the group script.
  B. The script file must be found in the $PATH.
  C. The script file must have the executable permission bit set.
  D. The script must begin with a shebang-line (#!) that points to the correct interpreter.
  E. The file system on which the script resides must be mounted with the option scripts.
  B. The script file must be found in the $PATH.
  C. The script file must have the executable permission bit set.
  D. The script must begin with a shebang-line (#!) that points to the correct interpreter.

• Question 158:

  FILL IN THE BLANK

  In an xinetd configuration file, which attribute specifies the network address that will be used to provide the service?

  bind

• Question 159:

  How do shadow passwords improve the password security in comparison to standard no-shadow password?

  A. Regular users do not have access to the password hashes of shadow passwords.
  B. Every shadow password is valid for 45 days and must be changed afterwards.
  C. The system's host key is used to encrypt all shadow passwords.
  D. Shadow passwords are always combined with a public key that has to match the user's private key.
  E. Shadow passwords are stored in plain text and can be checked for weak passwords.
  A. Regular users do not have access to the password hashes of shadow passwords.

• Question 160:

  Which of the following commands will help identify a broken router between the local and the remote machine?

  A. ps
  B. netstat
  C. nslookup
  D. ifconfig
  E. traceroute
  E. traceroute