Question 1

Why is the xhost program considered dangerous to use?

Options :

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.

Answer: B

Question 2

What is the difference between the commands test -e path and test -f path?

Options :

A : They are equivalent options with the same behaviour.

B : The -f option tests for a regular file. The -e option tests for an empty file.

C : Both options check the existence of the path. The -f option also confirms that it is a regular file.

D : The -f option tests for a regular file. The -e option tests for an executable file.

Answer: C

Question 3

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

Options :

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.

Answer: A,B

Question 4

What entry can you add to syslog.conf file to have all syslog messages generated by your system go to virtual console 12?

Options :

A : *.* /dev/tty12

B : /var/log/messages | /dev/tty12

C : | /dev/tty12

D : syslog tty12

E : mail.* /dev/tty12

Answer: A

Question 5

Which configuration file contains the default options for SSH clients?

Options :

A : /etc/ssh/sshd_config

B : /etc/ssh/ssh

C : /etc/ssh/ssh_config

D : /etc/ssh/client

E : /etc/ssh/ssh_client

Answer: C

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