Which of the following is a valid IPv6 address?

Which of the following keywords can be used in the file /etc/resolv.conf? (Choose TWO correct answers.)

On a regular users workstation the route command takes a long time before printing out the routing table. Which of the
following errors does that indicate?

Which keyword must be listed in the hosts option of the Name Service Switch configuration file in order to make host
lookups consult the /etc/hosts file?

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

What argument to the -type option of find will match files that are symbolic links? (Specify only the argument and no other
options or words.)

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.)

The presence of what file will temporarily prevent all users except root from logging into the system? (Specify the full name
of the file, including path.)

Which configuration file would be edited to change the default options for outbound SSH sessions?

Which of the following programs uses the hosts.allow file to perform its main task of checking for access control restrictions
to system services?