In order to bypass print filters using lpr, which of following switches should be used:

You need to prohibit users to use Ctrl+Alt+Del to reboot the system. Complete the following line in /etc/inittab

ca:12345:________:/bin/echo "Reboot not allowed"

With the find command, which argument to the -name flag will match files or directories beginning with a ‘.’ (period) ?

In the config file for xinetd, you can specify the interface to offer service by the attribute:

Which option, when passed to the gpg command, will enter an interactive menu enabling the user to perform key management related tasks?

(Provide only the option)

You wish to execute the ls command, but it appears to be aliased. What is the easiest way to execute the original ls?

To allow IPs from network 111.222.55.0 and 111.222.56.0 networks in TCP wrappers, what network and netmask pair can be used in /etc/hosts.allow?

Please specify the directory containing the configuration files for the CUPS printing system.

(Provide the full path to the directory)

You want to make sure all Bash users, when they login, get access to a new program in /opt/bin (not currently in their PATH). To ensure this you would put the command
PATH=$PATH:/opt/bin; export PATH
in what file?

Type the command to change your Ethernet interface eth0 to the IP 10.4.4.100 with a class C subnet mask.