How is DHCP enabled on a server?

Which of the following files should be edited to disable remote machines from performing a “finger” on a system?

When run on a machine called client, which of the following commands will mount the /usr/local/bin directory from the host over the /home/bin directory on client?

What is the last step in setting up a Primary Domain Name Server?

Where is the sendmail.pid file kept?

To enable the SNMP daemon during system startup, which of the following files should be modified?

An application or user experiences poor performance, yet examination of the nfsstat -c output indicates no or very few timeouts and retransmits. This means that the client is receiving responses from the server as fast as it is asking for them. What is the first thing to be checked?

A user can ping everything on the local network earth.net from an AIX box (which is located on earth.net).
However, if the user tries to ping something on another network (mars.net) the user must type the fully qualified hostname. What can the user do so that the fully qualified hostname does not have to be typed every time the user wants to access ANY machine on mars.net?