The network has a File Server that will always have the fixed address 172.16.4.70 handed out to it during the automatic address assignment each time, how can that be ensured? Explain in detail with the required configuration. You also want to make sure backup servers are available in case the primary server responsible for the address assignment fails. Write down the steps required to set up such policy. You also need to ensure that while both the servers (primary and backup) are operational, one may be kept idle and can become active only when the other DHCP server fails