Q.No.7. You are the network administrator for Acme Corporation in San Francisco, with dozens of WAN links connecting to your corporate office. Right now your network is a classful network, which means that the same subnet mask is on each host and router interface. You have read about classless routing, where you can have different sized masks, but dont know what to use on your point-to-point WAN links. Is the 255.255.255.252 (/30) a helpful mask in this situation?