a. What is a multihomed router? b. What is a DMZ? c. Why do companies use DMZs? d. What three types of hosts are placed in the DMZ? e. Why do companies put public servers in the DMZ? f. Why do...

a. What is a multihomed router? b. What is a DMZ? c. Why do companies use DMZs? d. What three types of hosts are placed in the DMZ? e. Why do companies put public servers in the DMZ? f. Why do companies put application proxy firewalls in the DMZ? g. What host names does the external DNS server know? h. Why do all hosts in the DMZ have to be hardened stringently?