Yes !! You can keep users of  different networks of class C in different Vlans connected with switches   and then perform Inter-vlan routing to make them communicate.

Cisco Discovery Protocol (CDP) is a proprietary layer 2 management protocol for networks. CDP provides network connectivity and device information. In real time networks CDP is use to find out about ...

Just write  'NO' as prefix to the default route command: Router(config)# no ip route 0.0.0.0 0.0.0.0 next-hop-ip/exit-interface  

With SUBNETTING you will be able to get following results : 1st subnet : NETWORK ID - 10.0.0.0                                                 3rd subn...

D is the right answer. Router : has Per-port broadcast domain & per-port collision domain. Switch : has Single broadcast domain (by def) & per-port collision domain. So, There are 2 broadcast domain...