Answer to Question #300846 in Computer Networks for Tege

Question

8. a) what are the difference between classful addressing and classless addressing in IPv4?

 b) what are the difference between routing and forwarding?

c) compare unicast and multicast routing protocols.

Answer 1

a) The primary distinction between classful and classless addressing is that classless addressing provides for more efficient allocation of IP addresses than classful addressing. In a nutshell, classless addressing avoids the problem of IP address exhaustion that can arise with classful addressing.

b) Forwarding is about moving a packet from a router's input port to the appropriate output port. Routing is about determining the end-to-routes between sources and destinations.

c) A Unicast transmission/stream sends IP packets to a single recipient on a network. A Multicast transmission sends IP packets to a group of hosts on a network.