Question

Question 6

A router has the following routing table:

Destination Address Range	Link Interface
123.46.56.0/22	1
123.46.56.0/23	2
123.46.56.0/24	3
Otherwise	4

The router uses longest-prefix matching. On which interface will the router send each of the following received packets:

Packet 1 with a destination: 123.46.56.1

Packet 2 with a destination: 123.46.56.2

Packet 3 with a destination: 123.46.56.3

Packet 4 with a destination: 123.46.56.4

Answer 1

all of these packets match with 123.46.56.0/24 with longest-prefix-matching.
so, all of these will be routed on to List interface 3.

packets 1, 2, 3 and 4 will be routed on interface 3.