Q1- Why does a router normally have more than one interface?   Q2- Rewrite the following IP addresses using binary notation: 12.74.16.18/22 Then find...

Q1- Why does a router normally have more than one interface?

Q2- Rewrite the following IP addresses using binary notation:

12.74.16.18/22

Then find the number of addresses in the network, the first address, and the last address.

Q3-Why do we need care-of address? How it works?

Q4- Calculate the Sum, Wrapped Sum and Checksum from the following header values.

1. Version number = 4, Header Length = 12, Service Type = 0, Total Length = 28
2. Identification = 56781, Flags = reset, Fragmentation offset = 0
3. Time-to-live = 8, Protocol = OSPF, Header Checksum = 0
4. Source IP address = 10.10.5.6
5. Destination address = 10.10.10.10