5 - 22 Internet Communication

Question 1

Explain circuit switching with the example- Public telephone system

Answer 1

When a caller dials a number, various switches in the telephone exchanges set up a path between the caller and the recipient. Enabling two people to hold a call without any delay in the delivery of speech.

Question 2

What is packet switching?

Answer 2

Packet switching is a method of communicating packets of data across a network on which other similar communications are happening simultaneously.

Question 3

What are data packets?

Answer 3

Data that is going to be transmitted across a network is broken down into more manageable chunks called packets. Each packet contains a header and a payload containing the body being sent.

Question 4

What can be found in a header of a packet?

Answer 4

a header includes the sender’s and the recipient’s IP addresses, the protocol being used with this type of packet and the number of the packet in the sequence being sent and the hop limit.