Question

Part 2:        Questions and Answers                                  

Answer the following questions:                                                 

Q1)      Describe a protocol that will eliminate collision entirely in multiple access to a shared media channel. Give at least two advantages and two disadvantages of the protocol you describe.

Answer 1

CSMA/CD :

• CSMA/CD is  Carrier Sense Multiple Access with Collision Detection
• It is a protocol that will eliminate collision entirely in multiple access to a shared media channel.
• In this protocol all process is monitor at every stage.when a packet is sent it will make sure that packet will reach at the end until it will not allow sending next packet.

Advantages of CSMA/CD :

• It detects a collision in very little time.
• If a collision occurs it will again send a packet after the channel is free.

Disadvantages of CSMA/CD :

• It cannot reduce the collision between two nodes of channels.
• Not suitable for large networks.