What is segmentation and reassembly?

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 Solution :-

Segmentation:

1. Segmentation is the term used to describe the process of dividing streams of data into smaller chunks. 

2. Segmentation usually occurs fairly early in the communication process and it is almost always software that performs the segmentation process. 

3. The segmentation process is performed prior to transfer of data across a network or before storage on a peripheral device. 

4. Segmentation is necessary because today's communication systems use what is called packetized communication.

5. A message is divided into segments; each segment contains sequence number, which enables this layer in reassembling the message.

Reassembly: 

1. Reassembly is the reverse of segmentation. Protocol Data Units are put back together in the correct order to reassemble a stream of data in its original form.

2. Message is reassembled correctly by arranging them sequence number wise; upon arrival at the destination and replaces packets which were lost in transmission. 


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