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Scrat [10]
3 years ago
8

Trailer is only added at ___________ layer of OSI model.

Computers and Technology
1 answer:
finlep [7]3 years ago
3 0

Answer:

a. Data link layer

Explanation:

A trailer / footer is the additional data (metadata) which is positioned at the end of the data block being stored or transferred,it  may contain information for the processing of the data block or simply placed at the end of the block.

In data transmission, the data is called the payload or body after the end of the header and before the trailer starts.

In Data link layer, it contain three parts-

  • Frame header
  • Frame data
  • Frame footer    
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