Computer Networks

1:

Decryption and encryption of data are responsibility of

A.

physical layer

B.

data link layer

C.

presentation layer

D.

session layer 

 

Answer : C

Explanation :

 To send any important information (or) any sensitive information that must be able to assure privacy.
Encryption means encoding of original information, decryption means decoding.
Encryption (decryption (original message) = original message. 

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Option: A

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