Discussion
Decryption and encryption of data are the responsibility of which of the following layer ?
Answer: C
Encryption and decryption are the responsibility of the Presentation layer.
The presentation layer deals with the syntax of the data exchanged, including its translation, compression and encryption. The physical layer (A) carries bits, the data link layer (B) frames the bits and checks for errors on one link, and the session layer (D) sets up and controls dialogues between applications.
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