In ARQ, a NAK:

a. is sent by the recipient if the message was received without error
b. is sent by the sender at the same time as it sends a data packet
c. is sent by the recipient if the message contains an error
d. refers to non-asynchronous Kermit technique
e. means that the sender should continue with sending the next message


Ans: c. is sent by the recipient if the message contains an error

Computer Science & Information Technology

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