Question

What happens in case of lost acknowledgement during data transmission  in TCP? 

a.The existing connection is torn down and new connection is formed

 

b.The TCP re-transmits the data for which acknowledgement has not been received

 

c.TCP first tear down the connection, establishes new connection and re-sends entire data again.

 

d.The TCP keeps transmitting the remaining data

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Answer 1

Answer:

(b) is your answer

Explanation:

A TCP segment sent by the sender may get lost on the way before reaching the receiver. This causes the receiver to send the acknowledgement with same ACK number to the sender. As a result, sender retransmits the same segment to the receiver.

hope it helps you