What allows TCP to detect lost segments and in turn recover from that loss?(a) Sequence number(b) Acknowledgment number(c) Checksum(d) Both Sequence & Acknowledgment numberThis question was posed to me in an online quiz.Question is taken from TCP-2 topic in division Transport Layer of Computer Network

What allows TCP to detect lost segments and in turn recover from that

1.	What allows TCP to detect lost segments and in turn recover from that loss?(a) Sequence number(b) Acknowledgment number(c) Checksum(d) Both Sequence & Acknowledgment numberThis question was posed to me in an online quiz.Question is taken from TCP-2 topic in division Transport Layer of Computer Network
Answer» Right option is (b) Acknowledgment NUMBER Best explanation: TCP header contains separate FIELDS for sequence number and acknowledgment number. Comparing these VALUES is what allows TCP to detect lost segments and in TURN recover from that loss. After detecting the lost segments, the recovery may require RETRANSMISSION of the lost segments of data.

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