When does TCP of a host station decide to retransmit a segment?
A) When it does not receive an acknowledgment from the receiver.
B) Never. TCP is not capable of retransmitting segments.
C) When the neighboring switch requests a retransmission due to a lost segment.
D) When the neighboring router requests a retransmission due to a lost segment.
E) When a TCP connection is not properly closed.

Question

Quizplus · Accepted Answer

TCP decides to retransmit a segment when it does not receive an acknowledgment from the receiver. This indicates that the segment was lost or corrupted during transmission and needs to be sent again. TCP uses a variety of mechanisms to detect and recover from lost segments, including retransmission timeouts and duplicate acknowledgments.

When Does TCP of a Host Station Decide to Retransmit