If the ACK bit is set,the acknowledgment number field MUST have a value.

Name: If the ACK bit is set,the acknowledgment number field MUST have a value.
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Question

Quizplus · Accepted Answer

The ACK bit (acknowledgment) is used in TCP (Transmission Control Protocol) to indicate that the receiver has received a segment of data sent by the sender. When the ACK bit is set, the acknowledgment number field must have a value to indicate which segment of data was received. Therefore, the statement is true.

If the ACK Bit Is Set,the Acknowledgment Number Field MUST