Question
Asked Nov 20, 2019
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In Figure 6-36 (page 557) we saw that in addition to the 32-bit acknowledgment field, there is an ACK bit in the fourth word.

Does this really add anything to the TCP header?

Why or why not?

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Expert Answer

Step 1

Note: The Figure 6-36 is missing in the question, but according to the point “in addition to the 32-bit acknowledgment field, there is an ACK bit in the fourth word”, the below explanation is given.

Step 2

ACK usage in the TCP segment:

Yes”, the ACK bit is used to tell that whether the 32-bit file...

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