Nokia
4A0-100 · Question #80
4A0-100 Question #80: Real Exam Question with Answer & Explanation
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Question
Host A is transmitting data to host B on a TCP connection. What is the purpose of the ACK sent by host B?
Options
- AThe ACK tells the host A that host B wishes to establish a session.
- BThe ACK tells host A the sequence number of the segment that was just received by host
- CThe ACK tells host A the sequence number of the next segment that host B expects to see.
- DThe ACK is flow control from host B and tells host A to reduce its transmission rate.
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