Alcatel-Lucent NRS I Composite Exam — Question 7

Host A receives a TCP SYN/ACK segment. What does this signify?

Answer options

• A. Host A has received a request to establish a TCP session.
• B. Host A has received a request to close a TCP session
• C. A TCP session is now established to host A.
• D. The TCP session has been terminated due to a timeout.

Correct answer: C

Explanation

The correct answer is C because a SYN/ACK segment is part of the three-way handshake used to establish a TCP connection, indicating that the session is now established. Option A is incorrect because it refers to the initial SYN request rather than the acknowledgment. Options B and D are incorrect as they pertain to closing or terminating a session, which is not signified by receiving a SYN/ACK.