NSE 7 – Network Security Technologies 7.2 — Question 32

Which of the following regarding protocol states is true?

Answer options

• A. proto_state=00 indicates that UDP traffic flows in both directions.
• B. proto_state=01 indicates an established TCP session.
• C. proto_state=10 indicates an established TCP session.
• D. proto_state=01 indicates one-way ICMP traffic.

Correct answer: B

Explanation

The correct answer is B because proto_state=01 specifically indicates that a TCP session has been established. Options A, C, and D are incorrect as they misrepresent the meanings of the protocol states associated with UDP and ICMP traffic.