NSE 7 – Network Security Architect — Question 17

In which of the following states is a given session categorized as ephemeral? (Choose two.)

Answer options

• A. A TCP session waiting to complete the three-way handshake.
• B. A TCP session waiting for FIN ACK.
• C. A UDP session with packets sent and received.
• D. A UDP session with only one packet received.

Correct answer: B, C

Explanation

Option B is correct because a TCP session waiting for a FIN ACK indicates that the session is in the process of closing but has not yet fully terminated, making it ephemeral. Option C is also correct since a UDP session with packets sent and received is typically short-lived and does not require a persistent connection. Options A and D do not represent ephemeral sessions; A is waiting for the handshake to complete, and D has only received a single packet, which is not enough to establish a session.