Understanding Cisco Cybersecurity Operations Fundamentals (CBROPS) — Question 293

What is the difference between the ACK flag and the RST flag?

Answer options

• A. The RST flag approves the connection, and the ACK flag indicates that a packet needs to be resent.
• B. The ACK flag marks the connection as reliable, and the RST flag indicates the failure within TCP Handshake.
• C. The RST flag approves the connection, and the ACK flag terminates spontaneous connections.
• D. The ACK flag confirms the received segment, and the RST flag terminates the connection.

Correct answer: D

Explanation

The correct answer is D because the ACK flag is used to acknowledge the receipt of packets, confirming successful communication, while the RST flag is used to abruptly terminate a connection when an error occurs. Options A, B, and C provide incorrect definitions of the functions of the ACK and RST flags, misrepresenting their purposes within TCP communication.