EC-Council Certified Security Analyst (ECSA v8) — Question 25

A firewall’s decision to forward or reject traffic in network filtering is dependent upon which of the following?

Answer options

• A. Destination address
• B. Port numbers
• C. Source address
• D. Protocol used

Correct answer: D

Explanation

The correct answer is D, as the protocol used is crucial for the firewall to determine the type of traffic and how to handle it. Options A, B, and C are also important, but they are secondary to the protocol, which dictates the rules and behaviors for the traffic being processed.