GIAC Security Leadership Certification (GSLC) — Question 12

An organization wants a perimeter device to inspect and transmit email requests from the internet to the internal email server.
Which of the following is used for this purpose?

Answer options

• A. Web proxy
• B. WAF
• C. Reverse proxy
• D. NIDS

Correct answer: B

Explanation

The correct answer is B, WAF, which is designed to monitor and filter HTTP traffic to and from a web application, including email requests. A Web proxy (A) is more focused on web traffic rather than email, a Reverse proxy (C) typically serves web traffic rather than specifically handling email, and NIDS (D) is for network intrusion detection, not for email transmission.