NSE 4 – FortiGate 5.4 — Question 60

Which of the following statements is true regarding the TCP SYN packets that go from a client, through an implicit web proxy (transparent proxy), to a web server listening at TCP port 80? (Choose three.)

Answer options

• A. The source IP address matches the client IP address.
• B. The source IP address matches the proxy IP address.
• C. The destination IP address matches the proxy IP address.
• D. The destination IP address matches the server IP addresses.
• E. The destination TCP port number is 80.

Correct answer: A, D, E

Explanation

The correct answers are A, D, and E. A is correct because the SYN packet retains the original client's source IP address. D is right since the destination IP address points to the web server's IP. E is accurate as the packets are directed to TCP port 80, which is the standard port for HTTP traffic. Option B is incorrect because the source IP remains that of the client, not the proxy, and option C is incorrect since the destination IP should be that of the server, not the proxy.