Certified Ethical Hacker (CEH v11) — Question 109

Which is the first step followed by Vulnerability Scanners for scanning a network?

Answer options

• A. OS Detection
• B. Firewall detection
• C. TCP/UDP Port scanning
• D. Checking if the remote host is alive

Correct answer: D

Explanation

The correct answer is D because the first step in the scanning process is to verify if the remote host is reachable. Options A, B, and C are subsequent steps that depend on the host being alive to gather further information.