Certified Ethical Hacker (CEH v10) — Question 28

Which system consists of a publicly available set of databases that contain domain name registration contact information?

Answer options

• A. IANA
• B. CAPTCHA
• C. IETF
• D. WHOIS

Correct answer: D

Explanation

The correct answer is D, WHOIS, as it specifically refers to a system that allows users to access domain registration details. A. IANA is related to internet protocol parameters, B. CAPTCHA is a security feature, and C. IETF is an organization that develops internet standards, none of which provide domain registration contact information.