Certified Ethical Hacker (CEH) — Question 50

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

Answer options

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

Correct answer: A

Explanation

The correct answer is A, WHOIS, as it is specifically designed to provide access to domain name registration information. The other options, such as IANA, CAPTCHA, and IETF, serve different purposes related to internet governance and security, but do not provide a database of registration contact information.