CompTIA Network+ (N10-008) — Question 662

Which of the following DNS records maps an alias to a true name?

Answer options

• A. AAAA
• B. NS
• C. TXT
• D. CNAME

Correct answer: D

Explanation

The correct answer is D, CNAME, which is specifically designed to map an alias name to its canonical (true) name. Options A (AAAA), B (NS), and C (TXT) serve different purposes in DNS; AAAA is for mapping IPv6 addresses, NS specifies name servers, and TXT is used for text-based information about the domain.