CompTIA Network+ (N10-008) — Question 36

Which of the following DNS records works as an alias to another record?

Answer options

• A. AAAA
• B. CNAME
• C. MX
• D. SOA

Correct answer: B

Explanation

The correct answer is B, CNAME, as it specifically designates an alias for another DNS record, allowing multiple domain names to point to the same IP address. AAAA records are used to map a hostname to an IPv6 address, MX records are used for mail exchange servers, and SOA records provide administrative information about the domain zone, none of which function as aliases.