CompTIA A+ Core 1 (220-1201) — Question 143

A technician needs to update a web server’s IPv4 address in a DNS server. Which of the following records should the technician update?

Answer options

• A. AAAA
• B. MX
• C. CNAME
• D. A

Correct answer: D

Explanation

The correct answer is D, as the A record is specifically used to map a domain name to its corresponding IPv4 address. The AAAA record is meant for IPv6 addresses, the MX record is for mail exchange servers, and the CNAME record is used for aliasing one domain name to another, not for direct IP address assignments.