CompTIA A+ Core 1 (220-1201) — Question 166

Which of the following DNS record types is used to identify an email server?

Answer options

• A. AAAA
• B. CNAME
• C. TXT
• D. MX

Correct answer: D

Explanation

The MX (Mail Exchange) record is specifically designed to direct email traffic to the correct mail server. The other options, such as AAAA, CNAME, and TXT, serve different purposes, such as identifying IPv6 addresses, creating aliases, and providing text information, respectively.