CompTIA A+ Core 1 (220-1201) — Question 48

Which of the following DNS records would an administrator change to redirect email flow?

Answer options

• A. MX
• B. TXT
• C. SPF
• D. CNAME

Correct answer: A

Explanation

The MX (Mail Exchange) record is specifically designed to direct email to the correct mail server, making it the appropriate choice for redirecting email flow. The TXT, SPF, and CNAME records serve different purposes; TXT records are for text-based information, SPF is used for sender policy framework, and CNAME is for aliasing one domain to another, none of which directly alter email routing.