CompTIA A+ Core 1 (220-1201) — Question 169

Which of the following DNS records should a technician configure to allow domains that are not owned by the company to send messages on the company's behalf?

Answer options

• A. SPF
• B. MX
• C. CNAME
• D. DMARC
• E. DKIM

Correct answer: A

Explanation

The correct answer is A, SPF, which allows administrators to specify which mail servers are permitted to send emails for a domain. The other options, such as MX and CNAME, serve different purposes, like directing email traffic or aliasing domain names, while DMARC and DKIM focus on email authentication and integrity rather than granting permission for third-party domains.