CompTIA SecurityX (CAS-005) — Question 230

A security administrator wants to detect a potential forged sender claim in the envelope of an email. Which of the following should the security administrator implement? (Choose two).

Answer options

• A. MX record
• B. DMARC
• C. SPF
• D. DNSSEC
• E. S/MIME
• F. TLS

Correct answer: B, C

Explanation

The correct answers are DMARC and SPF because both are protocols designed to verify the authenticity of the sender's email address. MX records are used for mail routing, DNSSEC provides DNS security, S/MIME encrypts messages, and TLS secures the transport layer, none of which directly address forged sender claims.