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Exam CA1-005 topic 1 question 26 discussion

Actual exam question from CompTIA's CA1-005
Question #: 26
Topic #: 1
[All CA1-005 Questions]

A systems administrator needs to address risks associated with corporate brand impersonation via email. The systems administrator wants a method that permits recipient servers to validate the source authenticity of emails received. Which of the following is the most appropriate?

  • A. SPF
  • B. DKIM
  • C. S/MIME
  • D. DMARC
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Suggested Answer: D 🗳️
by mansamusa at Jan. 5, 2025, 11:50 p.m.

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mansamusa
5 months, 3 weeks ago
Selected Answer: B
DKIM ensures the email's content has not been altered in transit by adding a digital signature to the email header. How it works: The domain owner generates a pair of cryptographic keys. The public key is published in the DNS, and the private key is used by the sending server to sign emails. Validation: Recipient servers retrieve the public key to verify the signature's authenticity.
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