Câu 302: 210-250: CCNA Cyber Ops Understanding Cisco Cybersecurity Fundamentals

Which one of the following actions should be taken by a client to verify the entity that they received a certificate from is the entity that should be using the certificate?

1. A. Send a message encrypted with the system's peer's public key to verify that the peer can decrypt the message with the private key of the entity that is identified in the certificate. — đáp án hiện tại
2. B. Decrypt the certificate signature using the CA private key and check to make sure that the certificate hash matches what they received from the peer.
3. C. Ensure that the issuer and the subject match on the certificate of the peer.
4. D. Contact the CA by phone to determine how they validated the identity of the system during certificate enrollment of the peer that they are communicating with.