Which protocol uses X.509 certificates to support mail protection performed by mail agents?
- IPsec
- SSL
- S/MIME
- EAP-TLS
Explanation: Many applications use the X.509 standard format of digital certificates to authenticate websites, public key distribution, and end devices connected to switch ports. User email agents use the S/MIME protocol to support email protection. S/MIME uses X.509 certificates.
Exam with this question: Module 17: Quiz – Configure Network and Device Security Network Security
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