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SSCP · Question #1160
SSCP Question #1160: Real Exam Question with Answer & Explanation
The correct answer is C: X.509. Digital certificates, specifically those used in Public Key Infrastructure (PKI) for authentication and encryption, adhere to the X.509 standard.
Submitted by helene.fr· Apr 18, 2026Cryptography
Question
Digital Certificates use which protocol?
Options
- AX.400
- BX.500
- CX.509
- DX.511
- EX.525
- FNone of the above
Explanation
Digital certificates, specifically those used in Public Key Infrastructure (PKI) for authentication and encryption, adhere to the X.509 standard.
Common mistakes.
- A. X.400 is a standard for message handling systems (email).
- B. X.500 is a standard for directory services, often used in conjunction with X.509 but not the certificate format itself.
- D. X.511 is a standard related to directory information models.
- E. X.525 is a standard related to directory replication.
- F. X.509 is the correct standard for digital certificates.
Concept tested. X.509 digital certificate standard
Reference. https://learn.microsoft.com/en-us/windows/win32/seccrypto/x-509-certificates
Topics
#Digital Certificates#X.509#PKI#Cryptography Standards
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