GIAC Information Security Professional (GISP) — Question 3

Which of the following protocols is used to verify the status of a certificate?

Answer options

• A. CEP
• B. HTTP
• C. OSPF
• D. OCSP

Correct answer: D

Explanation

The correct answer, OCSP (Online Certificate Status Protocol), is specifically designed for checking the revocation status of digital certificates. The other options, such as CEP, HTTP, and OSPF, serve different purposes and do not relate to certificate status verification.