What certificate authority user role is tasked with the approval of requests for certificate enrollment and revocation

Certificate manager.

Explanation:

Certification can be defined as a recognition given for completing a course of study or passing an examination. This is to certify that the individual is a professional in that course of study. Some examples are CCNA, Comptia A+, HSE I and II

Certificate manager is the certificate authority user role that is tasked with the approval of requests for certificate enrollment and revocation.

This ultimately implies that, the individual who is saddled with the responsibility of approving requests for certificate enrollment and revocation is a certificate manager.

Hence, a certificate can be revoked by a certificate manager if a person issued the certificate contravenes the set rules, requirements and standard binding on the certificate.