ImplementationQuestion 47 of 100
Which entity in a PKI issues and signs digital certificates?
a.Certificate authority
b.Registration authority
c.Key escrow agent
d.Certificate holder
Explanation
A certificate authority (CA) issues, signs, and vouches for digital certificates, binding a public key to an identity. Trust in the CA underpins the entire PKI. A compromised CA can undermine trust for all certificates it issued.
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Sen Lin, PrepPass Founder · Verified against CompTIA Security+ (SY0-701) · How we review