Which of the following is a component of a Public Key Infrastructure (PKI)?

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Multiple Choice

Which of the following is a component of a Public Key Infrastructure (PKI)?

Explanation:
Public Key Infrastructure relies on a trusted authority to issue and manage certificates. The Certificate Authority is that trusted entity, signing digital certificates that bind a public key to a real identity. This creates a verifiable link: others can trust the key because they can check the certificate against the CA’s trusted signature, and they can rely on processes for revocation and renewal to maintain trust over time. The other options don’t provide this certificate-issuing and identity-binding role—encryption engines are general tools for encrypting data, data masking is about hiding sensitive information, and a network firewall protects network perimeters rather than manage keys and certificates.

Public Key Infrastructure relies on a trusted authority to issue and manage certificates. The Certificate Authority is that trusted entity, signing digital certificates that bind a public key to a real identity. This creates a verifiable link: others can trust the key because they can check the certificate against the CA’s trusted signature, and they can rely on processes for revocation and renewal to maintain trust over time. The other options don’t provide this certificate-issuing and identity-binding role—encryption engines are general tools for encrypting data, data masking is about hiding sensitive information, and a network firewall protects network perimeters rather than manage keys and certificates.

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