Which certificate-based authentication method can be enabled so that users can log into the Service Portal?

Which certificate-based authentication method can be enabled so that users can log into the Service Portal?

• A. Common Access Card
• B. Personal Identity Verification
• C. Smart Card
• D. Digital Certificate

Answer: (A)

Certificate-based login works by presenting a digital certificate stored on a hardware token to prove who you are when accessing the Service Portal. The portal then validates that certificate against a trusted authority, and if it checks out, the user is authenticated. Common Access Card is a government-issued smart card that contains exactly this kind of certificate and is widely deployed for logging into government portals and services. Because it combines the physical card, the certificate, and the PIN in a single, widely-supported solution, it’s the standard choice to enable certificate-based authentication for a Service Portal in many environments. The other options describe related concepts (a federal standard like PIV, the broad category of smart cards, or the certificate itself) but do not represent the ready-to-use, portal-enabled method in the same way CAC does.

Certificate-based login works by presenting a digital certificate stored on a hardware token to prove who you are when accessing the Service Portal. The portal then validates that certificate against a trusted authority, and if it checks out, the user is authenticated.

Common Access Card is a government-issued smart card that contains exactly this kind of certificate and is widely deployed for logging into government portals and services. Because it combines the physical card, the certificate, and the PIN in a single, widely-supported solution, it’s the standard choice to enable certificate-based authentication for a Service Portal in many environments. The other options describe related concepts (a federal standard like PIV, the broad category of smart cards, or the certificate itself) but do not represent the ready-to-use, portal-enabled method in the same way CAC does.