SY0-501 Question #451: Real Exam Question with Answer & Explanation

Question

Which of the following would provide additional security by adding another factor to a smart card?

Options

• AToken
• BProximity badge
• CPhysical key
• DPIN

Explanation

To enhance the security of a smart card, adding a PIN provides a second authentication factor by requiring both possession of the card and knowledge of a secret code. This creates a multi-factor authentication scheme, significantly improving access control.

Common mistakes.

• A. A token is a broad term for an authentication factor, but it doesn't specifically describe an additional factor that combines with a smart card to form multi-factor authentication in the way a PIN does for a 'something you know' component.
• B. A proximity badge is another form of 'something you have,' similar to a smart card, and therefore does not introduce a different type of authentication factor for multi-factor authentication.
• C. A physical key is also a 'something you have' factor, analogous to a smart card, and does not provide a distinct second factor for multi-factor authentication.

Concept tested. Multi-factor authentication with smart cards

Reference. https://learn.microsoft.com/en-us/windows/security/identity-protection/smart-cards/smart-card-authentication

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