Which statement is NOT a listed method of positive identification?

• A. Username and password
• B. Bar code reader
• C. Biometric verification
• D. Proximity badge reader

Answer: (D)

Positive identification is about proving who a person is by linking them to a specific identity in the system. A username and password proves knowledge of credentials, a bar code reader reads an identifier that the system can map to a user, and biometric verification checks an inherent trait to confirm identity. A proximity badge reader, on the other hand, mainly detects the presence of a badge. It shows that a badge is present, but by itself it doesn’t actively verify who is presenting it or confirm that the badge holder is who they claim to be. Without an additional verification step, this makes it less robust as a direct method of positive identification. That’s why, in this context, the proximity badge reader is not considered a listed method of positive identification.