Which option does not require adding a special reader to a PC for access control?

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Multiple Choice

Which option does not require adding a special reader to a PC for access control?

Explanation:
A USB token is read through the computer’s USB port, so no extra reader hardware is needed. It plugs in like a USB device and provides credentials directly to the system (such as a hardware OTP, a digital certificate, or a FIDO/U2F key). In contrast, magnetic stripe cards and smart cards require dedicated card readers to access their data, which means adding a reader to the PC. The “All of the above” option would only be correct if none of the methods needed a reader, which isn’t the case.

A USB token is read through the computer’s USB port, so no extra reader hardware is needed. It plugs in like a USB device and provides credentials directly to the system (such as a hardware OTP, a digital certificate, or a FIDO/U2F key). In contrast, magnetic stripe cards and smart cards require dedicated card readers to access their data, which means adding a reader to the PC. The “All of the above” option would only be correct if none of the methods needed a reader, which isn’t the case.

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