Which of the following items does not provide physical protection?
A.
Smart card
B.
Token
C.
Biometric device
D.
Single sign-on system
Explanation:
Each of the other answers contain technologies or devices that can be
used for identification and authorization purposes for access control into a
facility or sensitive area. Single sign-on technologies are used to logically
control users access to network resources, which does not fall under the physical
security umbrella.