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單項(xiàng)選擇題

Hardware locks, keypads on entry doors, badge readers, and biometric readers are all examplesof which of the following security types?（）

A.Physical
B.Logical
C.Software
D.Authentication

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單項(xiàng)選擇題

A crossover cable is MOST commonly associated with which of the following layers of the OSI model?（）

A.Session
B.Application
C.Network
D.Physical

單項(xiàng)選擇題

Which of the following describes what the number two represents in l00Base2 cabling?（）

A. Fiber
B. Coaxial cable
C. UTP
D. Twisted pair