题目内容

A () could be used to transmit data from a smartphone to a wireless headset.

A. WAN
B. MAN
C. LAN
D. PAN

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To connect to a LAN, a computer requires network circuitry, sometimes referred to as a ().

A. sound card
B. graphics card
C. memory card
D. network interface card

The () acts as a central distribution point for getting data to its destination.

A. modem
B. switch
C. router
D. gateway

Bluetooth can be used to link devices in a ().

A. WAN
B. MAN
C. LAN
D. PAN

The speed of a computer network connection is usually rated in ().

A. Hz
B. Mbps
C. KB
D. GB

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