超星 - section 3A.xls - 查题吧

单选题

The Internet is the world’s largest ().

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

单选题

School computer labs and home networks are examples of ()s.

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

单选题

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

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

单选题

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

单选题

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

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

单选题

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

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

单选题

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

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

多选题

Which of the following are the topology of network?

A. star
B. relation
C. tree
D. mesh

1