题目内容

The purpose of a router is to examine incoming packets, choose the best path for them through the network, and.

A. then let them wait there for some time
B. then change the information coming from the application layer
C. then switch them to the proper outgoing ports
D. then put then to another router

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is the best transfer media at present.

A. Optical fiber
B. Coaxial cable
C. Twisted pair
D. Radio

can select the best path to route a message.

A. NIC
Bridge
C. Switch
D. Router

have limited access to the resources found on the network.

A. Clients
B. Administrators
C. Nodes
D. Servers

下列属于无差异营销策略优点的是( )。

A. 有利于降低市场竞争的激烈程度
B. 有利于分散企业的风险
C. 有利于获得成本上的经济性
D. 细小市场的顾客需求可以得到满足