The network layer provides services to the ( ) layer. It can be based on either virtual circuits or datagrams .In both cases, its main job is routing packets from the source to the destination. -题库考试答案搜索网

The network layer provides services to the ( ) layer. It can be based on either virtual circuits or datagrams .In both cases, its main job is routing packets from the source to the destination.

单选题

2022-06-03 00:10

A、transport
B、application
C、presentation
D、data link

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正确答案

A

试题解析

网络层为传输（transport)层提供服务，它基于虚电路或数据报方式，其主要工作是对源节点的数据包进行路由选择，转发到目的节点。

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