【单选题】【消耗次数：1】
在ISO/OSI参考模型中，网络层的主要功能是（）。
①
提供可靠的端—端服务，透明地传送报文
②
路由选择、拥塞控制与网络互连
③
在通信实体之间传送以帧为单位的数据
④
数据格式变换、数据加密与解密、数据压缩与恢复
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相关题目
【单选题】
在OSI/RM参考模型中，网络层的主要功能是（ ）。
①
组织两个会话进程之间的通信，并管理数据的交换
②
数据格式变换、数据加密与解密、数据压缩与恢复
③
路由选择、拥塞控制与网络互连
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确定进程之间通信的性质，以满足用户的需要
【单选题】
在OSI/RM参考模型中，网络层的主要功能是（ ）。
①
组织两个会话进程之间的通信，并管理数据的交换
②
数据格式变换、数据加密与解密、数据压缩与恢复
③
路由选择、拥塞控制与网络互连
④
确定进程之间通信的性质，以满足用户的需要
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