Networks can be interconnected by differ

考试题库2022-08-02 85

问题 Networks can be interconnected by different devices in the physical layer networks can be connected by _( )_ or hubs .which just move the bits from one network to an identical network. One layer up we find bridges and switches which operate at data link layer. They can accept _( )_ examine the MAC address and forward the frames to a different network while doing minor protocol translation in the process in me network layer ,we have routers that can connect two networks, If two networks have _( )_ network layer, the router may be able to translate between the packer formats. In the transport layer we find transport gateway, which can interface between two transport connections Finally, in the application layer, application gateways translate message _(请作答此空)_ .As an example, gateways between Internet e-mail and X.400 e-mail must _( )_ the e-mail message and change various header fields.A.syntaxB.semanticsC.languageD.format

选项

答案 B

解析

转载请注明原文地址:https://www.tihaiku.com/congyezige/2418643.html

本试题收录于：中级数据库系统工程师题库软件水平考试初中高级分类

中级数据库系统工程师

软件水平考试初中高级

相关试题推荐

随机试题

最新回复(0)

Networks can be interconnected by differ

中级数据库系统工程师

软件水平考试初中高级