正确答案: A

区域0

题目：采用OSPF协议配置路由协议时，主干区域为______。

解析：解析：采用OSPF协议配置路由1办议时，主干区域为区域0。

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学习资料的答案和解析：

[单选题]● Windows provides a user-friendly graphical （71） including pop-up menus, scroll bars, dialogue boxes, icons and etc.（71）

interface

解析：答案分析：试题（71）分析

[多选题]______

姓名LIKE'李%'

[多选题]XP是一种轻量级(敏捷)、高效、低风险、柔性、可预测的、科学的软件开发方式，其四大价值观包括沟通、简单、______。

反馈和勇气

解析：解析：本题考查软件过程基础知识。

[单选题]Frame. Relay is simplified form. of(51), similar in principle to(52), in which synchronous, frames of data are routed to different destinations depending on header information.Packets are routed throught one or more Virtual Circuits known as(53). Most Virtual Circuits are(54), which means that the network provider sets up all DLCI connections at subscription time.(55)are also part of the Frame. Relay specification. They privide a link that only lasts only as long as the session.

Packet Switching

[单选题]

B． 3 C． 8 D． 15

8