题目内容

写出目前三层MPLSVPN组网中涉及路由器的逻辑名称及其主要功能。

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什么是结疤？产生的原因是什么？

You work as the enterprise exchange administrator at Xxx .Xxx is using Microsoft Exchange Server 2010 as their messaging solution.The Xxx network has two Mailbox servers named XXX-EX01 and XXX-EX02.During the course of the week you receive an instruction from the CIO to determine the amount of time it takes for the delivery of messages between XXX-EX01 and XXX-EX02.Which of the following commands can be used to achieve this goal？（）

A. You must use the Test-ServiceHealth cmdlet.
B. You must use the Test-Mailflow cmdlet.
C. You must use the Get-MailboxStatistics.
D. You must use the Get-MailboxDatabase.

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人民群众之所以（），就是因为共产党是为人民服务的

A. 理解
B. 信任
C. 选择
D. 支持

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（）和交换机工作在OSI参考模型的物理层和数据链路层。

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