题目内容

《铁路技术管理规程》（普速铁路部分）进站信号机应设在距进站最外方道岔尖轨尖端（顺向为警冲标）不小于（）m的地点。

A. 30
B. 40
C. 50
D. 60

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You have an Active Directory forest. You plan to deploy an Exchange Server 2010 organization that contains the following servers：.Two Edge Transport servers.Two Hub Transport servers You need to recommend changes to the organization to ensure that e-mail messages can be sent to the Internet if a single transport server fails. What should you recommend？（）

A. Configure shadow redundancy for the Hub Transport servers.
B. Implement failover clustering on both Hub Transport servers.
Configure both Edge Transport servers as source servers for a Send connector.
D. Create one mail exchange （MX） record and one SRV record for each Edge Transport server on the internal DNS zone.

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