单项选择题

You need to design access to e-mail by Internet users. What should you do？（）

A.Configure front-end servers to use HTTP to communicate with back-end servers
B.Configure the internal firewall to allow IPSec traffic between front-end and back-end Exchange servers
C.Require all users to encrypt all outbound e-mail messages
D.Issue digital certificates to all remote users. Require the certificates to be used when authenticating to Outlook Web Access

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单项选择题

You need to design the deployment of antivirus software. What should you do？（）

A.Install the antivirus software on each mailbox storage server
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A.Configure the front-end servers in each branch office to be members of a new Active Directory site
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C.Configure two back-end servers to be members of a Network Load Balancing cluster. Configure Network Load Balancing for inbound RPC connections
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You need to design a strategy for managing the messages that are sent to the customer service mailboxes. What should you do？（）

A.Create a separate storage group and database to contain the customer service mailboxes. Enable circular logging for this storage group
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