You need to design an e-mail access strategy for remote users. What should you do? （） 

A.Create an administrative group for each office. Place each Exchange server that is managed by an office technician into that Office’s administrative group. Assign the central IT group full control over all administrative groups. Assign each office technician control over his or her office’s administrative groups
B.Create one administrative group. Place all Exchange servers in the administrative group. Assign the central IT group full control over the administrative group. Make each office technician a member fo the local Backup Operators group on each group they manage
C.Create an administrative group for each office. Place one Exchange server in each group. Assign the central IT group and each office technician full control over each administrative group
D.Create one administrative group for all Exchange front-end servers. Assign each office technician control over this administrative group. Create another administrative group for all Exchange back-end servers. Assign the central IT group control over this administrative group

A.Use the Exchange Task Wizard to migrate all the mailboxes to the Exchange 2003 server
B.Use the Exchange Mailbox Merge Wizard （Exmerge0 to migrate all the mailboxes to the Exchange 2003 server
C.Use the Exchange Server Migration Wizard to migrate all the mailboxes to the Exchange 2003 server
D.Export the contents of each mailbox to a .pst file. Create a new mailbox on the Exchange 2003 servers for each existing mailbox. Import the .pst file contents into each new mailbox

A.Configure the HTTP virtual server on the Exchange front-end server to require a secure connection. Instruct the sales personnel to use Microsoft Outlook Web Access to connect to the Exchange front-end server
B.Configure the back-end Exchange servers to use static ports for RPC connections. Open the required ports on the firewall. Install Microsoft Outlook 2003 on the portable computers and configure it to connect to the Exchange back-end server using a MAPI connection
C.Configure the Exchange front-end server to require secure connections from IMAP4 client computers. Install Microsoft Outlook 2003 on the portable computers and configure it to use a secure IMAP4 connection
D.Configure the Exchange servers to support RPC over HTTPS. Install Microsoft outlook 2003 on the portable computers and configure it to use RPC over HTTPS