You are preparing the supporting network infrastructure for the upgrade to Exchange Server 2003. You want to accomplish this upgrade by using the minimum amount of administrative effort.Which two actions should you perform？（）

多项选择题Youneedtoconfigureconnectorsbetweeneachroutinggroup.Whataretwopossiblewaystoachievethisgoal？（）

A.Create and configure SMTP connectors between the routing groups. Do not create additional connectors between the routing groups
B.Create and configure routing group connectors between the routing groups. Do not create additional connectors between routing groups
C.Create and configure low-cost group connectors and high-cost SMTP connectors between the routing groups
D.Create and configure high-cost routing group connectors and low-cost SMTP connectors between the routing groups

单项选择题YouneedtoconfiguretheDNSresourcerecordsforincominge-mailmessagesfromtheInternet.Whatshouldyoudo？（）

A.Configure mailbox （MB） resource records in the external DNS domain. Configure each record so that it has the same refresh interval
B.Configure mailbox （MB） resource records in the external DNS domain. Configure each record so that it has the same default Time to Live （TTL） interval
C.Configure mail exchanger （MX） resource records in the external DNS domain. Configure each record to have the same preference and a different mail exchanger
D.Configure mail exchanger （MX） resource records in the external DNS domain. Configure each record to have the same preference and the same mail exchanger

单项选择题YouneedtodesignsecurityformessagesexchangedbetweenNorthwindTradersemployeesanditsvendors.Whatshouldyoudo？（）

A.Require employees to access e-mail only over connections that use SSL
B.Place Exchange mailbox stores on NTFS volumes. Use Encrypting File System （EFS） to encrypt the stores
C.Use the internal certification authority （CA） to issue certificates to all employees. Require employees to digitally sign outbound e-mail
D.Use the internal certification authority （CA） to issue certificates to all employees and vendors. Instruct employees and vendors to use secure MIME to encrypt all e-mail sent between them

单项选择题Youneedtodesignastrategyforprovidinge-mailaccesstothesubsidiaryusers.Whatshouldyoudo？（）

A.Deploy POP3 and IMAP4 services on Exchange front-end servers. Make the front-end servers accessible from the Internet by means of POP3， IMAP4， and SMTP only
B.Deploy Microsoft Outlook Web Access on Exchange mailbox servers. Make the mailbox servers accessible from the Internet by means of HTTPS and SMTP only
C.Deploy Microsoft Outlook Web Access on Exchange front-end servers. Make the front-end servers accessible from the Internet by means of HTTPS only
D.Deploy an additional Exchange mailbox server that contains all subsidiary mailboxes. Deploy Microsoft Outlook Web Access on the server. Make the server accessible from the Internet by means of HTTPS only

单项选择题YouneedtodesignanadministrativemodelfortheExchangeServerenvironment.Whatshouldyoudo？（）

A.Create a single organizational unit （OU）. Place the user accounts for each office in the OU. Delegate control over the OU to the office’s server administrators and the central IT staff
B.Create a single Exchange administrative group. Place all Exchange servers into that administrative group. Assign permissions for the administrative group to the officer’s server administrators and the central IT staff
C.Create an Exchange administrative group for each office. Place the Exchange severs for each office into that office’s administrative group. Assign permissions for the administrative group to the office’s server administrators. Allow the central IT staff to manage user mailboxes
D.Create an organizational unit （OU） for each office. Place the user accounts for each office into the appropriate OU. Delegate control over each OU to the office’s server administrators. Allow the central IT staff to manager user mailboxes