单项选择题
A.Run the Ntdsutil.exe DS Behavior commands on DC3.
B.Run the Dnscmd.exe /ZoneResetType command on DC3.
C.Reinstall Active Directory Domain Services on DC3 as a writable domain controller.
D.Create a custom application directory partition on DC1. Configure the partition to store Active Directory-integrated z
单项选择题 Your company has two domain controllers that are configured as internal DNS servers. All zones on the DNS servers are Active Directory-integrated zones. The zones allow all dynamic updates. You discover that the contoso.com zone has multiple entries for the host names of computers that do not exist. You need to configure the contoso.com zone to automatically remove expired records. What should you do（）
单项选择题 Your company， Contoso， Ltd.， has a main office and a branch office. The offices are connected by a WAN link. Contoso has an Active Directory forest that contains a single domain named ad.contoso.com. The ad.contoso.com domain contains one domain controller named DC1 that is located in the main office. DC1 is configured as a DNS server for the ad.contoso.com DNS zone. This zone is configured as a standard primary zone. You install a new domain controller named DC2 in the branch office. You install DNS on DC2. You need to ensure that the DNS service can update records and resolve DNS queries in the event that a WAN link fails. What should you do（）
单项选择题 Your network contains a server that runs Windows Server 2008 R2. The server is configured as an enterprise root certification authority （CA）. You have a Web site that uses x.509 certificates for authentication. The Web site is configured to use a many-to-one mapping. You revoke a certificate issued to an external partner. You need to prevent the external partner from accessing the Web site. What should you do（）