单项选择题
A.将重试间隔更改为12小时
B.将默认最小"保存时间" (TTL)更改为2天
C.将刷新间隔更改为2天
D.将过期间隔更改为12小时
单项选择题 Your network contains a single Active Directory domain named contoso.com. The functional level of the domain is Windows 2000 mixed. You have a domain controller named DC1 that runs Windows Server 2003 Service Pack 2 (SP2). DC1 hosts a standard primary zone for contoso.com. You need to ensure that only computers in the contoso.com domain can register host records in the contoso.com zone. What should you do?（）
单项选择题 Your network consists of a single Active Directory domain named contoso.com. All servers run Windows Server 2003 Service Pack 2 (SP2). You deploy a Web server named Server1. Users access the server by using the URL http://server1.contoso.com. You need to create a new resource record that will allow users to access the server by using the URL http://www.contoso.com. The solution must prevent the need to modify the new record if the IP address of Server1 changes. Which type of resource record should you configure?（）
单项选择题 Your company has a single Active Directory domain named contoso.com. All servers in the domain run Windows Server 2003 Service Pack 2 (SP2). You have two DNS servers named DNS1 and DNS2. DNS1 hosts an Active Directory-integrated zone for contoso.com. DNS2 hosts a standard secondary zone for contoso.com. You need to monitor the total number of zone transfer requests. What should you do?（）
