Reduce the Refresh interval for the zone.
Enable aging and scavenging for the server.
Reduce the No-Refresh interval for the zone.
Open the DNS snap-in， right -click DC1， and select Update Server Data Files.
第1题：
You have a domain controller named DC1 that runs Windows Server 2008 R2. DC1 is configured as a DNS server for contoso.com. You install the DNS Server server role on a member server named Server1 and then you create a standard secondary zone for contoso.com. You configure DC1 as the master server for the zone. You need to ensure that Server1 receives zone updates from DC1. What should you do（）
第2题：
You have a DNS server that runs Windows Server 2003 Service Pack 2 (SP2). You need to prevent the DNS server from resolving host names on the Internet. What should you do?（）
第3题：
Your network contains a single Active Directory domain named contoso.com.You have a domain controller named DC1 that runs Windows Server 2003 Service Pack 2 （SP2） that has the DNS Server Windows component installed. You have a member server named Server1 that runs Windows Server 2003 SP2.Server1 fails to update its host （A） record for the contoso.com domain. You need to verify that DNS requests from Server1 are sent to DC1. What should you do？（）
第4题：
Install the POP3 service on the DNS server.
Modify the DNS Server service dependencies.
Modify the DNS Server service Recovery options.
Install the Universal Description，Discovery，and Integration（UDDI）services on the DNS server.
第5题：
You have a DNS server named Server1 that runs Windows Server 2003 Service Pack 2 (SP2). Server1 is a stand-alone server. You perform a full backup of Server1 every day. A DNS zone on Server1 is deleted by using the DNS snap-in. You need to restore the DNS zone on Server1. What should you do?（）
第6题：
Your network contains an Active Directory domain named contoso.com. The domain contains the servers shown in the following table. Server name Operating system Role DC1 Windows Server 2008 Domain controller DC2 Windows Server 2008 R2 Domain controller DNS1 Windows Server 2008 DNS server DNS2 Windows Server 2008 R2 DNS server The functional level of the forest is Windows Server 2003. The functional level of the domain is Windows Server 2003. DNS1 and DNS2 host the contoso.com zone. All client computers run Windows 7 Enterprise. You need to ensure that all of the names in the contoso.com zone are secured by using DNSSEC. What should you do first（）
第7题：
You Have DNS server named DC1 that runs Windows Server 2003 Service Pack 2 (SP2). DC1 hosts an Active Directory-integrated zone that has dynamic updates enabled. You enable aging and scavenging for the zone. You discover that stale records are not being removed from the zone. You need ensure that stale records are removed from the zone. What should you do?（ ）
第8题：
You have a DNS server that runs Windows Server 2003 Service Pack 2 (SP2). You enable DNS debug logging by using the default settings. You create a primary zone named contoso.com. You need to view all the DNS responses that the DNS server has sent. What should you do?（）
第9题：
Netdiag.exe
Netcap.exe
Netsh.exe
Tracert.exe
第10题：
On Server1， add a conditional forwarder.
On DC1， modify the permissions of contoso.com zone.
On DC1， modify the zone transfer settings for the contoso.com zone.
Add the Server1 computer account to the DNSUpdateProxy group.