单项选择题
A.On each Web server， configure a host header value of www.contoso.com.
B.On each Web server， configure a custom HTTP header value of www.contoso.com.
C.On Server1， create two host （A） records for www.contoso.com.
D.On Server1， create a _roundrobin._tcp.contoso.com service locator （SRV） record for each server that has a port value of 80.
单项选择题 You have 10 DNS servers that run Windows Server 2003 Service Pack 2 （SP2）. You need to automate the management of the DNS server. Which tool should you use？（）
单项选择题 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？（）
单项选择题 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？（）