单项选择题
A. From Windows Firewall， add an exception
B. From windows Firewall enable the block all incoming connections option
C. From the Windows Firewall with Advanced Security snap-in， create an inbound rule
D. From the Windows Firewall with Advanced Security snap-in， create an outbound rule.
单项选择题 YourcompanyusesNetworkAccessProtection(NAP)toenforcepoliciesonclientcomputerstahtconnecttothenetwork.ClientcomputersrunWindowsVista.AGroupPolicyisusedtoconfigureclientcomputerstoobtainupdatesfromWSUS.CompanypolicyrequiresthatupdateslabeledimportantandCriticalmustbeappliedbeforeclientcomputerscanaccessnetworkresources.Youneedtoensurethatclientcomputersmeetthecompanypolicyrequirement.Whatshouldyoudo（）
单项选择题 Your company has a main office and a branch office. The main office has a domain controller named DC1 that hosts a DNS primary zone. The branch office has a DNS server named SRV1 that hosts a DNS secondary zone. All client computers are configured to use their local server for DNS resolution.You change the IP address of an existing server named SRV2 in the main office.You need to ensure that SRV1 reflects the change immediately.What should you do？（）
单项选择题 Yourcompanyhasasingleactivedirectorydomain.Thecompanynetworkisprotectedbyafirewall.RemoteusersconnecttoyournetworkthroughaVPNserverbyusingPPTP.WhentheuserstrytoconnecttotheVPNserver，theyreceivethefollowingerrormessage：Error721：Theremotecomputerisnotresponding.YouneedtoensurethatuserscanestablishaVPNconnection.Whatshouldyoudo？（）