[单项选择]Your company has an active directory forest that has five domains. All DNS servers are domain controllers. You need to ensure that users from all domains are able to access a web server named App1 by browsing http://App1. What should you do?（）
A. Configure and enable DFS-R on the App1 Web Server.
B. Create a host (AAAA) record for the App1 Web server in the DNS zone for the forest root domain.
C. Create a zone named GlobalNames on a DNS server. Replicate the GloballNames zone to all domain controllers in the forest. Create a host (A) record for the App1 Web server in the zone.
D. Create a zone named LegacyWNS on a DNS server. Replicate the LegacyWNS zone to all domain controllers in the forest. Create a host (A) record for the App1 Web server in the zone.

[单项选择]your company has a single active directory forest that has a domain in North America named na.contoso.com and a domain in south America named sa.contoso.com. The client computers run windows vista. You need to configure the client computes in north America office to improve the name resolution response time for resources in the south ameirca offica. What should you do?（）
A. Configure a new GPO that disables the Local-Link multicast name resolution feature. Apply the policy to all the client computes in the north America office.
B. Configure a new GPO that enables the local-Link Multicast name resolution feature. Apply the policy to all the client computers in the north America office.
C. Configure a new GPO that configures the DNS suffix search list option to sa. Contoso.com, na.contoso.com apply the policy to all the client computers in the north America office.
D. Configure the priority value for the SRV records on each of the north America domain controllers to 5.

[单项选择]Your company has a single active directory forest that has an active directory domain named na.contoso.com.zone. you have enabled DNS scavenging on server1. Three weeks later, you notice that the stale resource records remain in na.contoso.com. you need to ensure that the stale resource records are removed from na.contoso.com. what should you do?（）
A. Stop and restart the DNS service on server1.
B. Enable DNS scavenging on the na.contoso.com zone.
C. Run the dnscmd server1 /ageallrecords command on server1/.
D. Run the dnscmd server1 /startscavenging command on server1.

[单项选择] Your company has a single Active Directory forest that has an Active Directory domain named na.contoso.com. A server named Server1 runs the DNS Server server role. You notice stale resource records in the na.contoso.com zone. You have enabled DNS scavenging on Server1. Three weeks later, you notice that the stale resource records remain in na.contoso.com. You need to ensure that the stale resource records are removed from na.contoso.com. What should you do？（）
A. Stop and restart the DNS Server service on Server1.
B. Enable DNS scavenging on the na.contoso.com zone.
C. Run the dnscmd Server1 /AgeAllRecords command on Server1.
D. Run the dnscmd Server1 /StartScavenging command on Server1.

[单项选择]Your company has an active directory forest. The corporate network uses DHCP to configure client computer IP addresses. The DHCP server has a DHCP client reservation for a portable computer named WKS1. You install a second DHCP server on the network. You need to ensure that WKS1 receives the DHCP reservation from the DHCP service. What should you do?（）
A. Run the ipconfig /renew command on WKS1.
B. Run the netsh add helper command on WKS1.
C. Add the DHCP reservation for WKS1 to the second DHCP server.
D. Add the DHCP servers to the RAS and IAS servers group in the active directory domain.

[单项选择]Your company has an Active Directory forest. All domain controllers run the DNS Server server role.The company plans to decommission the WINS service.You need to enable forest-wide single name resolution.What should you do？（）
A. Enable WINS-R lookup in DNS.
B. Create Service Location (SRV) records for the single name resources.
C. Create an Active Directory-integrated zone named LegacyWINS. Create host (A) records for the single name resources.
D. Create an Active Directory-integrated zone named GlobalNames. Create host (A) records for the single name resources.

[多项选择]our company has a single active directory forest that has six domains. All DNS servers in the forest run windows serve 2008. You need to ensure that all public DNS queries are channeled though a single-caching-only DNS server.Which two actions should you perform? （）
A. Disable the root hints.
B. Enable BIND secondaries.
C. Configure a forwarder to the caching DNS server.
D. Configure a GlobalNames host (A) record for the hostname of the caching DNS server.

[单项选择]Your company has active directory certificate services (AD CS) and network access protection (NAP) deployed on the network. You need to ensure that NAP policies are enforced on portable computers that use a wireless connection to access the network. What should you do?（）
A. Configure all access points to use 802.1x authentication.
B. Configure all protable computers to use MS-CHAP v2 authentication.
C. Use the group policy management console to access the wireless group policy settings, and enable the prevent connections to ad-hoc network option.
D. Use the group policy management console to access the wireless group policy settings, and disable the prevent connections to infrastructure networks option.

[单项选择]Your company has Active Directory Certificate Services (AD CS) and Network Access Protection (NAP) deployed on the network.You need to ensure that NAP policies are enforced on portable computers that use a wireless connection to access the network.What should you do？（）
A. Configure all access points to use 802.1X authentication.
B. Configure all portable computers to use MS-CHAP v2 authentication.
C. Use the Group Policy Management Console to access the wireless Group Policy settings, and enable the Prevent connections to ad-hoc networks option.
D. Use the Group Policy Management Console to access the wireless Group Policy settings, and disable the Prevent connections to infrastructure networks option.