单项选择题
A.Create a scope for the subnet 172.16.0.0/20. Configure the scope to use a starting IP address of 172.16.8.1 and an ending IP address of 172.16.15.254.
B.Create a scope for the subnet 172.16.0.0/21. Configure the scope to use a starting IP address of 172.16.0.1 and an ending IP address of 172.16.15.254.
C.Create a scope for the subnet 172.16.8.0/21. Configure the scope to use a starting IP address of 172.16.8.1 and an ending IP address of 172.16.10.254.
D.Create a scope for the subnet 172.17.0.0/16. Configure the scope to use a starting IP address of 172.17.0.1 and an ending IP address of 172.17.255.254.
单项选择题 Your network is configured as shown in the following diagram.You deploy an enterprise certification authority （CA） on the internal network. You also deploy a Microsoft Online Responder on the internal network. You need to recommend a secure method for Internet users to verify the validity of individual certificates. The solution must minimize network bandwidth. What should you recommend？（）
单项选择题 Your network contains an Active Directory forest named contoso.com. You plan to deploy a new child domain named branch.contoso.com. The child domain will contain two domain controllers. Both domain controllers will have the DNS Server server role installed.All users and computers in the branch office will be members of the branch.contoso.com domain.You need to plan the DNS infrastructure for the child domain to meet the following requirements： èEnsure resources in the root domain are accessible by fully qualified domain names. èEnsure resources in the child domain are accessible by fully qualified domain names. èProvide name resolution services in the event that a single server fails for a prolonged period of time. èAutomatically recognize when new DNS servers are added to or removed from the contoso.com domain. What should you include in your plan？（）
单项选择题 Your company has a main office and two branch offices. The main office is located in London. The branch offices are located in New York and Paris. Your network consists of an Active Directory forest that contains three domains named contoso.com， paris.contoso.com， and newyork.contoso.com. All domain controllers run Windows Server 2008 R2 and have the DNS Server server role installed. The domain controllers for contoso.com are located in the London office. The domain controllers for paris.contoso.com are located in the Paris office. The domain controllers for newyork.contoso.com are located in the New York office. A domain controller in the contoso.com domain has a standard primary DNS zone for contoso.com. Adomain controller in the paris.contoso.com domain has a standard primary DNS zone for paris.contoso.com. A domain controller in the newyork.contoso.com domain has a standard primary DNS zone for newyork.contoso.com. You need to plan a name resolution strategy for the Paris office that meets the following requirements： èIf a WAN link fails， clients must be able to resolve hostnames for contoso.com. èIf a WAN link fails， clients must be able to resolve hostnames for newyork.contoso.com. èThe DNS servers in Paris must be updated when new authoritative DNS servers are added tonewyork.contoso.com. What should you include in your plan？（）