Your network contains an Active Directory domain named contoso.com.
You create a GlobalNames zone. You add an alias (CNAME) resource record named
Server1 to the zone. The target host of the record is server2.contoso.com.
When you ping Server1, you discover that the name fails to resolve.
You successfully resolve server2.contoso.com.
You need to ensure that you can resolve names by using the GlobalNames zone.
What should you do?

Your company has a main office and a branch office.
The network contains an Active Directory domain named contoso.com. The DNS zone for
contoso.com is configured as an Active Directory-integrated zone and is replicated to all
domain controllers in the domain.
The main office contains a writable domain controller named DC1. The branch office
contains a read- only domain controller (RODC) named RODC1. All domain controllers run
Windows Server 2008 R2 and are configured as DNS servers.
You uninstall the DNS server role from RODC1.
You need to prevent DNS records from replicating to RODC1.
What should you do?

Your network contains an Active Directory domain named contoso.com. The domain
contains the servers shown in the following table.

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?

Your network contains a domain controller that is configured as a DNS server. The server
hosts an Active Directory-integrated zone for the domain.
You need to reduce how long it takes until stale records are deleted from the zone.
What should you do?

You have an Active Directory domain named contoso.com.
You have a domain controller named Server1 that is configured as a DNS server.
Server1 hosts a standard primary zone for contoso.com. The DNS configuration of Server1
is shown in the exhibit. (Click the Exhibit button.)

You discover that stale resource records are not automatically removed from the
contoso.com zone.
You need to ensure that the stale resource records are automatically removed from the
contoso.com zone.
What should you do?

Your network contains an Active Directory domain named contoso.com.
You remove several computers from the network.
You need to ensure that the host (A) records for the removed computers are automatically
deleted from the contoso.com DNS zone.
What should you do?

You need to force a domain controller to register all service location (SRV) resource records
in DNS.
Which command should you run?

Your network contains an Active Directory domain named contoso.com.

You plan to deploy a child domain named sales.contoso.com.
The domain controllers in sales.contoso.com will be DNS servers for sales.contoso.com.
You need to ensure that users in contoso.com can connect to servers in sales.contoso.com
by using fully qualified domain names (FQDNs).
What should you do?

Your network contains a single Active Directory domain named contoso.com. The domain
contains two domain controllers named DC1 and DC2 that run Windows Server 2008 R2.
DC1 hosts a primary zone for Contoso.
com. DC2 hosts a secondary zone for contosto.com.
On DC1, you change the zone to an Active Directory-integrated zone and configure the zone
to accept secure dynamic updates only.
You need to ensure that DC2 can accept secure dynamic updates to the contoso.com zone.
Which command should you run?

Your network contains an Active Directory domain named contoso.com.
You run nslookup.exe as shown in the following Command Prompt window.

You need to ensure that you can use Nslookup to list all of the service location (SRV)
resource records for contoso.com.
What should you modify?