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（）
A.the root hints of the DNS server
B.the security settings of the zone
C.the Windows Firewall settings on the DNS server
D.the zone transfer settings of the zone
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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（）
A.dnscmd.exe dc2.contoso.com /createdirectorypartition dns.contoso.com
B.dnscmd.exe dc2.contoso.com /zoneresettype contoso.com /dsprimary
C.dnslint.exe /ql
D.repadmin.exe /syncall /force
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（）
A.Create a DNS forwarder.
B.Create a DNS delegation.
C.Configure root hint servers.
D.Configure an alternate DNS server on all client computers.
You need to force a domain controller to register all service location （SRV） resource records in DNS.
Which command should you run（）
A.ipconfig.exe /registerdns
B.net.exe stop dnscache & net.exe start dnscache
C.net.exe stop netlogon & net.exe start netlogon
D.regsvr32.exe dnsrslvr.dll
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（）
A.Configure dynamic updates.
B.Configure aging and scavenging.
C.Create a scheduled task that runs the Dnscmd /ClearCache command.
D.Create a scheduled task that runs the Dnscmd /ZoneReload contoso.com command.
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（）
A.Set the scavenging period of Server1 to 0 days.
B.Modify the Server Aging/Scavenging properties.
C.Configure the aging properties for the contoso.com zone.
D.Convert the contoso.com zone to an Active Directory-integrated zone.
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（）
A.From the configuration directory partition of the forest， modify the tombstone lifetime.
B.From the configuration directory partition of the forest， modify the garbage collection interval.
C.From the aging properties of the zone， modify the no-refresh interval and the refresh interval.
D.From the start of authority （SOA） record of the zone， modify the refresh interval and the expire interval.
Your network contains an Active Directory domain named contoso.com. The domain contains the servers shown in the following table.
Server name Operating system Role
DC1 Windows Server 2008 Domain controller
DC2 Windows Server 2008 R2 Domain controller
DNS1 Windows Server 2008 DNS server DNS2 Windows Server 2008 R2 DNS server
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（）
A.Change the functional level of the forest.
B.Change the functional level of the domain.
C.Upgrade DC1 to Windows Server 2008 R2.
D.Upgrade DNS1 to Windows Server 2008 R2.
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（）
A.Modify the replication scope for the contoso.com zone.
B.Flush the DNS cache and enable cache locking on RODC1.
C.Configure conditional forwarding for the contoso.com zone.
D.Modify the zone transfer settings for the contoso.com zone.
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（）
A.From the command prompt， use the netsh tool.
B.From the command prompt， use the dnscmd tool.
C.From DNS Manager， modify the properties of the GlobalNames zone.
D.From DNS Manager， modify the advanced settings of the DNS server.
Your network contains an Active Directory domain named contoso.com. The domain contains a domain controller named DC1. DC1 hosts a standard primary zone for contoso.com.
You discover that non-domain member computers register records in the contoso.com zone.
You need to prevent the non-domain member computers from registering records in the contoso.com
zone. All domain member computers must be allowed to register records in the contoso.com zone. What should you do first（）
A.Configure a trust anchor.
B.Run the Security Configuration Wizard （SCW）.
C.Change the contoso.com zone to an Active Directory-integrated zone.
D.Modify the security settings of the %SystemRoot%\System32\Dns folder.
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