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单项选择题Your company has a server named Server1 that runs a Server Core installation of Windows Server 2008， and the DNS Server server role. Server1 has one network interface named Local Area Connection. The static IP address of the network interface is configured as 10.0.0.1. You need to create a DNS zone named local.contoso.com on Server1. Which command should you use？（）

A.ipconfig /registerdns：local.contoso.com
B.dnscmd Server1 /ZoneAdd local.contoso.com /DSPrimary
C.dnscmd Server1 /ZoneAdd local.contoso.com /Primary /file local.contoso.com.dns
D.netsh interface ip v4 set dnsserver name= local.contoso.com static 10.0.0.1 primary

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1.单项选择题Your company has two servers that run Windows Server 2008 named Server2 and Server3. Both servers have the DNS Server server role installed. Server3 is configured to forward all DNS requests to Server2. You update a DNS record on Server2. You need to ensure that Server3 is able to immediately resolve the updated DNS record. What should you do？（）

A.Run the dnscmd . /clearcache command on Server3.
B.Run the ipconfig /flushdns command on Server3.
C.Decrease the Time-to-Live （TTL） on the Start of Authority （SOA） record of na.contoso.com to 15 minutes.
D.Increase the Retry Interval value on the Start of Authority （SOA） record of na.contoso.com to 15 minutes.

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2.多项选择题Your company has a single Active Directory forest that has six domains. All DNS servers in the forest run Windows Server 2008.You need to ensure that all public DNS queries are channeled through a single-caching-only DNS server. Which two actions should you perform？（Each correct answer presents part of the solution.（）

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.

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3.单项选择题Your network consists of a single Active Directory domain. The domain contains a server named Server1 that runs Windows Server 2008.All client computers run Windows Vista. All computers are members of the Active Directory domain. You assign the Secure Server （Require Security） IPsec policy to Server1 by using a Group Policy object（GPO）. Users report that they fail to connect to Server1.You need to ensure that users can connect to Server1. All connections to Server1 must be encrypted. What should you do？（）

A.Restart the IPsec Policy Agent service on Server1.
B.Assign the Client （Respond Only） IPsec policy to Server1.
C.Assign the Server （Request Security） IPsec policy to Server1.
D.Assign the Client （Respond Only） IPsec policy to all client computers.

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4.单项选择题Your company has computers in multiple locations that use IPv4 and IPv6. Each location is protected by a firewall that performs symmetric NAT. You need to allow peer-to-peer communication between all locations. What should you do？（）

A. Configure dynamic NAT on the firewall.
B. Configure the firewall to allow the use of Teredo.
C. Configure a link local IPv6 address for the internal interface of the firewall.
D. Configure a global IPv6 address for the external interface of the firewall.

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5.多项选择题Your network uses IPv4.You install a server that runs Windows Server 2008 at a branch office.The server is configured with two network interfaces. You need to configure routing on the server at the branch office.Which two actions should you perform？（Each correct answer presents part of the solution.（）

A.Install the Routing and Remote Access Services role service.
B.Run the netsh ras ip set access ALL command.
C.Run the netsh interface ipv4 enable command.
D.Enable the IPv4 Router Routing and Remote Access option.

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6.单项选择题You have a DHCP server that runs Windows Server 2008. You restore the DHCP database by using a recent backup. You need to prevent DHCP clients from receiving IP addresses that are currently in use on the network. What should you do？（）

A.Add the DHCP server option 15.
B.Add the DHCP server option 44.
C.Set the Conflict Detection value to 0.
D.Set the Conflict Detection value to 2.

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7.单项选择题You have a DHCP server that runs Windows Server 2008. The DHCP server has two network connections named LAN1 and LAN2.You need to prevent the DHCP server from responding to DHCP client requests on LAN2. The server must continue to respond to non-DHCP client requests on LAN2. What should you do？（）

A.From the DHCP snap-in， modify the bindings to associate only LAN1 with the DHCP service.
B.From the DHCP snap-in， create a new multicast scope.
C.From the properties of the LAN1 network connection， set the metric value to 1.
D.From the properties of the LAN2 network connection， set the metric value to 1.

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8.单项选择题You have a DHCP server that runs Windows Server 2008.You need to reduce the size of the DHCP database. What should you do？（）

A.From the DHCP snap-in， reconcile the database.
B.From the folder that contains the DHCP database， run jetpack.exe dhcp.mdb temp.mdb.
C.From the properties of the dhcp.mdb file， enable the File is ready for archiving attribute.
D.From the properties of the dhcp.mdb file， enable the Compress contents to save disk space attribute.

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9.单项选择题You have a DHCP server named Server1 and an application server named Server2. Both servers run Windows Server 2008. The DHCP server contains one scope.You need to ensure that Server2 always receives the same IP address. Server2 must receive its DNS settings and its WINS settings from DHCP. What should you do？（）

A.Create a multicast scope.
B.Assign a static IP address to Server2.
C.Create an exclusion range in the DHCP scope.
D.Create a DHCP reservation in the DHCP scope.

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10.单项选择题Your company uses DHCP to lease IPv4 addresses to computers at the main office.A WAN link connects the main office to a branch office. All computers in the branch office are configured with static IP addresses. The branch office does not use DHCP and uses a different subnet. You need to ensure that the portable computers can connect to network resources at the main office and the branch office.How should you configure each portable computer？（）

A.Use as tatic IPv4 address in the range used at the branch office.
B.Use an alternate configuration that contains a staticI Paddress in the range used at the main office.
C.Use the address that was assigned by the DHCP server as astatic IP address.
D.Use an alternate configuration that contains a staticI Paddress in the range used at the branch office.

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