单项选择题You have a DHCP server that runs Windows Server 2008 R2.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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3.单项选择题Your company has four DNS servers that run Windows Server 2008 R2. Each server has a static IP address.You need to prevent DHCP from assigning the addresses of the DNS servers to DHCP clients.What should you do?()

A. Create a new scope for the DNS servers.
B. Create a reservation for the DHCP server.
C. Configure the 005 Name Servers scope option.
D. Configure an exclusion that contains the IP addresses of the four DNS servers.

4.单项选择题You have a Windows Server 2008 R2 computer that has an IP address of 172.16.45.9/21.The server is configured to use IPv6 addressing.You need to test IPv6 communication to a server that has an IP address of 172.16.40.18/21.What should you do from a command prompt?()

A. Type ping 172.16.45.9:::::.
B. Type ping ::9.45.16.172.
C. Type ping followed by the Link-local address of the server.
D. Type ping followed by the Site-local address of the server.

5.单项选择题Your company has a single Active Directory domain. All servers run Windows Server 2008. You install an additional DNS server that runs Windows Server 2008. You need to delete the pointer record for the IP address 10.3.2.127. What should you do?()

A.Use DNS manager to delete the 127.in-addr.arpa zone.
B.Run the dnscmd /RecordDelete 10.3.2.127 command at the command prompt.
C.Run the dnscmd /ZoneDelete 127.in-addr.arpa command at the command prompt.
D.Run the dnscmd /RecordDelete 10.in-addr.arpa. 127.2.3 PTR command at the command prompt.

6.单项选择题Your company has a main office and two branch offices. Domain controllers in the main office host an Active Directory-integrated zone. The DNS servers in the branch offices host a secondary zone for the domain and use the main office DNS servers as the DNS Master servers forthe zone. Each branch office has an application server. Users access the application server by using its fully qualified domain name. You need to ensure that users in the branch offices can access their local application server even if the WAN links are down for three days. What should you do?()

A.Increase the Expires After setting to 4 days on the Start of Authority (SOA) record for the zone.
B.Increase the Refresh Interval setting to 4 days on the Start of Authority (SOA) record for the zone.
C.Configure the Zone Aging / Scavenging Properties dialog box to enable Scavenge stale resource records, and set the Refresh setting to 4 days.
D.Configure the Zone Aging / Scavenging Properties dialog box to enable Scavenge stale resource records, and set the No-refresh interval setting to 4 days.

7.单项选择题Your company has multiple DNS servers in the main office.  You plan to install DNS on a member server in a branch office.You need to ensure that the DNS server in the branch office is able to query any DNS server in the main office, and you need to limit the number of DNS records that are transferred to the DNS server in the branch office. What should you do? ()

A.Configure a secondary zone on the DNS server in the branch office.
B.Configure a stub zone on the DNS server in the branch office.
C.Configure a stub zone on the DNS server in the main office.
D.Configure a primary zone on the DNS server in the branch office.

8.单项选择题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 to http://App1. What should you do?()

A.Configure and enable DFS Replication 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 GlobalNames 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 LegacyWINS on a DNS server. Replicate the LegacyWINS zone to all domain controllers in the forest. Create a host (A) record for the App1 Web server in the zone.

9.单项选择题Your partner company has a single domain named partner.com. The partner.com DNS zone is Active Directory-integrated. The IP addresses of the DNS servers in the partner domain will change. You need to ensure name resolution for users in contoso.com to resources in partner.com. What should you do?()

A.Create a stub zone for partner.com on each DNS server in contoso.com.
B.Configure the Zone Replication Scope for partner.com to replicate to all DNS servers in the forest.
C.Configure an application directory partition in the contoso.com forest. Enlist all DNS servers in the contoso.com forest in the partition.
D.Configure an application directory partition in the partner forest. Enlist all DNS servers in the partner forest in the partition.

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