单选题A DNS server for a large network is experiencing performance problems.  Which of the following options is the best solution to fix the problem？（）A Enable NISB Purchase a larger serverC Use /etc/hosts on all of the systemsD Create secondary name servers

第1题：

Which of the following options best justifies why a DNS server should be run in a large network system？（）

• A、To use ftp and telnet
• B、To perform NFS mounts
• C、To make /etc/hosts files unnecessary
• D、To reduce network traffic and save bandwidth

第2题：

You are designing the DNS name resolution strategy for the internal network.  What should you do？ （）

• A、 Configure all internal DNS servers to use the default root hints.
• B、 Disable recursion on the DNS server in Seattle. Configure the Seattle DNS to use Dallas DNS server as a forwarder.
• C、 Create a root zone on the DNS server in Dallas. Configure the Seattle DNS server to use the Dallas DNS server as a forwarder.
• D、 Create a root zone on the DNS server in both Dallas and Seattle.

第3题：

You are a Windows Server 2008 systems administrator responsible for providing access to a large volumeof video files to registered users of your organization？？s public Web site. All the video files are located within the D:///Public/Videos folder. Content producers often create and modify these videos. Recently， usershave complained that they are experiencing poor performance when accessing videos during busy times.During these images， the Windows Media Services server that hosts the content is experiencing high CPUand network bandwidth use. You want to minimize the administrative time and effort required to increaseperformance. Which of the following actions should you take to resolve the problem？（）

• A、Copy the training videos to another folder on the Windows Media Services server.
• B、Install the Streaming Media Services server role on additional servers， and configure them as cachingservers.
• C、Install the Streaming Media Services server role on additional servers， and configure them as proxyservers.
• D、Enable the Limit Outgoing Distribution Connections option in the properties of the publishing point.

第4题：

You are designing a strategy to optimize the DNS name resolution for the satellite offices that connect to the branch offices by using ISDN lines. What should you do?（）

• A、Use caching-only DNS servers at these satellite offices.
• B、Configure a Hosts file for all client computers at these satellite offices.
• C、Configure a DNS server to use WINS forward lookup at these satellite offices.
• D、Place a DNS server with secondary zones of all domains at these satellite offices.

第5题：

Your company uses Active Directory integrated DNS. USers require access to the internet. You run a network capture. You notice the DNS server is sending DNS name resolution queries to a server named f. root-servers.net.You need to prevent the DNS server from sending queries to f.root-servers.net The server must be able to resolve names for internet hosts. Which two actions should you perform？ （） 

• A、Enable forwarding to your ISPs DNS servers.
• B、Disable the root hints on the DNS server
• C、Disable the netmask ordering option on the DNS server
• D、Configure Reverse Lookup zones for the IP subnets on the network

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第13题：

A DNS server for a large network is experiencing performance problems.  Which of the following options is the best solution to fix the problem？（）

• A、Enable NIS
• B、Purchase a larger server
• C、Use /etc/hosts on all of the systems
• D、Create secondary name servers throughout the network

第14题：

You are the network administrator for The network consists of a single Active Directory domain named All network servers run Windows Server 2003. Your network includes domain controllers, file and print servers, and application servers. The application servers run a variety of programs, including Microsoft SQL Server 2000 and Microsoft Exchange Server 2003. Your staff are responsible for monitoring current system performance on all servers. You need to enable your staff to use System Monitor to gather performance data for each unique server type. The data will be used for trend analysis and forecasting. Which two actions should you perform? （）(Each correct answer presents part of the solution. Choose two)

• A、For each server, add the most common performance counters and save them as an HTML file.
• B、For each server, add the most common performance counters and save them as a counter report file.
• C、Create trace logs based on the file and schedule and trace logs to gather data.
• D、Create alerts on the file and schedule the alerts to gather data.
• E、Create counter logs based on the file and schedule the counter logs to gather data.

第15题：

Your network contains an Active Directory domain named contoso.com. The domain contains two sites named Site1 and Site2. The servers for the sites are configured as shown in the following table.Server name Server role Site name Server1 Domain controller, DNS Site1 Server2 DNS Site2 Server1 hosts a standard primary zone for contoso.com. Server2 hosts a secondary zone for contoso.com.You need to ensure that all DNS replication traffic between Server1 and Server2 is encrypted.What should you do？（）

• A、On Server1, configure DNSSEC for the contoso.com zone.
• B、On Server1, convert the contoso.com zone to an Active Directory-integrated zone.
• C、On each server, create connection security rules.
• D、On each server, enable Encrypting File System (EFS) encryption for the contoso.com.dns file.

第16题：

You are designing a DNS infrastructure to meet the Internet name resolution requirements. What should you do?（）

• A、Create a standard primary zone named “.” on all DNS servers.  
• B、Create an Active Directory-integrated zone named “.” on a DNS server on Los Angeles.  
• C、Configure all DNS servers to use forwarders. Specify the IP address of the DNS server at the local ISP.  
• D、Enable default root hints on all DNS servers.
• E、Disable recursion on all DNS servers. 

第17题：

Your company has two offices. Each office is configured as a separate subnet. The network contains a single Active Directory domain. All servers run Windows Server 2003 Service Pack 2 （SP2）. All client computers run Windows XP Professional Service Pack 3 （SP3）. Users report that they are unable to resolve host names on the Internet. You verify that users can access all servers on both subnets.You need to ensure that users can resolve names on the Internet. The solution must ensure that users can access resources on the internal network.  What should you configure？（）

• A、all client computers to use the IP address of a DNS server on the Internet as the primary DNS server
• B、all client computers to use the IP address of a DNS server on the Internet as the secondary DNS server
• C、the internal DNS servers to use a forwarder
• D、the internal DNS servers to use round robin

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