Windows Server Exam 70-291 Practice Questions

1. What step does a DNS client perform first to resolve a DNS name?

The client checks its local DNS resolver cache

The client queries its primary DNS server

The client queries its alternate DNS server

The client broadcasts on the local subnet

Answer A is correct. DNS clients check their local DNS resolver cache before sending queries to DNS servers.

Explanation

Answer A is correct. DNS clients check their local DNS resolver cache before sending queries to DNS servers.

2. April is a network administrator for an Acitve Directory domain with servers running Windows Server 2003. April recently installed a second DHCP server on the local subnet. When testing the server, she notices the DHCP Server service is being shut down and she can't get the service to stay running. What is the most likely cause of this problem?

The DHCP server service is improperly installed

The DHCP server does not have an active scope

The active scope has invalid TCP/IP options

The DHCP server has not be authorized in Active Directory

Answer D is correct. With Windows 2000 and later, a workgroup or stand-alone DHCP server configured on the same subnet as a domain's authorized DHCP server is considered to be a rogue server. As part of a network protection process, the rogue server automatically stops its DHCP Server service and stops leasing IP addresses to clients. To resolve this issue, you must authorize the DHCP server in Active Directory.

Explanation

Answer D is correct. With Windows 2000 and later, a workgroup or stand-alone DHCP server configured on the same subnet as a domain's authorized DHCP server is considered to be a rogue server. As part of a network protection process, the rogue server automatically stops its DHCP Server service and stops leasing IP addresses to clients. To resolve this issue, you must authorize the DHCP server in Active Directory.

3. Which of the following is most likely tru if a computer with an IP address of 169.254.201.10?

No DHCP server is on the network

A DHCP server is assigning the computer's IP address

The computer has a static IP address

The network cable is disconnected

Answer A is correct. When DHCP is configured but not available, or the client lease is expired and cannot be renewed, clients use Automatic Private IP Addressing. Whith APIPA, clients assign themselves an IP address in the range of 169.254.0.1-169.254.255.254, with a subnet mask of 255.255.0.0.

Explanation

Answer A is correct. When DHCP is configured but not available, or the client lease is expired and cannot be renewed, clients use Automatic Private IP Addressing. Whith APIPA, clients assign themselves an IP address in the range of 169.254.0.1-169.254.255.254, with a subnet mask of 255.255.0.0.

4. Frank's computer is configured to use DHCP. When Frank logs on, he notices he can't connect to the network. The computer has no IP address according to ipconfig. Which of the following is most likely true?

No DHCP server is on the network

The computer is using Automatic Private IP Addressing

The network cable to the computer is disconnected

The computer is using dynamic IP addressing

Answer C is correct. APIPA requires an active network connection (in most cases) for automatic configuration to work properly. If the network cable to a computer is disconnected or improperly connected, the computer may no be assigned an IP address. When you type ipconfig /all at a command prompt, you may see an error stating "Media Disconnected."

Explanation

Answer C is correct. APIPA requires an active network connection (in most cases) for automatic configuration to work properly. If the network cable to a computer is disconnected or improperly connected, the computer may no be assigned an IP address. When you type ipconfig /all at a command prompt, you may see an error stating "Media Disconnected."

5. You want to configure multiple standard scopes so that they can be easily activated or deactivated. What should you do?

Create a multicast scope and add the standard scopes to it

Create a superscope and add the standard scopes to it

Delete all the scopes except one

Configure server options instead of scope options

Answer B is correct. A superscope is a container for scopes that allows you to more easily work with multiple scopes. After you create a superscope, you can add to it the scopes you want to manage as a group.

Explanation

Answer B is correct. A superscope is a container for scopes that allows you to more easily work with multiple scopes. After you create a superscope, you can add to it the scopes you want to manage as a group.

6. Karl is a network administrator. He's been asked to implement dynamic IP addressing the company's newly installed network, which has two subnets in one Active Directory domain with servers running Windows Server 2003. After Karl installs and configures the DHCP server in SubnetA, client computers in SubnetA are able to obtain DHCP leases and the proper TCP/IP configuration. What is the most likely cause of the problem?

The DHCP server is not authorized in SubnetB

The DHCP scope for SubnetB is not active

The DHCP server service is stopped

A DHCP Relay Agent is not installed in SubnetB

Answer D is correct. A DHCP Relay Agent (or a BOOTP-compatible router) must be installed in SubnetB to route DHCP broadcast messages between networks.

Explanation

Answer D is correct. A DHCP Relay Agent (or a BOOTP-compatible router) must be installed in SubnetB to route DHCP broadcast messages between networks.

7. The network has three subnets: SubnetA, SubnetB, and SubnetC. The DHCP server on SubnetA is configured with one scope for each subnet. The network administrator configured the TCP/IP settings using Server options, which works fine for Clients on SubnetA, but not for clients on SubnetB and SubnetC. What should be done to resolve this problem?

Set scope options for the SubnetB and SubnetC scopes as appropriate to override server options

Remove the server options and set only scope options for the SubnetA, SubnetB, and SubnetC scopes

Remove the server options and set only class options

Set predefined options as appropriate to override server options

Answer A is correct. The clients on SubnetB and SubnetC are likely getting the wrong TCP/IP router option. By setting the correct TCP/IP router option as a scope option, you can override the server options for the settings.

Explanation

Answer A is correct. The clients on SubnetB and SubnetC are likely getting the wrong TCP/IP router option. By setting the correct TCP/IP router option as a scope option, you can override the server options for the settings.

8. Carlos is responsible for the managing DHCP. The organization has a single Class C subnet with 254 available IP addresses. the network ID is 192.168.10.0. Carlos wants a single scope to cover all 254 IP addresses. However, he needs to ensure 14 of the IP addresses aren't used by DHCP clients and that 8 of the IP addresses are always assigned to the same member servers. Which of the following should be done to configure the scope? (Choose Two)

Create the scope for the IP address range 192.168.10.0.-192.168.10.255

Create the scope for the IP address range 192.168.10.1-192.168.10.254

Create an exclusion range for the 8 member servers and reserve the other 14 IP addresses

Create an exclusion range for the 14 member servers and reserve the other 8 IP addresses

Answer B and D are correct. The assignable IP address for the network is 192.168.10.1 to 192.168.10.254. To ensure a client computer gets the same IP address, create a reservation on a lease. To ensure an IP address is not used, create an exclusion.

Explanation

Answer B and D are correct. The assignable IP address for the network is 192.168.10.1 to 192.168.10.254. To ensure a client computer gets the same IP address, create a reservation on a lease. To ensure an IP address is not used, create an exclusion.

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9. The company has two subnets in one Active Directory domain with servers running Windows Server 2003. On the DHCP server, Scope1 provides dynamic addressing for SubnetA, and Scope2 provides dynamic addressing for SubnetB. Client in SubnetA are able to obtain DHCP leases, but are unable to access resources in SubnetB. What is the best way to solve the problem?

Reconfigure the network's DHCP Relay agent

Activate Scope1

Activate Scope1 and Scope2

Configure the default gateway on client computers

Configure the TCP/IP router option for Scope1

Answer E is correct. If client computers have an improperly configured gateway, they are not able to access resources outside of their local subnet. The best way to solve this problem is to configure the TCP/IP router option (option 003) for Scope1. Although you could configure a default gateway on client computers, this is not the best way to solve the problem, so Answer D is incorrect.

Explanation

Answer E is correct. If client computers have an improperly configured gateway, they are not able to access resources outside of their local subnet. The best way to solve this problem is to configure the TCP/IP router option (option 003) for Scope1. Although you could configure a default gateway on client computers, this is not the best way to solve the problem, so Answer D is incorrect.

10. Which of the following correctly describes recursive and iterative queries? (Choose Two)

Answer A and D are correct. With a recursive query, the DNS server must respond directly to a recursive query or return an error, and queries other DNS servers on behalf of the client if unable to resolve a query. With an iterative query, a DNS server attempts to resolve the query from its records or from its cache, and if it is unable to resolve the query, the server can refer the client to another DNS server.

Explanation

Answer A and D are correct. With a recursive query, the DNS server must respond directly to a recursive query or return an error, and queries other DNS servers on behalf of the client if unable to resolve a query. With an iterative query, a DNS server attempts to resolve the query from its records or from its cache, and if it is unable to resolve the query, the server can refer the client to another DNS server.

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