Configuring IP Addressing and Services

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Chapter 1 Configuring IP Addressing and Services

1. Your organization consists of a single Windows Server 2008 Active Directory domain that is spread across two IP subnets. One DHCP server exists in the domain. You receive a complaint from a user that she is unable to access domain resources. You discover that her computer's IP address is 169.254.11.213.What action should you perform?

❍ A. Install a DHCP Relay Agent on the user's local subnet. ❍ B. Install a WDS server on the user's local subnet.

❍ C. Enable traffic on TCP 1542 as a Windows Firewall exception on the user's computer.

❍ D. Disable PXE on the user's computer.

Find the Answerp. 72

2. Your organization consists of a single Active Directory domain in which all servers run Windows Server 2008. Due to budgetary constraints, you need to configure a member server as an IPv4 router rather than purchase dedicated hardware.What action should you perform first?

❍ A. Install the Routing and Remote Access Service server role. ❍ B. Configure the member server as a multihomed host.

❍ C. Create the appropriate exceptions in Windows Firewall.

❍ D. Install Active Directory Domain Services on the member server.

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Your organization consists of a single Active Directory domain in which all servers run Windows Server 2008 and all client computers run Windows Vista. You need to ensure that IPv6 is disabled on six development workstations in the domain. Your solution must involve the least amount of administrative effort.What action should you perform?

❍ A. Disable IPv6 by adding the DisabledComponents DWORD value to the Registry of the development workstations.

❍ B. Uninstall IPv6 from the Programs and Features Control Panel item on the development workstations.

❍ C. Disable IPv6 by configuring the Local Area Connection properties of the six development workstations.

❍ D. Uninstall Windows Meeting Space on the development workstations.

4. Your organization consists of a single Active Directory forest in which servers run either Windows Server 2003 or Windows Server 2008 and all client computers run Windows Vista. Your network consists of two subnets and you plan to deploy a Windows Server 2008 DHCP server on each subnet. You need to ensure that neither server distributes a different IP address to the DHCP-enabled workgroup printers in the enterprise.What action should you perform?

❍ A. Create a domain DFS in the forest.

❍ B. Create an exclusion for the workgroup printers on both DHCP servers.

❍ C. Create a reservation for the workgroup printers on one DHCP server.

❍ D. Create a reservation for the workgroup printers on both DHCP servers.

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5. You are configuring a multihomed Windows Server 2008 member server as a DHCP server. The server will serve DHCP client requests on two physical networks.What action should you perform?

❍ A. Enable UDP ports 67 and 68 in Windows Firewall for both network interfaces.

❍ B. Set the WINS/NBT Node Type as a Server Option in the DHCP console.

❍ C. Disable IPv6 on the server.

❍ D. Modify the server bindings in the DHCP console.

6. Your network consists of a single Active Directory domain in which all servers run Windows Server 2008. You are deploying four additional file servers, all of which are configured with static IPv4 addresses. You need to ensure that the IP addresses that are statically assigned to the servers are not distributed to other hosts in the domain.What action should you perform?

❍ A. Create a new exclusion range in DHCP.

❍ B. Create reservations for the new servers in DHCP. ❍ C. Configure the appropriate server option in DHCP. ❍ D. Configure the appropriate scope option in DHCP.

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Answers: Chapter 1

1. A Review Questionp. 2 Detailed Explanationp. 81

2. B Review Questionp. 2 Detailed Explanationp. 81

3. C Review Questionp. 3 Detailed Explanationp. 81

4. D Review Questionp. 3 Detailed Explanationp. 82

8. B, C Review Questionp. 5 Detailed Explanationp. 84

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Explanations: Chapter 1

1. Review Questionp. 2

Answers: A

Explanation A. Correct. In Windows Server 2008, the DHCP Relay Agent service is

installed as a service of the RRAS server role. The DHCP Relay Agent allows DHCP broadcast messages to cross router interfaces.

Explanation B. Incorrect. Windows Deployment Service (WDS) is an operating system

deployment technology that relies upon DHCP. However, the WDS service itself will not allow DHCP Discover packets to cross router interfaces.

Explanation C. Incorrect. DHCP Relay is defined in Request for Comments (RFC)

1542. Traditional DHCP traffic is not blocked by Windows Firewall due to its mission-critical nature.

Explanation D. Incorrect. The Preboot Execution Environment (PXE) represents an

alternate way for a device to obtain an IP address lease from DHCP. However, PXE does not factor into this scenario.

Answers: B

Explanation A. Incorrect. You need to provide the physical capability of routing

packets to different IP subnetworks on the server before you configure the server role.

Explanation B. Correct. In order for a Windows Server computer to serve as an IP

router and/or remote access server, the server must have more than one network interface card (NIC) installed. This configuration is referred to as multihomed.

Explanation C. Incorrect. Whenever you install a server role in Windows Server 2008,

the operating system automatically creates the appropriate traffic access rules in Windows Firewall.

Explanation D. Incorrect. It is not a recommended best practice to install the RRAS

server role on a domain controller. This step is certainly not necessary to the process.

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Answers: C

Explanation A. Incorrect. Although this option is technically correct, it is more

cumbersome and prone to error than is modifying the LAN connection properties on the development workstations.

Explanation B. Incorrect. You cannot uninstall IPv6 in Windows Vista and Windows

Server 2008; you can only disable the protocol stack.

Explanation C. Correct. The easiest way to disable IPv6 on a per-interface basis is to

deselect the "Internet Protocol version 6" option in the appropriate computers' Local Area Connection properties.

Explanation D. Incorrect. If you disable IPv6, then programs that use the Windows

Peer-to-Peer networking protocols won't work anymore. However, simply uninstalling Meeting Space does not affect the running status of the IPv6 stack itself.

Answers: D

Explanation A. Incorrect. Here, we are concerned with IP address configuration

(DHCP), not making file-system resources available in a redundant way (Distributed File System or DFS).

Explanation B. Incorrect. An exclusion removes one or more IP addresses from a

DHCP scope. The scenario in this case states explicitly that the workgroup printers are DHCP clients.

Explanation C. Incorrect. If we perform this action, there exists the possibility that the

workgroup printers, which are configured as DHCP clients, may pick up a different IP address from the other DHCP server.

Explanation D. Correct. When you have multiple DHCP servers in an enterprise, you

need to be careful to plan and create scopes, keeping in mind that the servers never synchronize their scope data. The configurations must be manually duplicated on all servers.

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2008, the operating system creates the appropriate Windows Firewall rules

automatically. Incidentally, DHCP does use User Datagram Protocol (UDP) ports 67 and 68.

Explanation B. Incorrect. DHCP server or scope options have absolutely nothing to do

with this situation.

Explanation C. Incorrect. Remember that Windows Server 2008 DHCP can seamlessly

service IPv6 requests as easily as it can service IPv4 requests.

Explanation D. Correct. In the DHCP Manager console, you can adjust the network

interface card (NIC) bindings such that the server will service DHCP client requests on all, or only selected, network interfaces.

Answers: A

Explanation A. Correct. An exclusion range removes one or more IP addresses from a

DHCP scope, ensuring that DHCP will never offer those addresses to DHCP clients.

Explanation B. Incorrect. Because the scenario states that the new servers are

configured with static IP addresses, client reservations will not work in this situation.

Explanation C. Incorrect. There exists no scope or server option that would prevent

duplicate addresses from being delivered. We need to use either exclusions or client reservations.

Explanation D. Incorrect. Scope and/or server options will not help us solve the

problem that is outlined in this scenario.

Answers: B

Explanation A. Incorrect. PNRP is an IPv6-based discover technology that underpins

Microsoft applications such as Meeting Space. However, without Teredo enabled on all firewalls, the firewalls will not let IPv6 packets traverse NAT.

Explanation B. Correct. Teredo technology allows IPv6 packets to traverse IPv4

Network Address Translation (NAT) firewalls. The Teredo client is enabled by default in Windows Server 2008 and Windows Vista.