70-642 Config IP Addressing and Services

1. Your organization consists of a single Active Directory domain. You undertake performance analysis of a Windows Server 2008 DHCP server named IP01 and determine that the DHCP database needs to be compacted. What action should you perform? A. Use the NTDSUTIL utility. B. Use the WDSUTIL utility. C. Use the jetpack.exe utility. D. Use the NETSH utility.

A. Use the NTDSUTIL utility.------ We use this utility to perform operations on the Active Directory DomainServices database.

B. Use the WDSUTIL utility.The WDSUTIL command-line tool is used to manage Windows Deployment Services(WDS) from a command-prompt environment.

The correct answer is C. Use the jetpack.exe utility. The jetpack.exe command-line tool can be used to compress and optimize WINS and DHCP databases, both of which use the Microsoft Access-based JET database engine. This utility is specifically designed for compacting and optimizing databases, making it the appropriate choice for compacting the DHCP database in this scenario. The other options, NTDSUTIL, WDSUTIL, and NETSH, are not designed for compacting DHCP databases and would not be the correct choice in this situation.

Explanation

The correct answer is C. Use the jetpack.exe utility. The jetpack.exe command-line tool can be used to compress and optimize WINS and DHCP databases, both of which use the Microsoft Access-based JET database engine. This utility is specifically designed for compacting and optimizing databases, making it the appropriate choice for compacting the DHCP database in this scenario. The other options, NTDSUTIL, WDSUTIL, and NETSH, are not designed for compacting DHCP databases and would not be the correct choice in this situation.

2. Your organization currently uses the IPv4 network address 192.168.16.0/24. You need to expand the network into 7 segments of at least 28 hosts each. What action should you perform? A. Deploy the subnet mask 255.255.255.224 in the network. B. Deploy the subnet mask 255.255.255.240 in the network. C. Deploy the subnet mask 255.255.255.128 in the network. D. Deploy the subnet mask 255.255.255.248 in the network.

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3. 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 are planning to migrate from IPv4 to IPv6 and need to educate yourself as to how IPv6 addressing works. Which of the following represents an invalid IPv6 address? A. 2001:cgba::3257:9654 B. 2001:cdba::3257:9651 C. 2001:cdba:0000:0000:0000:0000:3257:9656 D. 2001:cdba:0:0:0:0:3257:9655

A. 2001:cgba::3257:9654------ This IPv6 address is invalid because g is an illegal character in hexadecimalnotation.

B. 2001:cdba::3257:9651------ This is a valid IPv6 address.

C. 2001:cdba:0000:0000:0000:0000:3257:9656------ This is a valid IPv6 address.

D. 2001:cdba:0:0:0:0:3257:9655------ This is a valid IPv6 address.

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4. Your organization contains a Windows Server 2008 member server that is configured with the RRAS server role. Its two network adapters are named LAN1 and LAN2. You need to configure the network adapters such that outbound network traffic is favored toward LAN2. What action should you perform? A. Set the interface metric of LAN1 to 2 and the interface metric of LAN2 to 1. B. Set the interface metric of LAN1 to 1 and the interface metric of LAN2 to 2. C. Install the Microsoft Loopback Adapter and set its interface metric to 2. D. Install the Microsoft Loopback Adapter and set its interface metric to 1.

Setting the interface metric of LAN1 to 1 and the interface metric of LAN2 to 2 is the correct action to perform. Higher metric numbers denote higher-priority network adapters, so in this case, the server will favor the LAN2 interface over the LAN1 interface. This configuration ensures that outbound network traffic is favored toward LAN2.

Explanation

Setting the interface metric of LAN1 to 1 and the interface metric of LAN2 to 2 is the correct action to perform. Higher metric numbers denote higher-priority network adapters, so in this case, the server will favor the LAN2 interface over the LAN1 interface. This configuration ensures that outbound network traffic is favored toward LAN2.

5. Your organization consists of a single Active Directory domain in which all servers run Windows Server 2008 and all client computers run Windows Vista with Service Pack 1. You need to define a policy such that all LAN traffic between users and a high-security file server named FS01 is encrypted at the packet level. What action should you perform? A. Deploy a NAP policy. B. Define a Wired Network (IEEE 802.3) policy. C. Define a Network List Manager policy. D. Define an IPSec policy.

A. Deploy a NAP policy.------ Network Access Protection (NAP) represents a method for ensuring systemhealth in a network.

C. Define a Network List Manager policy.------ These policies control which networks a domain member computer canassociate with.

D. Define an IPSec policy.------ IPSec policies are known as Connection Security Rules in Windows Server 2008and Windows Vista.

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6. Your organization consists of a multi-domain Active Directory forest in which all servers run Windows Server 2008 and all client computers run Windows Vista. Hosts in all domains are configured to use both IPv4 and IPv6. You need to ensure that hosts in different domains in the forest can communicate through networks that are separated by NAT firewalls. Your solution must involve the least amount of administrative effort. What action should you perform? A. Enable the Peer Name Resolution Protocol (PNRP) on all organizational firewalls. B. Create at least one IPv6 scope on all DHCP servers. C. Create static NAT translation entries on all organizational firewalls. D. Enable Teredo on all organizational firewalls.

Enabling Teredo on all organizational firewalls is the correct action to perform in this scenario. Teredo technology allows IPv6 packets to traverse IPv4 Network Address Translation (NAT) firewalls, which is necessary for hosts in different domains to communicate through networks that are separated by NAT firewalls. This solution involves the least amount of administrative effort compared to creating static NAT translation entries on all firewalls. Enabling the Peer Name Resolution Protocol (PNRP) on all organizational firewalls alone is not sufficient, as the firewalls will not let IPv6 packets traverse NAT without Teredo enabled. Creating IPv6 scopes on DHCP servers is not relevant to the issue at hand.

Explanation

Enabling Teredo on all organizational firewalls is the correct action to perform in this scenario. Teredo technology allows IPv6 packets to traverse IPv4 Network Address Translation (NAT) firewalls, which is necessary for hosts in different domains to communicate through networks that are separated by NAT firewalls. This solution involves the least amount of administrative effort compared to creating static NAT translation entries on all firewalls. Enabling the Peer Name Resolution Protocol (PNRP) on all organizational firewalls alone is not sufficient, as the firewalls will not let IPv6 packets traverse NAT without Teredo enabled. Creating IPv6 scopes on DHCP servers is not relevant to the issue at hand.

7. You need to take your network's Windows Server 2008 DHCP server offline briefly for scheduled maintenance. Now that the server is online, you need to ensure that no duplicate IP addresses are assigned by the DHCP server. What action should you perform? A. Change the server connection bindings on the server. B. Create a superscope on the DHCP server. C. Restart the DHCP Server service on the server. D. Increase the conflict detection attempts in the DHCP server properties.

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8. You have recently had to delete and recreate a scope on your organization's DHCP server. You need to ensure that no duplicate IP addresses are leased to network clients. What action should you perform? A. Reauthorize the DHCP server in Active Directory. B. Reboot the DHCP server. C. Enable conflict detection on the server. D. Enable audit logging on the DHCP server.

B. Reboot the DHCP server.------ Simply rebooting the server won't ensure that IP address conflicts do notoccur.

Enabling conflict detection on the server is the correct action to perform in order to ensure that no duplicate IP addresses are leased to network clients. Conflict detection involves the server sending out one or more ICMP ping messages to clients before leasing addresses to them. This helps prevent IP address conflicts from occurring on the network. Reauthorizing the DHCP server in Active Directory, rebooting the DHCP server, or enabling audit logging on the DHCP server will not solve the stated problem.

Explanation

Enabling conflict detection on the server is the correct action to perform in order to ensure that no duplicate IP addresses are leased to network clients. Conflict detection involves the server sending out one or more ICMP ping messages to clients before leasing addresses to them. This helps prevent IP address conflicts from occurring on the network. Reauthorizing the DHCP server in Active Directory, rebooting the DHCP server, or enabling audit logging on the DHCP server will not solve the stated problem.

9. 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. Disable PXE on the user's computer. C. Enable traffic on TCP 1542 as a Windows Firewall exception on the user's computer. D. Install a WDS server on the user's local subnet.

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10. Your organization includes a newly deployed Windows Server 2008 e-mail server that is configured with the following IP configuration information: IP Address: 172.16.16.3 Subnet mask: 255.255.224.0 You receive complaints from users who state that they are unable to connect to the email server. What action should you perform? A. Change the server's IP address to 172.16.0.3. B. Configure the server to use a /20 subnet mask. C. Change the server's IP address to 172.16.32.3. D. Configure the server to use the subnet mask 255.255.128.0.

C. Change the server's IP address to 172.16.32.3.------ The problem here is in the subnet mask.

The correct answer is B. Configure the server to use a /20 subnet mask. The given IP address is invalid with a 19-bit subnet mask. To resolve the issue, the server should be configured to use a /20 subnet mask (255.255.240.0 in decimal) which will allow for proper communication and connection to the email server.

Explanation

The correct answer is B. Configure the server to use a /20 subnet mask. The given IP address is invalid with a 19-bit subnet mask. To resolve the issue, the server should be configured to use a /20 subnet mask (255.255.240.0 in decimal) which will allow for proper communication and connection to the email server.

11. 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. Modify the server bindings in the DHCP console. C. Disable IPv6 on the server. D. Set the WINS/NBT Node Type as a Server Option in the DHCP console.

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12. 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 Windows Meeting Space on the development workstations. C. Disable IPv6 by configuring the Local Area Connection properties of the six development workstations. D. Uninstall IPv6 from the Programs and Features Control Panel item on the development workstations.

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

An exclusion range in DHCP is the correct action to perform in this scenario. This will remove the IP addresses that are statically assigned to the new servers from the DHCP scope, preventing them from being distributed to other hosts in the domain. Configuring scope or server options will not solve the problem, and client reservations are not applicable since the new servers already have static IP addresses.

Explanation

An exclusion range in DHCP is the correct action to perform in this scenario. This will remove the IP addresses that are statically assigned to the new servers from the DHCP scope, preventing them from being distributed to other hosts in the domain. Configuring scope or server options will not solve the problem, and client reservations are not applicable since the new servers already have static IP addresses.

14. You manage a Windows Server 2008 file server named FS01. For ease of management you want to rely upon DHCP for IP configuration on this server. However, you need to ensure that users are able to connect to FS01 reliably. What action should you perform? A. Create a DHCP exclusion for FS01. B. Configure FS01 with a static IPv4 address. C. Create a Connection Security Rule in a Group Policy Object (GPO). Scope the GPO to apply to FS01. D. Create a DHCP reservation for FS01.

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15. Your organization includes a Windows Server 2008 member server named RA01 that is configured with the RRAS server role. You need to configure RA01 to allow or block certain IP traffic for entire subnets to which the RRAS server is connected. What action should you perform? A. Configure IPSec policy in Windows Firewall. B. Configure packet filtering in Windows Firewall. C. Install a RADIUS server on the network. D. Deploy RRAS packet filters.

C. Install a RADIUS server on the network.------ RADIUS is not relevant in this scenario.

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16. Your organization consists of an Active Directory domain in which all servers run Windows Server 2008 and all client computers are laptops that run Windows Vista with Service Pack 1. You need to configure TCP/IP on the laptops such that users are able to seamlessly connect to both the corporate network, which uses static IP addressing, and their own home networks, which use dynamic IP addressing. What action should you perform? A. Configure the users with IPv6 addresses. B. Configure the users' computers with APIPA IP addresses. C. Use the Alternate Configuration feature to configure the laptop computers with static primary IP addresses. D. Use the Alternate Configuration feature to configure the laptop computers with a static secondary address.

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17. Your organization consists of a single Active Directory domain in which all servers run Windows Server 2008 and all client computers run Windows XP SP2. You need to deploy Connection Security Rules to protect network traffic to and from a series of secure files servers that reside in the domain. What action should you perform? A. Install Service Pack 3 on the client computers. B. Install the NAP client software on the client computers. C. Install the Network Policy Server role on all member servers. D. Upgrade all client computers to Windows Vista.

D. Upgrade all client computers to Windows Vista.------ Only Windows Server 2008 and Windows Vista can participate in ConnectionSecurity Rules.

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18. You are responsible for creating a new Active Directory domain for a client in which all servers will run Windows Server 2008. Your DHCP strategy involves deploying two DHCP servers with redundant scopes for fault-tolerance purposes. You need to reduce the attack surface of these two DHCP servers as much as possible. What action should you perform? A. Ensure that both DHCP servers are configured with the Active Directory Domain Services role as well. B. Disable IPv6 on both DHCP servers. C. Install the Network Policy Server (NPS) role on both DHCP servers. D. Install Windows Server 2008 in the Server Core configuration on both servers.

Installing Windows Server 2008 in the Server Core configuration on both servers is the correct action to reduce the attack surface of the DHCP servers. The Server Core installation type eliminates the explorer.exe shell and most unnecessary services, drivers, and applications, reducing the potential vulnerabilities and attack vectors. This configuration is recommended for dedicated DHCP server duties and helps to enhance the security and fault-tolerance of the DHCP infrastructure.

Explanation

Installing Windows Server 2008 in the Server Core configuration on both servers is the correct action to reduce the attack surface of the DHCP servers. The Server Core installation type eliminates the explorer.exe shell and most unnecessary services, drivers, and applications, reducing the potential vulnerabilities and attack vectors. This configuration is recommended for dedicated DHCP server duties and helps to enhance the security and fault-tolerance of the DHCP infrastructure.

19. Your organization has a Windows Server 2008-based DHCP server named IP01. You have recently installed a second network interface card and configured the server bindings such that the server listens for DHCP client requests on both network interfaces. However, you notice that one of the network interfaces is not being used to service DHCP client requests. Your solution must involve the least amount of disruption to network services and operations. What action should you perform? A. Restart the DHCP server. B. Authorize the new network interface in Active Directory. C. Install Windows Deployment Services (WDS) on the DHCP server. D. Restart the DHCP Server service.

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20. Your organization contains a Windows Server 2008 DHCP server named IP01. You need to ensure that incorrect or missing information for client IP addresses that are stored in the server's scopes are purged and/or corrected. What action should you perform? A. Unauthorized and reauthorize the DHCP server in Active Directory. B. Enable conflict detection on IP01. C. Reconcile the scopes on IP01. D. Restart the DHCP Server service on IP01.

C. Reconcile the scopes on IP01.------ Reconciling scopes is an online action in which inconsistencies in scope dataare fixed.

Reconciling the scopes on IP01 is the correct action to perform in order to ensure that incorrect or missing information for client IP addresses stored in the server's scopes are purged and/or corrected. Reconciling scopes is an online action that fixes inconsistencies in scope data. Restarting the DHCP Server service or enabling conflict detection will not automatically repair the inconsistencies in the scope data, and unauthorized and reauthorizing the DHCP server in Active Directory is unnecessary for fixing scope database inconsistencies.

Explanation

Reconciling the scopes on IP01 is the correct action to perform in order to ensure that incorrect or missing information for client IP addresses stored in the server's scopes are purged and/or corrected. Reconciling scopes is an online action that fixes inconsistencies in scope data. Restarting the DHCP Server service or enabling conflict detection will not automatically repair the inconsistencies in the scope data, and unauthorized and reauthorizing the DHCP server in Active Directory is unnecessary for fixing scope database inconsistencies.

21. Your organization consists of a single Active Directory domain in which all servers run either Windows Server 2003 or Windows Server 2008 and all client computers run Windows Vista. You are planning to migrate the IP infrastructure of your company to IPv6. In particular, you need to ensure that the Windows Server 2003 can support IPv6. What action should you perform? A. Upgrade the Windows Server 2003 servers to Windows Server 2008. B. Install IPv6 by downloading the component from the Microsoft Web site. C. Install IPv6 by using the Network Connections Control Panel item. D. Install IPv6 by using the Server Manager application.

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22. Your organization has recently upgraded all domain servers from Windows Server 2003 to Windows Server 2008. You need to configure IPSec policy in a Group Policy Object. However, you are unsure where the IPSec policy settings are stored in Windows Server 2008. What action should you perform? A. Configure inbound and outbound rules in the Windows Firewall with Advanced Security node in Group Policy. B. Configure the IPSec Enforcement Client in the Nework Access Protection (NAP) node in Group Policy. C. Specify a cryptographic service provider in the Health Registration Settings node in Group Policy. D. Configure Connection Security Rules in the Windows Firewall with Advanced Security node in Group Policy.

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23. Your organization consists of an IP internetwork that is routed by a multihomed Windows Server 2008 member server that is configured with the RRAS server role. You need to configure a persistent default route on the server from the command prompt that sends all default traffic out of the interface with IP address 192.168.1.1. What action should you perform? A. Issue the command route print 192.168.1.0 on the server. B. Issue the command route -p add 0.0.0.0 mask 0.0.0.0 192.168.1.1 on the server. C. Issue the command route -persistent 192.168.1.0 on the server. D. Issue the command route -p add 255.255.255.255 mask 255.255.255.255 192.168.1.1 on the server.

To configure a persistent default route on the server, the correct action is to issue the command "route -p add 0.0.0.0 mask 0.0.0.0 192.168.1.1" on the server. The -p flag makes the static route persistent, meaning it will remain even after server reboots. The command adds a default route (0.0.0.0) with a subnet mask of 0.0.0.0, directing all default traffic to the interface with the IP address 192.168.1.1.

Explanation

To configure a persistent default route on the server, the correct action is to issue the command "route -p add 0.0.0.0 mask 0.0.0.0 192.168.1.1" on the server. The -p flag makes the static route persistent, meaning it will remain even after server reboots. The command adds a default route (0.0.0.0) with a subnet mask of 0.0.0.0, directing all default traffic to the interface with the IP address 192.168.1.1.

24. You need to create a new scope on your organization's Windows Server 2008 DHCP server that employs Class D IP addresses to support a new videoconferencing initiative which your company is spearheading. What action should you perform? A. Create a multicast scope on the DHCP server. B. Install the MADCAP protocol on the DHCP server. C. Create a DHCP vendor class on the server. D. Create a superscope on the DHCP server.

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25. Your organization consists of a routed internetwork in which internal routers are multihomed Windows Server 2008 member servers that are configured with the RRAS server role. One Windows Server 2008-based DHCP server exists in the organization. You need to support RFC 1542 on the network to ensure smooth DHCP operations throughout the enterprise. What action should you perform? A. Configure one RRAS server as a WINS Proxy Agent. B. Configure all RRAS servers as DHCP Relay Agents. C. Configure all RRAS servers as WINS Proxy Agents. D. Configure one RRAS server as a DHCP Relay Agent.

C. Configure all RRAS servers as WINS Proxy Agents.------ We need DHCP Relay on this routed internetwork, not WINS Proxy.

The correct answer is B. Configure all RRAS servers as DHCP Relay Agents. This is because RFC 1542 discusses how to route DHCP/BOOTP broadcast messages through router interfaces. By configuring all RRAS servers as DHCP Relay Agents, it ensures that BOOTP/DHCP broadcast traffic is routed to the network's single live DHCP server, which is necessary for smooth DHCP operations throughout the enterprise.

Explanation

The correct answer is B. Configure all RRAS servers as DHCP Relay Agents. This is because RFC 1542 discusses how to route DHCP/BOOTP broadcast messages through router interfaces. By configuring all RRAS servers as DHCP Relay Agents, it ensures that BOOTP/DHCP broadcast traffic is routed to the network's single live DHCP server, which is necessary for smooth DHCP operations throughout the enterprise.

26. Your organization consists of a single Active Directory domain in which all servers run Windows Server 2008 and all client computers run Windows Vista. Your company is migrating to IPv6. In particular, you need to configure DHCP to support client autoconfiguration. What action should you perform? A. Configure the DHCP server to use DHCPv6 Stateful mode. B. Configure all client computers to support PNRP. C. Configure the DHCP server to use DHCPv6 Stateless mode. D. Configure all client computers to use DHCPv6 Client mode.

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27. You have deployed a Group Policy Object (GPO) containing Connection Security Rules to your users. However, you discover that none of the domain workstations are communicating by using IPSec packet encryption when they are connected to the Active Directory domain. What action should you perform? A. Verify that the authentication method in use in the domain is Kerberos V5. B. Ensure that the Connection Security Rule is associated with the Domain Profile. C. Ensure that the Connection Policy contains the Isolation rule. D. Verify that the policy requirement is set to the Require authentication for inbound and outbound connections.

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28. Your organization consists of a single Active Directory domain in which all servers run Windows Server 2008 and all clients run Windows Vista. You need to configure your client computers' TCP/IP settings to provide IPv6 support in networks within your organization that support only IPv4 and NAT. What action should you perform? A. Ensure that the IPv6 protocol is enabled in the network card properties of all client workstations. B. Run the command netsh interface ipv6 set teredo on all client workstations. C. Ensure that at least one IPv6 scope is created on the network's DHCP server. D. Run the command netsh interface ipv6 set state on all client workstations.

The correct answer is B. Running the command netsh interface ipv6 set teredo on all client workstations is the appropriate action to provide IPv6 support in networks within the organization that only support IPv4 and NAT. The Teredo protocol allows Windows Vista and Windows Server 2008 computers to use IPv6 in environments that consist of NAT-enabled firewalls and routers and an IPv4 addressing infrastructure. This command enables the Teredo protocol, which is necessary for IPv6 support in this specific network configuration.

Explanation

The correct answer is B. Running the command netsh interface ipv6 set teredo on all client workstations is the appropriate action to provide IPv6 support in networks within the organization that only support IPv4 and NAT. The Teredo protocol allows Windows Vista and Windows Server 2008 computers to use IPv6 in environments that consist of NAT-enabled firewalls and routers and an IPv4 addressing infrastructure. This command enables the Teredo protocol, which is necessary for IPv6 support in this specific network configuration.

29. 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. Install Active Directory Domain Services on the member server. C. Create the appropriate exceptions in Windows Firewall. D. Configure the member server as a multihomed host.

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30. 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 are planning to migrate from IPv4 and IPv6 and need to educate yourself as to how IPv6 addressing works. Which of the following represents an invalid IPv6 transmission type? A. Anycast B. Multicast C. Unicast D. Digicast

A. Anycast------ IPv6 supports anycast data transmission.

C. Unicast------ IPv6 supports point-to-point (unicast) data transmission.

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31. 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 a reservation for the workgroup printers on both DHCP servers. C. Create a reservation for the workgroup printers on one DHCP server. D. Create an exclusion for the workgroup printers on both DHCP servers.

When there are multiple DHCP servers in an enterprise, it is important to create reservations for specific devices to ensure that they always receive the same IP address. In this scenario, the workgroup printers are DHCP clients, so creating a reservation for them on both DHCP servers will guarantee that they are assigned the same IP address regardless of which server they connect to. This eliminates the possibility of the printers receiving different IP addresses and ensures consistent network connectivity for the printers.

Explanation

When there are multiple DHCP servers in an enterprise, it is important to create reservations for specific devices to ensure that they always receive the same IP address. In this scenario, the workgroup printers are DHCP clients, so creating a reservation for them on both DHCP servers will guarantee that they are assigned the same IP address regardless of which server they connect to. This eliminates the possibility of the printers receiving different IP addresses and ensures consistent network connectivity for the printers.

32. Your organization uses the IPv4 network address 172.16.30.0/22. All client computers in the domain run Windows Vista. HostA (IP address 172.16.8.111, subnet mask 255.255.252.0) is unable to connect to HostB (IP address 172.16.12.23, subnet mask 255.255.252.0) when using NetBIOS broadcasts. What is the most likely explanation of the problem? A. The network's DHCP server is offline. B. HostA and HostB are using an incorrect subnet mask. C. HostA and HostB reside on different IP subnets. D. HostA and HostB are using different default gateway addresses.

B. HostA and HostB are using an incorrect subnet mask.------ The decimal subnet mask 255.255.252.0 (22 bits) is correct.

The most likely explanation for the problem is that HostA and HostB reside on different IP subnets. HostA belongs to subnet ID 172.16.8.0, while HostB belongs to subnet ID 172.16.12.0. Since they are on different subnets, they cannot directly communicate with each other using NetBIOS broadcasts. Routers typically discard NetBIOS broadcast traffic, which is why the hosts are unable to connect.

Explanation

The most likely explanation for the problem is that HostA and HostB reside on different IP subnets. HostA belongs to subnet ID 172.16.8.0, while HostB belongs to subnet ID 172.16.12.0. Since they are on different subnets, they cannot directly communicate with each other using NetBIOS broadcasts. Routers typically discard NetBIOS broadcast traffic, which is why the hosts are unable to connect.

33. Your organization consists of a single Active Directory domain in which all servers run either Windows Server 2003 or Windows Server 2008 and client computers run either Windows 2000 Professional or Windows XP SP2. You are planning to migrate the network's IP addressing infrastructure to IPv6. What actions should you perform? (Select two choices. Each correct answer represents a part of a single solution.) A. Ensure that all DHCP servers are multihomed. B. Upgrade the Windows 2000 Professional computers to Windows XP SP2. C. Upgrade the Windows Server 2003 computers to Windows Server 2008. D. Ensure that all DHCP servers run Windows Server 2008.

C. Upgrade the Windows Server 2003 computers to Windows Server 2008.------ Windows Server 2003 includes native support for IPv6.

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34. Your organization is planning to migrate from an IPv4 infrastructure to an IPv6 infrastructure. Your manager is concerned about how IPv6 packets can be routed over the public Internet, especially to destinations that still use IPv4. What actions should you perform? (Select two choices. Each correct answer represents an independent solution.) A. Deploy 6to4 technology in your network. B. Deploy NPS in your network. C. Deploy the Teredo transition technology in your network. D. Deploy NAT in your network.

A. Deploy 6to4 technology in your network.------ The 6to4 technology was developed to facilitate communications between IPv6hosts and IPv4 hosts.

B. Deploy NPS in your network.------ The Windows Server 2008 Network Policy Server(NPS) technology is notrelevant in this scenario.

The correct answer is A and C.

The 6to4 technology allows for communication between IPv6 hosts and IPv4 hosts. This technology encapsulates IPv6 packets within IPv4 packets, allowing them to be routed over the public Internet.

The Teredo transition technology is a vendor-neutral solution that enables IPv6 and IPv4 to interoperate. It encapsulates IPv6 packets within IPv4 UDP packets, allowing them to be routed over the public Internet.

Deploying both 6to4 and Teredo technologies in the network will ensure that IPv6 packets can be routed to destinations that still use IPv4.

Explanation

The correct answer is A and C.

The 6to4 technology allows for communication between IPv6 hosts and IPv4 hosts. This technology encapsulates IPv6 packets within IPv4 packets, allowing them to be routed over the public Internet.

The Teredo transition technology is a vendor-neutral solution that enables IPv6 and IPv4 to interoperate. It encapsulates IPv6 packets within IPv4 UDP packets, allowing them to be routed over the public Internet.

Deploying both 6to4 and Teredo technologies in the network will ensure that IPv6 packets can be routed to destinations that still use IPv4.

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35. Your organization's single Active Directory domain consists of a mixed IPv4/IPv6 environment. All servers run Windows Server 2008 and all client workstations run Windows Vista. You need to ping a file server named FS01.BIRCO.LAN that uses an IPv6 address. What actions should you perform? (Select two answers. Each correct answer represents an independent solution.) A. Ping the site-local address of the server. B. Issue the command ping -426 fs01.birdco.com from your administrative workstation. C. Ping the link-local address of the server. D. Issue the command ping -6 fs01.birdco.lan from your administrative workstation.

B. Issue the command ping -426 fs01.birdco.com from your administrative workstation.------ The -426 switch is invalid.

not-available-via-ai

Explanation

not-available-via-ai

70-642 Config IP Addressing And Services