Ch 13 - DHCP

Click on the scope management component you would edit to create a DHCP exclusion

Address Pool Address Pool

Mark is the system administrator for a network with a single Active Directory domain. The network has just expanded to include an additional subnet. Mark has installed a new server running Windows Server on the new subnet, and configured it as a DHCP server. When he checks the server icon in the DHCP Management console, he notices the server has a down icon. He notices that the DHCP server service has started, but the server still does not respond to DHCP lease requests. What should Mark do to solve the problem?

Ask a member of the Enterprise Admins group to authorize the server.

Nadine is the systems administrator for a network with a single subnet. The subnet uses 192.168.1.0 with a mask of 255.255.255.0. The network has 10 servers running Windows Server. Srv1 currently provides both DHCP and DNS services. Nadine wants to increase the fault tolerance for her DHCP servers. She installs a new server, Srv11, and configures it for DHCP. she configures a scope on Srv11 to match the scope on Srv1 and then excludes half of the addresses in the scope on Srv1 and the other half of the addresses on the Srv11. Nadine decides to test her solution and shuts down Srv1. As a test, she forces a workstation to release its IP address and request a new one. She finds that the workstation has 169.254.0.15 with a mask of 255.255.0.0 for its IP address. What should Nadine do to fix the problem?

Authorize Srv11.

You configure SRV1 as a DHCP server, and you create two scopes on the server. You configure all clients on both subnets to request IP addressing and other configuration parameters from the DHCP server. After starting the service, you find that hosts on the subnet 192.168.1.0 have obtained addresses from the DHCP server. However, all hosts on subnet 192.168.2.0 have assigned themselves addresses in the APIPA range. What should you do?

Configure SRV2 as a relay agent.

You are the network administrator for a single domain network with a single subnet. Server Prod2 is configured to provide DHCP services for the subnet. The current network configuration is shown in the first image. Because of some recent business expansion, a new subnet is added to the network. You install the Sales1 server in Subnet B and configure it as a DHCP server with a scope for Subnet B as shown in the second image. The router is configured to forward BootP packets. How shjould you configure Sales1 to provide redundancy for DHCP services on Subnet A?

Configure a scope with address range 192.168.1.51 to 192.168.1.250 Configure an exclusion for addresses 192.168.1.51 to 192.168.1.210

You have just received a new laptop at work that you will use on your company network and at home. The company network uses dynamic addressing, while your home network uses static addressing. You connect the laptop to the company network, and everything works fine. When you take your laptop home, you cannot connect to devices on your home network or the internet. You run ipconfig on the laptop and receive the following output: IPv4 address,. . . . . . . . . 169.254.22.74 You need to be able to connect to both the company network and your home network with the least amount of configuration and cost.

Configure an alternate TCP/IP configuration.

You are the administrator of what will become a large Windows Server network using the TCP/IP protocol. Currently the network consists of three Windows Servers and 50 windows workstations all on the same subnet. During the last meeting you had with the CIO, it was determined that company growth would mean adding workstations and printers to the existing network for a total of 235 devices. No one segment is to have more than 85 hosts. The existing hardware will be used on the network as the new devices are added. How should you assign IP addresses to the workstations on the network to minimize administration?

Configure each workstation to use DHCP. Install a DHCP server and configure a single scope.

You administer a single DHCP server for his network of three subnets. the DHCP server is configured with three scopes, one for each subnet. The three subnet addresses are 192.168.1.0, 192.168.2.0, and 192.168.3.0 using the default subnet mask. In addition to assigning IP addresses to network hosts, the DHCP server needs to configure the following: -DNS server address for all hosts: 192.168.1.11 - Default gateway for hosts on the 192.168.1.0 subnet: 192.168.1.1 - Default gateway for hosts on the 192.168.2.0 subnet 192.168.2.1 -Default gateway for hosts on the 192.168.3.0 subnet 192.168.3.1 How should you configure DHCP scope options to minimize administrative effort?

Configure server options to deliver the DNS server address. Configure scope options for each scope to deliver each subnet's designated default gateway address.

You are the network administrator for a single domain network with 15 servers running Windows Server, 200 Windows clients, and 10 Linux workstations. Windows Servers on the network provide DNS and DHCP services. The Linux workstations run a custom application that validates the workstation identity based on its IP address. For the program to run successfully, each workstation must have the same IP address each time it runs the program. Which of the following can you do to meet this requirement?

Create a reservation for each linux workstation. Configure the workstations to receive IP addresses from DHCP.

The DHCP server and the client use broadcasts to cfommunicate with each other. Clients go through four steps to obtain an address from a DHCP server. Move the correct steps from the left to the right, then place them in the order they occur when a client is obtaining its IP config from a DHCP server.

DHCP Discover DHCP Offer DHCP Request DHCP ACK

You are troubleshooting an issue with your DHCP server. You view the DHCP server statistics, which are shown in the top half of the image below. You go to a user's workstation and run the ipconfig/release command followed by ipconfig/renew. You view the DHCP server statistics again, which are shown in the bottom half of the image below. What should you expect to see in the statistics that is not happening?

DHCP discovers are not increasing.

You are the server administrator for the network shown in the image. SRV2 is a domain controller that hosts an Active Directory integrated zone for the network. SRV1 is an application server. Both subnets use the default subnet mask. SRV2 has also been recently configured as a DHCP server for both subnets, and all clients have been modified to receive their IP configuration information from the DHCP server. The user at Host A reports that he cannot access SRV2. Others on the same subnet seem to be having the same problem. Users on the same subnet as SRV2 report no problems. You run Ipconfig /all to verify the TCP/IP configuration of Host A. The output is shown in the second graphic. What should you do?

Enable BOOTP forwarding on the router.

You are the administrator of a network with a single subnet. A single Windows server (Srv1) on Subnet1 is the domain controller, DNS server, and DHCP server. Due to recent expansion, you are adding a second subnet. The second subnet is connected to the first using a dedicated router. On Subnet2, you add a second Windows server(Srv2) that provides file and print services for hosts on that subnet. You want hosts on Subnet2 to receive IP addressing information from the server on Subnet1

Enable BootP forwarding on the router connecting Subnet1 to Subnet2. On Srv2, add the Network Policy and Access Services Role with routing. In Routing and Remote Access, configure the Relay Agent protocol.

The network you manage has 200 workstations split into two network segments. Each segment has two servers, each running Windows Server. The two segments are connected by a single router that is not BootP enabled. To get around this, you've set up a DHCP server on Subnet1 and a DHCP Relay Agent on Subnet2. Over the weekend, you receive an email alert that the DHCP server went down. When you arrive onsite, you find the DHCP server has suffered a critical failure from which it will not easily recover. You decide to replace it. You add the DHCP role to the other server on Subnet1 and configure it with both scopes. You configure all server and scope options. When you arrive for work Monday morning, you receive reports that computers on one subnet cannot communicate with computers on the other subnet. Computers are able to communicate with workstations on the same subnet. You find that computers on Subnet1 have received IP addresses from DHCP server, but computers in Subnet2 have not.

In Routing and Remote Access, change the IP address configured for the Relay Agent protocol.

You are the administrator of a large network. You have one location serving several thousand users. You have 100 Windows servers. Your users are using Windows desktops. You are installing another server into the network. The server role is a Web server that will be hosting the company intranet site. The server will require an IP address on the 10.1.1.0/24 subnet. At present, this subnet contains only servers, and one of the servers is providing addresses through DHCP. You need to assign this server an IP address. How should you assign the IP address to the Web Server?

Manually configure the IP address on the Web server. Create an exclusion on the DHCP server. Configure the Web server to use DHCP. Create a reservation on the DHCP server.

You are the network administrator for a single domain network with a single subnet. Server Prod2 is configured to provide DHCP services for the subnet. The current configuration is shown in image 1. Because of some recent business expansion, a new subnet is added to the network. You want to increase the fault tolerance of the DHCP solution. You install the Prod4 server on the same subnet as the Prod2 server and configure it as a DHCP server.

On Prod4, create a scope with address range 192.168.1.51 to 192.168.1.250 On Prod4, exclude addresses 192.168.1.51 to 192.168.1.150 On Prod2, exclude addresses 192.168.1.151 to 192.168.1.250

You are the network administrator of a network with 90 workstations on a single subnet. A single server called SRV1 provides DHCP services and is configured with a single scope, 194.172.64.10-194.172.64.254. You want to add a second DHCP server for redundancy and fault tolerance. The existing DHCP server should assign most of the addresses, while the second server will primarily be a backup. You want the two servers to work together efficiently to assign the available addresses. However, you want to do this while using Microsoft's best practices and with as little administrative overhead possible. You install a Windows Server named SRV2 as the secondary server and configure it with the DHCP service. How should you configure the scopes on both servers?

On both servers, set the scope range to 194.172.64.10 to 194.172.64.254. On SRV1, exclude addresses 194.172.64.206 to 194.172.64.254. On SRV2, exclude addresses 192.172.64.10 to 192.172.64.205.

You are the manager for the westsim.com domain. The network has a single subnet with five servers, all running Windows Server. The 100 client computers are all windows desktops. One of the servers is configured as a DHCP server configured with a single scope for the 10.0.0.0/24 subnet. Your network has three printers with built-in print servers. These printers are configured as DHCP clients. You want to make sure that each printer gets the same IP address each time it starts up. You configure an exclusion range of 10.0.0.12 to 10.0.0.14 for the printers. You also configure a reservation for each printer. You are informed that no one is able to connect to the printers. You use management software and find that none of the printers have been assigned appropriate IP addresses. What should you do.

On the DHCP server, delete the exclusion range.

- Associates a client's MAC address with an IP address the client should always receive. - Specifies computers that can be DHCP server clients. - Ensures a client always receives the same IP address from the DHCP server. - Prevents the DHCP server from assigning certain IP addresses - Specifies Computers that cannot be DHCP server clients. - Identifies IP addresses within the range that cannot be assigned

Reservation Filter Reservation Exclusion Filter Exclusion

You have a computer that runs Windows and is connected to a domain network with a DHCP server. One day you find that your computer cannot connect to any network resources. You run the ipconfig command and find that the network connection has been assigned the address of 169.254.12.155 with a mask of 255.255.0.0.

Run the ipconfig /release and ipconfig /renew commands.

You are installing DHCP in four subnets. Three of the subnets have Windows desktop computers, and the fourth subnet has only Windows laptop computers. On the subnet with the laptops, you want any computer that has not logged on in 2 days to release its IP address. On the desktop subnets, you want computers that have not logged on in 30 days to release their IP addresses. How should you configure the DHCP scopes?

Set up one scope for each subnet, and set the lease period as a part of each scope's configuration.

You are troubleshooting an issue with DHCP where clients are getting duplicate IP address, which causes users to get IP address conflict messages on their workstations. You view the statistics on your DHCP server, which are shown in the top half of the image below. A few minutes later, you view the statistics again and see the information shown in the bottom half of the image below. Based on this information, which of the following is a probable explanation for the duplicate IP addresses?

There is a rogue DHCP server on the network.

You manage a Windows system connected to a business network that uses switches and multiple subnets. One day you find that the computer is unable to connect to the Internet; however, it can communicate with a few other computers on the local subnet. You enter ipconfig /all at the command prompt and see the following output:

Verify that the DHCP server is up and functional.