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Course 6691 Fundamentals of Implementing TCP/IPv4 in Window

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Course 6691 Fundamentals of Implementing TCP/IPv4 in Window

Post by Admin on Thu Feb 23, 2012 12:00 pm

Course 6691 Fundamentals of Implementing TCP/IPv4 in Windows Server 2008

Overview of TCP/IP and TCP/IP Addressing

What Is a TCP/IP Model? The standards for TCP/IP are published in a series of documents called Requests for Comments (RFCs). RFCs also define the tasks of TCP/IP in the communication process. These tasks are distributed between protocols that are organized into layers of the TCP/IP stack. The stack follows a four-layer model that can be compared to the Open System Interconnection (OSI) model. The four layers of the TCP/IP stack are application layer, transport layer, Internet layer, and network interface layer.

The application layer provides access to a network communications subsystem for applications such as remote file systems, File Transfer Protocol (FTP) clients, and Web browsers. This layer also includes utility protocols such as DHCP and DNS, which help you to manage the TCP/IP networks. The application layer also encompasses custom applications.
The transport layer protocol helps you to control data transfer reliability on a network. Data packets are transferred from the host to the client by using ports. By default, ports are used to map data to a particular process running on a computer. The primary transport layer protocols are TCP and User Datagram Protocol (UDP). TCP provides a connection-based, reliable byte-stream service to applications. You can use UDP to transfer data without connecting to the destination port. Therefore, UDP is not secure, and it is unreliable.
The Internet layer protocol helps you to control the transfer of data packets between networks. The Internet layer protocol includes various functionalities such as transmitting data to, and receiving data from the TCP/IP network interface layer, routing data to the correct network and station on the destination network, and handling packet errors and fragmentation. IP is the primary protocol at this layer. This layer also includes protocols such as OSPF that provide path selection, and ICMP and IGMP that provide control information.
The network interface layer protocol helps you to define how datagrams from the Internet layer are transmitted on to the media. The network interface layer provides network functions such as frame synchronization, media access, and error control. The TCP/IP model does not define any protocols at the network interface layer.
Components of an IP Address An IP address is a 32-bit number that uniquely identifies a host on a TCP/IP network. The host can be a computer or any other network device, such as a printer or a router.
IP addresses consist of four numbers separated by periods, for example, 192.168.123.132. A TCP/IP network can be further divided, or subnetted, by a system administrator. You need to do this while reconciling the logical address scheme of the Internet with the physical networks. The nodes of all these IP addresses start with the same binary sequence, which is the network ID and subnet ID of the addresses. In IPv4, the subnet is identified by its base address and subnet mask. You need to analysis an IP address in binary notation to determine how subnet masks are used to distinguish between hosts, networks, and sub-networks.
For example, the dotted-decimal IP address 192.168.123.132 is the 32-bit number 11000000.10101000.01111011.10000100 in binary notation. This number may be difficult to decode. Therefore, it is divided into four parts of eight binary digits. These eight bit sections are known as octets. For example, the decimal numbers that are separated by periods are the octets converted from binary to decimal notation.
An IP address has two parts—the network address and the host address. The first three octets form the network address, and the final octet is the host address. For example, in the dotted-decimal IP address 192.168.123.132, the network address is 192.168.123, and the host address is .132.
On a TCP/IP wide area network (WAN), the routers that pass data packets between networks do not have the exact location of the destination host. These routers use a router table to determine how to get the packet to the network of the destination host. After the packet is delivered to the network, it is delivered to the appropriate host. This allows TCP/IP WAN to work efficiently as a collection of networks.
What Is a Subnet Mask? A subnet mask is a 32-bit number that determines whether a host is on a local subnet or on a remote network. In an IPv4 address, the subnet mask determines the network ID and the host ID of an IP address. A subnet mask contains four octets, similar to an IPv4 address.
You can use the subnet mask to determine full octets as part of the network ID and host ID. Similar to an IP address, a subnet mask is also represented in dot-decimal form and in binary notation. For example, the dotted-decimal subnet mask 255.255.255.0 is the 32-bit number 11111111.11111111.11111111.00000000 in binary notation. The 255 in the subnet mask address represents an octet that is a part of the network ID, and the 0 represents a part of the host ID. In complex IPv4 networks, you can further subdivide the octets.
When a computer delivers an IPv4 packet, it uses the subnet mask to determine the location of the destination host. If the destination host is on the same network, the computer delivers the packet. If the destination host is on a different network, the computer sends the packet to a router for delivery.
What Is a Subnet Mask? A subnet mask is a 32-bit number that determines whether a host is on a local subnet or on a remote network. In an IPv4 address, the subnet mask determines the network ID and the host ID of an IP address. A subnet mask contains four octets, similar to an IPv4 address.
You can use the subnet mask to determine full octets as part of the network ID and host ID. Similar to an IP address, a subnet mask is also represented in dot-decimal form and in binary notation. For example, the dotted-decimal subnet mask 255.255.255.0 is the 32-bit number 11111111.11111111.11111111.00000000 in binary notation. The 255 in the subnet mask address represents an octet that is a part of the network ID, and the 0 represents a part of the host ID. In complex IPv4 networks, you can further subdivide the octets.
When a computer delivers an IPv4 packet, it uses the subnet mask to determine the location of the destination host. If the destination host is on the same network, the computer delivers the packet. If the destination host is on a different network, the computer sends the packet to a router for delivery.
TCP/IP Configuration Options There are various methods of configuring TCP/IP on a network interface, such as dynamic addressing, static addressing, or APIPA. If you are using a static IP configuration, you must assign the subnet mask statically. If you are using dynamic addressing, the DHCP server assigns the subnet mask value. You can also use APIPA to configure an IP address when the DHCP servers are not functional.
You may populate the default gateway entry with the TCP/IP address of the router on your subnet. The router passes packets to other networks, such as the Internet. You can automatically assign the default gateway address by using DHCP.
You may configure DNS with the TCP/IP address of the DNS server that will service the host name resolution requests sent from your computer. You can configure DNS statically or by using the DHCP server.
How To Configure a Static IP Address In Windows Server 2008 or Windows Vista, you can configure the IP settings of Local Area Connection by applying a static IP address. You can also verify the IP configuration settings by using the ipconfig command-line tool. Open the Network and Sharing Center to configure the IP settings. View the properties of Local Area Connection. Enable the User Account Control permissions to configure the IP settings.
Configure various settings in the Local Area Connection. For example, configure the properties of IPv4. Notice that the IP address and DNS server address can be obtained automatically. Before configuring the IP settings for IPv4, view the IP configuration for the Local Area Connection by using the ipconfig command-line tool. Notice that DHCP has been enabled and the autoconfiguration IP address has been configured as 169.254.216.36. Specify the IP address, subnet mask address, and the default gateway address for the connection.
Specify the preferred DNS server address for the connection. By using advanced settings, you can add additional IP addresses, gateway addresses, DNS server addresses, and DNS suffixes to append to the host names for resolution. Also specify the WINS server IP address by using advanced settings. Specify a WINS server IP address and add it to the WINS addresses. Apply the static IP settings to the connection.
Now, verify the IP configuration for the Local Area Connection by using the ipconfig command-line tool. Verify the addresses, such as IPv4 address, subnet mask, default gateway, DNS server, and primary WINS server, for the Local Area Connection settings that you configured for IPv4.
This demonstration showed you how to configure a static IP address.
As an IT administrator, you are asked to implement IP addresses on a large number of new computers linked to the intranet. You have also been asked to allow many devices to share limited address space on a network if only some of them are online at a particular time. Which one of the following options will be best suited to meet all the above criteria?
Select the one best answer.

Static addressing.
That is not correct. Static IP addresses are manually assigned to a computer by an administrator. You should use dynamic addressing to avoid the administrative burden of assigning specific static addresses to each device on a network.

Dynamic addressing.
That is correct. You should use dynamic addressing to avoid the administrative burden of assigning specific static addresses to each device on a network.

DNS.
That is not correct. DNS helps in translating IP addresses to host names, and host names to IP addresses. You can configure DNS with the TCP/IP address of the DNS server that will service host name resolution requests sent from your computer. You should use dynamic addressing to avoid the administrative burden of assigning specific static addresses to each device on a network.

Network interface layer.
That is not correct. This is a layer of TCP/IP stack that defines how datagrams from the Internet layer are transmitted. Network interface layer provides network functions such as frame synchronization, media access, and error control. You should use dynamic addressing to avoid the administrative burden of assigning specific static addresses to each device on a network.

Which of the following options allows you to validate if the destination host is on the same network or on a remote network?
Select the one best answer.

DHCP server.
That is not correct. The DHCP server helps to configure TCP/IP on a network interface. The subnet mask helps you to validate whether the destination is on the same network or on a remote network.

DNS server.
That is not correct. The DNS server needs to be configured with the TCP/IP address of the DNS server that will service host name resolution requests sent from the computer. The subnet mask helps you to validate whether the destination is on the same network or on a remote network.

Default gateway address.
That is not correct. A default gateway is the place where two or more networks connect. You can use a default gateway address on a computer when an IP packet's destination address belongs to some place outside the local subnet. The subnet mask helps you to validate whether the destination is on the same network or on a remote network.

Subnet mask.
That is correct. The subnet mask helps you to validate whether the destination is on the same network or on a remote network.


Overview of Name Resolution

What Are Host Names and NetBIOS Names? A host name is a user-friendly name that is used to identify a computer as a TCP/IP host. The host name is associated with the IP address of the computer and can be up to 255 characters in length. It can contain alphabetical and numeric characters, periods, and hyphens.
Host names can be either an alias or an FQDN. An alias is a single name, such as payroll, associated with an IP address. An alias can be combined with a domain name to create an FQDN. You can use an FQDN on the Internet or on large TCP/IP networks. An FQDN is an integral part of Active Directory, and includes periods as separators, for example, payroll.contoso.com.
A NetBIOS name is a 16-character name used to identify a NetBIOS resource on the network. A NetBIOS name can represent a single computer or a group of computers. The first 15 characters of the NetBIOS name are used as the name. The last character is used to identify the resource or service that is being referred by the computer, for example, workstations.




How To Resolve Internet DNS Names DNS is the name service provided by the Internet for computer networks. You can use the DNS namespace to identify the structure of domains that combine to form a complete domain name. A DNS zone is a part of the DNS namespace, such as the local DNS server and root DNS server. A DNS zone database consists of a collection of resource records. Each resource record has specific information about a particular object, such as address mapping records or reverse-lookup pointer record. You can use these resource records to resolve DNS names.
There are 13 root servers on the Internet that are responsible for managing the overall structure of a DNS resolution. In the name resolution process for the domain name, [You must be registered and logged in to see this link.] a workstation queries the local DNS server for the IP address of [You must be registered and logged in to see this link.] If the local DNS server does not have the information, it queries a root DNS server for the location of the .com DNS servers. The local DNS server queries a .com DNS server for the location of the contoso.com DNS servers. When the DNS server receives the location for the contoso.com DNS servers, it queries the contoso.com DNS server for the IP address of [You must be registered and logged in to see this link.] The workstation then receives the IP address of [You must be registered and logged in to see this link.] By querying other DNS servers, the local DNS server functions as a client.
You can modify the name resolution process by caching or forwarding. After a local DNS server resolves the DNS name, the local DNS server caches the results for approximately 24 hours. The DNS server provides the cached information to the subsequent resolution requests for the DNS name. You can configure a DNS server to forward DNS requests to another DNS server, instead of querying root servers. For example, you can forward requests for all Internet names to a DNS server on the Internet.
Host Name Resolution Process Host name resolution is the process of resolving a host name to an IP address before the source host sends the initial IP packet. The standard methods used for host name resolution are local host name, hosts file, and DNS. Additional methods used for host name resolution are DNS client resolver cache, NetBIOS name cache, NetBIOS name server (NBNS), Local broadcast, and Lmhosts file.
If an application uses Windows Sockets and a host name is specified, TCP/IP will use the DNS resolver cache to resolve the host name. If NetBIOS over TCP/IP is enabled, TCP/IP uses NetBIOS name resolution methods to resolve the host names.
In the host name resolution process, if NetBIOS over TCP/IP is enabled, the Windows operating system checks whether the host name is the same as the local host name. Then, it searches the DNS resolver cache and sends a DNS request to its configured DNS servers. The Windows operating system converts the host name to a NetBIOS name and checks the local NetBIOS name cache. It also contacts its configured WINS servers. Finally, it broadcasts as many as three NetBIOS Name Query Request messages on the directly-attached subnet and searches the Lmhosts file.
The name resolution process stops when the first IP address is identified. Windows Server 2008 loads the contents of the host file into the DNS resolver cache. Entries in this file override the DNS name resolution. The order of NetBIOS resolution can be changed depending on the NetBIOS over TCP/IP node type specified on the computer. You can also use LMHOSTS for NetBIOS name resolution.

What Is WINS? WINS is a NetBIOS name server that you can use to resolve NetBIOS names to IPv4 addresses. WINS provides a centralized database for registering dynamic mappings of NetBIOS names that are used on a network.
In addition to WINS, you can resolve NetBIOS names by using broadcast messages, or by implementing Lmhosts files on all computers. However, you can use broadcast messages to resolve NetBIOS names only on small networks because they are filtered by routers. Lmhosts files, too, are not compatible with all scenarios. The files are a high maintenance solution because the files must be constantly updated on the computers. When compared to broadcast messages and Lmhosts files, WINS is compatible with most scenarios.
WINS is built on a protocol that registers, resolves, and releases NetBIOS names by using unicast transmissions. This protocol allows the system to work across routers and eliminates the need for an Lmhosts file. WINS also restores the dynamic nature of NetBIOS name resolution and allows the system to work easily with DHCP. For example, when you assign a new IPv4 address to computers that move between subnets, by using dynamic addressing, the WINS database tracks the changes automatically.

NetBIOS Name Resolution Process NetBIOS name resolution is the successful mapping of a NetBIOS name to an IP address. The NetBIOS name resolution process varies, depending on the NetBIOS over TCP/IP node type specified on the computer, such as a broadcast node, a peer-to-peer node, a mixed node, or a hybrid node. When a WINS server is configured on the computer, several events occur in the NetBIOS name resolution process. The Windows operating system checks the local NetBIOS name cache.
The operating system then contacts the configured WINS servers, broadcasts at least three NetBIOS Name Query Request messages on the directly-attached subnet, and searches the Lmhosts file. The operating system then checks whether the NetBIOS name is the same as the local host name, and searches the DNS resolver cache. Finally, Windows Server 2008 sends a DNS request to its configured DNS servers. The name resolution process stops when the first IPv4 address is found for the host name.
Exploring TCP/IPv4 Tools In Windows Server 2008, you can use the TCP/IPv4 tools, such as ipconfig, netsh, netstat, and nbtstat, for troubleshooting connectivity issues. By using the ipconfig command, you can check the status of the TCP/IP configuration in a computer. Notice that you can use the ipconfig command with various options. By using the all option with the ipconfig command, you can view information such as IP address, subnet mask, default gateway, and DNS server address for each adapter that is bound to TCP/IP.
You can use the network statistics (netstat) command-line tool to display both incoming and outgoing network connections and routing tables, including a number of network interface statistics. Notice that you can use the netstat command with various options. By using the netstat command with the a option, you can view all active connections and listening ports in your computer. You can use the nbtstat command to troubleshoot NetBIOS name resolution problems. On a network connection, NetBIOS over TCP/IP (NetBT) resolves NetBIOS names to IP addresses. This resolution is done with several options of the NetBIOS name resolution, including other options such as local cache lookup, WINS server query, broadcast, LMHOSTS lookup, HOSTS lookup, and DNS server query.
Notice that you can use the nbtstat command with various options. By using the nbtstat command with the n option, you can view the local NetBIOS names on your computer. You can use the NetShell (netsh) command-line and scripting utility for networking components of both local and remote computers. The netsh utility can also save a configuration script in a text file for archival purposes or for configuring other servers. Notice that you can use the netsh command with various options. By using the dump option with the netsh command, you can view a configuration script.
This demonstration showed you how to explore TCP/IPv4 tools.



You are an IT administrator at Woodgrove Bank. The head office of Woodgrove Bank has a large network. You have been assigned the task of getting NetBIOS names resolved to IPv4 addresses with low maintenance cost. Which of the following methods will you use to resolve NetBIOS names?
Select the one best answer.

Broadcast messages.
That is not correct. You use broadcast messages to resolve NetBIOS names only on small networks because they are filtered by routers. WINS is a NetBIOS name server that you can use to resolve NetBIOS names to IPv4 addresses on a large network. WINS is built on a protocol that registers, resolves, and releases NetBIOS names by using unicast transmissions.

WINS.
That is correct. WINS is a NetBIOS name server that you can use to resolve NetBIOS names to IPv4 addresses on a large network. WINS is built on a protocol that registers, resolves, and releases NetBIOS names by using unicast transmissions.

Lmhosts files.
That is not correct. Lmhosts file is a high maintenance solution because the file must be constantly updated on the computers. WINS is a NetBIOS name server that you can use to resolve NetBIOS names to IPv4 addresses on a large network. WINS is built on a protocol that registers, resolves, and releases NetBIOS names by using unicast transmissions.

DNS resolver cache.
That is not correct. The DNS resolver cache reduces DNS network traffic and provides a local cache for DNS queries. WINS is a NetBIOS name server that you can use to resolve NetBIOS names to IPv4 addresses on a large network. WINS is built on a protocol that registers, resolves, and releases NetBIOS names by using unicast transmissions.

You are an IT administrator at Woodgrove Bank. The finance department at Woodgrove Bank is connected by WAN. You need to remotely modify the network configuration of a computer that is currently running on the network. Which of the following TCP/IP command tools will you use to perform this task?
Select the one best answer.

Ipconfig.
That is not correct. Ipconfig is a tool that displays all current TCP/IP network configuration values and refreshes DHCP and DNS settings. Netsh is a command-line scripting utility that allows you to either locally or remotely display or modify the network configuration of a computer that is currently running.

Netsh.
That is correct. Netsh is a command-line scripting utility that allows you to either locally or remotely display or modify the network configuration of a computer that is currently running.

Netstat.
That is not correct. Netstat is a command-line tool that displays the incoming and outgoing network connections, routing tables, and a number of network interface statistics. Netsh is a command-line scripting utility that allows you to either locally or remotely display or modify the network configuration of a computer that is currently running.

Nbtstat.
That is not correct. When a network is functioning normally, Nbtstat resolves NetBIOS names to IP addresses. Netsh is a command-line scripting utility that allows you to either locally or remotely display or modify the network configuration of a computer that is currently running.


Configuring Dynamic IP Addressing
What Is DHCP? DHCP is a service and a protocol that automatically assigns IPv4 addresses and other configuration settings to computers on a network.
By using DHCP, you can automatically assign a new IPv4 address to a computer, when you are moving the computer from one subnet to another. You can release the IPv4 address of a computer that is offline, and reassign the address to another computer.
By using DHCP, you can also reduce the possibility of address duplication. This happens because DHCP automatically tracks IPv4 address assignments. You can rely on DHCP to detect unauthorized DHCP servers on the network. The DHCP server can assign parameters such as lease duration, router exclusions, reservations, subnet mask, and start and end IP.
You can configure a DHCP server to lease a specified span of time to a client computer. During this lease period, the client computer can use an assigned IP address. You can also configure the DHCP server to connect a single network segment to other network segments by using routers.
DHCP servers can also include an exclusion range, which is a limited number of IP addresses within a scope that is not included in DHCP service offerings.
You can use a reservation to create a permanent address lease assignment by the DHCP server. A reservation ensures that a specified hardware device on the subnet can always use the same IP address.
Additionally, you can assign subnet masks to a DHCP server to identify the IP network portion from the host portion of the IP address.
How DHCP Address Renewal Works The length of an IPv4 address lease is measured in days. The length of the lease depends on how frequently the locations of computers are changed on a network and on the supply of IPv4 addresses. A short lease generates more network traffic, but enables DHCP servers to reclaim unused addresses at a faster rate. However, to get a stable network, you need to procure a longer lease because it reduces the amount of traffic generated by DHCP.
The lease renewal process begins when a DHCP client with a leased address reaches the renewal time value, or T1 value, of the lease period. By default, the renewal time value is 50 percent of the lease period. When a client reaches this point, it enters the renewing state and begins generating DHCPREQUEST messages.
The client computer transmits a unicast DHCPREQUEST message to the DHCP server. The server may respond with a DHCPACK message, which automatically renews the lease. The server may also respond with a DHCPNACK message, which automatically ends the lease and requires the client to restart the address assignment process. When you restart the process, the client computer again sends a DHCPREQUEST to the DHCP server. If the IPv4 address is available, the lease is treated as a renewal. However, if the address is not available, the client computer receives a DHCPNACK message and restarts the lease process.
If the server does not respond to the DHCPREQUEST unicast message, the client computer continues to send messages until it reaches the rebinding time value, or T2 value. The T2 value, by default, is 87.5 percent of the lease period. At this stage, the client transmits broadcast DHCPREQUEST messages, requesting an address assignment from any DHCP server on the network. If that process fails, the client needs to transmit a request for a new IPv4 address. The DHCP server needs to assign a new IPv4 address to the client. In this process, the DHCP server uses four data packets—the DHCP Discover packet, the DHCP Offer packet, the DHCP Request packet, and the DHCP Acknowledge packet. It is important that a client sends a DHCP Release packet to the server when the client releases its address.
What Is Alternate IP Configuration? You can use an alternate IP configuration to assign IPv4 addresses to clients when a DHCP server is unavailable. With an alternate IP configuration, you can configure an interface that has more than one IP address. If you need to connect to more than one network, you can configure a second address, which is either static or APIPA, for the same interface.
When a DHCP server is unavailable, you can assign a user-configured alternate address, also referred to as static IP addressing. Static IP addressing involves the manual assignment of a designated fixed address. If your network does not include a DHCP server, and APIPA cannot be used, you can use manual IP addressing. This user-configured alternate method provides more detailed parameters than APIPA. When you require a specific IPv4 address, subnet mask, default gateway, DNS server, or WINS server for a client, you can use the alternate configuration.
You can use APIPA in situations where a reserved IPv4 address, in the range from 169.254.0.1 through to 169.254.255.254 is acceptable. Additionally, you can use APIPA only in cases where you do not need to access a default gateway, DNS server, or WINS server. APIPA functions without any user configuration. APIPA addresses do not allow communication across routers and do not have default gateways.
What Is APIPA? APIPA is used for simple networks that have only one subnet. APIPA is an alternative to DHCP for requesting and retrieving an IPv4 address for a host. APIPA assigns an IPv4 address on the 169.254.0.0 network when a computer that is configured to obtain a DHCP lease cannot communicate with a DHCP server. By using APIPA, you can create a functioning single-subnet TCP/IPv4 network. You do not need to configure the TCP/IPv4 protocol manually or set up a DHCP server. APIPA eliminates errors associated with missing IPv4 addresses that often occur on a single-network, or on small-office or home-office networks.
The limitations of APIPA make it unsuitable for most small networks. APIPA does not assign DNS servers, WINS servers, or a default gateway. You cannot use APIPA for networks that run any of the following:
· Active Directory
· Internet connectivity
· Multiple subnets
· DNS servers
· WINS servers
How To Configure Dynamic Addressing In Windows Server 2008 or Windows Vista, you can configure the dynamic addressing for TCP/IPv4 connections by using the Manage Network Connections option. Open Manage Network Connections to configure dynamic addressing for TCP/IPv4 connections. Enable the User Account Control permissions to configure the IP settings. Configure various settings in the Local Area Connection. For example, configure the properties of IPv4.
Notice that you can populate addresses for the IP, subnet mask, default gateway, and preferred and alternate DNS servers for the connection. You can also add additional addresses for the IP, gateway, DNS servers, DNS suffixes, and WINS servers by using the advanced TCP/IP settings.
You can also assign the IP address and the DNS server address automatically by using the DHCP server. Notice that the Alternate Configuration option is enabled. By using the Alternate Configuration option, you can provide static addresses such as IP, subnet, default, and DNS server, or you can use the Automatic private IP address option to provide the default alternate configuration for TCP/IP connections when the DHCP server is not available.
Notice that the Local Area Connection is now connected to the Internet. Notice that the DHCP and autoconfiguration options are enabled. View the IPv4 address, subnet mask, default gateway, DHCP server, DNS servers, and WINS servers addresses that are obtained by the DHCP server. View the date and time when the DHCP server obtained the lease and the expiry date and time of the lease. You can release addresses for the specified adapter prior to the lease expiry date and time by using the release option.
You can renew addresses for the specified adapter by using the renew option. This option obtains all the addresses from the DHCP server. You can also check the status of the IP configuration when DHCP is not available. Disconnect the DHCP server. Notice that the Local Area Connection is not connected to any network. Use the release option to release the addresses that are configured by using the DHCP server.
Notice that the renew option could not obtain addresses from the DHCP server. Use the all option to view the IP configuration setting for the TCP/IPv4 connection. Notice that the Automatic private IP address option has assigned an IPv4 address of 169.254.x.x and the subnet mask of 255.255.0.0. Also notice that there is no default gateway for the connection. Configure the alternate IP configuration settings for the TCP/IPv4 connection by using the User configured option.
Ensure that you have entered the addresses for the IP address, subnet mask, default gateway, preferred DNS server, and preferred WINS server. Notice that the static IP settings are applied to the local area network. Verify that the static addresses that you specified in the alternate configuration has been applied for the TCP/IP connection.
This demonstration showed you how to configure dynamic addressing.

You are the IT administrator at Woodgrove Bank. You have installed a DHCP server on the organization’s network. Several client computers connect to the network by using IPv4 addresses assigned to them. What message do the clients use to request configuration parameters from the DHCP server?
Select the one best answer.

DHCPACK.
That is not correct. The DHCP server sends a DHCPACK message to the client to renew the lease and restart the lease time clock. Clients use the DHCPDISCOVER message to request configuration parameters from the DHCP server.

DHCPDISCOVER.
That is correct. Clients use the DHCPDISCOVER message to request configuration parameters from the DHCP server.

DHCPNACK.
That is not correct. The DHCP server sends a DHCPNACK message to the client to terminate the lease and force the client to begin the address assignment process again. Clients use the DHCPDISCOVER message to request configuration parameters from the DHCP server.

DHCPREQUEST.
That is not correct. The clients transmit DHCPREQUEST messages to the DHCP server for lease renewal. Clients use the DHCPDISCOVER message to request configuration parameters from the DHCP server.
As an IT administrator, you need to assign IP addresses by using an IP addressing method. Which method can you use when a reserved IPv4 address in the range from 169.254.0.1 through 169.254.255.254 is acceptable?
Select the one best answer.

APIPA.
That is correct. You can use APIPA when a reserved IPv4 address in the range from 169.254.0.1 through 169.254.255.254 is acceptable.

DHCP.
That is not correct. You use DHCP to automatically assign IPv4 addresses and other configuration settings to the computers on a network. You can use APIPA when a reserved IPv4 address in the range from 169.254.0.1 through 169.254.255.254 is acceptable.

Static IP addressing.
That is not correct. Static IP addressing involves the manual assignment of a designated fixed address. If your network does not include a DHCP server, and APIPA cannot be used, you can use manual IP addressing. You can use APIPA when a reserved IPv4 address in the range from 169.254.0.1 through 169.254.255.254 is acceptable.

Alternate IP configuration.
That is not correct. You use an alternate IP configuration to configure an interface that has more than one IP address. You can use APIPA when a reserved IPv4 address in the range from 169.254.0.1 through 169.254.255.254 is acceptable.

Lab: Exploring TCP/IPv4 Fundamentals
Scenario You are a desktop support technician at Woodgrove Bank. You are responsible for configuring desktop computers and testing new applications before they are delivered to clients.
In the Financial Analysis department of your organization, all desktop computers are configured with a dynamic IP address. A new computer is ready for a client that needs to be configured to use a dynamic IP address.
To enhance information security in the Financial Analysis department, all desktop computers are being configured with static IP addresses. This allows firewalls to control access to some resources. You need to configure a desktop computer with a static IP address and then verify its functionality.
In addition, a new Web-based application is being implemented for the Financial Analysis department in your organization. Users accessing this Web-based application will use the FQDN, finance.woodgrovebank.com. You need to verify that this DNS name resolves to the IP address, 10.10.0.21.
However, when users attempt to access the new application that is installed in the Financial Analysis department, they receive an error message. The application uses port 8080. You need to verify that the Web server is configured correctly.
Exercise Information There are four main exercises in this lab. Each one is designed to help you achieve one or more learning objectives.
Exercise 1: Configuring a Dynamic IP Address
In this exercise, you will:
· Verify the DHCP configuration.
· Configure a dynamic IP address on the client computer.
· Verify the connectivity of the dynamic IP address.
Exercise 2: Configuring a Static IP Address
In this exercise, you will:
· Configure a static IP address on the client computer.
· Verify the connectivity of the static IP address.
Exercise 3: Testing the DNS Configuration
In this exercise, you will:
· Test the DNS resolution on the client computer.
· View and configure a DNS record on the domain controller.
· Verify the DNS resolution on the client computer.
Exercise 4: Connecting to a Web Application
In this exercise, you will:
· Verify the Web site configuration.
· Test the Web-based application on the client computer.
Launch the Lab
Print this page.

Note:
These lab instructions are located on the Launch the Lab page of the course, as well as in the expandable Lab Instructions pane of the launched lab. Both sets contain the same information, so please use the instructions from the location you feel is most convenient.
Lab Scenario
You are a desktop support technician at Woodgrove Bank. You are responsible for configuring desktop computers and testing new applications before they are delivered to clients.
In the Financial Analysis department of your organization, all desktop computers are configured with a dynamic IP address. A new computer is ready for a client that needs to be configured to use a dynamic IP address.
To enhance information security in the Financial Analysis department, all desktop computers are being configured with static IP addresses. This allows firewalls to control access to some resources. You need to configure a desktop computer with a static IP address and then verify its functionality.
In addition, a new Web-based application is being implemented for the Financial Analysis department in your organization. Users accessing this Web-based application will use the FQDN, finance.woodgrovebank.com. You need to verify that this DNS name resolves to the IP address, 10.10.0.21.
However, when users attempt to access the new application that is installed in the Financial Analysis department, they receive an error message. The application uses port 8080. You need to verify that the Web server is configured correctly.
Exercise 1: Configuring a Dynamic IP Address
In this exercise, you will:
· Verify the DHCP configuration.
· Configure a dynamic IP address on the client computer.
· Verify the connectivity of the dynamic IP address.
Task 1: You are logged on to the NYC-DC1 server with the user name, WoodgroveBank\Administrator, and the password, Pa$$w0rd. Proceed to the next task.
1. If you need to log on to NYC-DC1, click the Ctrl-Alt-Delete button.
2. Enter the following:
o User name: WoodgroveBank\Administrator
o Password: Pa$$w0rd
Task 2: You are logged on to the NYC-WEB server with the user name, WoodgroveBank\Administrator, and the password, Pa$$w0rd. Proceed to the next task.
1. If you need to log on to NYC-WEB, click the Ctrl-Alt-Delete button.
2. Enter the following:
o User name: WoodgroveBank\Administrator
o Password: Pa$$w0rd
Task 3: You are logged on to the NYC-CL1 client computer with the user name, WoodgroveBank\Administrator, and the password, Pa$$w0rd. Proceed to the next task.
1. If you need to log on to NYC-CL1, click the Ctrl-Alt-Delete button.
2. Enter the following:
o User name: WoodgroveBank\Administrator
o Password: Pa$$w0rd
Task 4: Verify the DHCP configuration.
1. View the Start IP address and the End IP address of IPv4.
2. View the Start IP address and the End IP address in the address pool.
3. View the configuration values for the Router, the DNS Servers, and the DNS Domain Name.
Result
You have verified that the IP address range is 10.10.0.0 to 10.10.0.254, the configuration value for the Router is 10.10.0.1, for the DNS Servers is 10.10.0.10, and for the DNS Domain Name is WoodgroveBank.com.
Task 5: Configure a dynamic IP address on the client computer.
1. Modify the properties of TCP/IPv4 to obtain an IP address and the DNS server address, automatically.
Result
You have configured a dynamic IP address on the client computer.
Task 6: Verify the connectivity of the dynamic IP address.
1. View the full IP configuration information by using the ipconfig command.
2. Communicate with NYC-DC1 by using the ping command.
3. Browse the shared folders on NYC-DC1.
Result
You have verified the connectivity of the dynamic IP address.
Task 7: You have completed all tasks in this exercise.
1. A successful completion of this exercise results in the following outcome:
o A dynamic IP address is configured on the client computer and the connectivity of the dynamic IP address is verified.
2. To proceed to another exercise, click the desired exercise.
Exercise 2: Configuring a Static IP Address
In this exercise, you will:
· Configure a static IP address on the client computer.
· Verify the connectivity of the static IP address.
Task 1: Configure a static IP address on the client computer.
1. Modify the properties of TCP/IPv4 by assigning the following addresses:
o IP address: 10.10.0.50
o Subnet mask: 255.255.0.0
o Default gateway: 10.10.0.1
o Preferred DNS server: 10.10.0.10
Result
You have configured a static IP address.
Task 2: Verify the connectivity of the static IP address.
1. View the full IP configuration information by using the ipconfig command.
2. Communicate with NYC-DC1 by using the ping command.
3. Browse the shared folders on NYC-DC1.
Result
You have verified the connectivity of the static IP address.
Task 3: You have completed all tasks in this exercise.
1. A successful completion of this exercise results in the following outcome:
o A static IP address is configured on the client computer and the connectivity of the static IP address is verified.
2. To proceed to another exercise, click the desired exercise.
Exercise 3: Testing the DNS Configuration
In this exercise, you will:
· Test the DNS resolution on the client computer.
· View and configure a DNS record on the domain controller.
· Verify the DNS resolution on the client computer.
Task 1: Test the DNS resolution on the client computer.
1. Verify whether the host record, finance.woodgrovebank.com, is registered on the DNS server by using the ping command.
2. Verify whether the IP address, 10.10.0.21, is registered on the DNS server by using the ping command.
Result
You have tested the DNS resolution on the client computer.
Task 2: View and configure a DNS record on the domain controller.
1. Create a host named finance and assign the IP address, 10.10.0.21, to the host.
Result
You have configured a DNS record named finance and assigned an IP address to it.
Task 3: Verify the DNS resolution on the client computer.
1. Verify whether the host record, finance.woodgrovebank.com, is registered on the DNS server by using the ping command.
2. Flush and reset the contents of the DNS client resolver cache by using the ipconfig /flushdns command.
3. Verify whether the host record, finance.woodgrovebank.com, is registered on the DNS server by using the ping command.
4. Find the IP address of finance.woodgrovebank.com by using the nslookup command.
Result
You have verified the DNS resolution.
Task 4: You have completed all tasks in this exercise.
1. A successful completion of this exercise results in the following outcomes:
o The DNS resolution is tested.
o The DNS record, finance.woodgrovebank.com, is configured on the domain controller.
o The DNS resolution is verified.
2. To proceed to another exercise, click the desired exercise.
Exercise 4: Connecting to a Web-Based Application
In this exercise, you will:
· Verify the Web site configuration.
· Test the Web-based application on the client computer.
Task 1: Verify the Web site configuration.
1. Verify whether the Default Web Site is using port 8080.
2. On NYC-CL1, display all active TCP connections and the TCP and UDP ports by using the netstat –a command. Verify whether port 8080 is listening for connection.
Result
You have verified the Web site configuration.
Task 2: Test the Web-based application on the client computer.
1. Browse to the Web site, [You must be registered and logged in to see this link.]
2. Browse to the Web site, [You must be registered and logged in to see this link.]
Result
You have tested the Web-based application.
Task 3: You have completed all tasks in this exercise.
1. A successful completion of this exercise results in the following outcomes:
o The Web site configuration is verified.
o The Web-based application is tested.
Lab Resources
There are no additional lab resources for this lab.

Note:
Printable versions of the lab instructions and lab detailed steps are available from the Launch the Lab page and Lab Review page, respectively, of the course.


Lab Review In this lab, you explored the fundamentals of TCP/IPv4 in Windows Server 2008. You configured a dynamic IP address and a static IP address, and then verified the network connectivity. You tested the DNS resolution, configured a DNS record, and then verified the DNS resolution. In addition, you verified the Web site configuration and tested the Web-based application.
You may find it useful to review your approach now and consider the following questions:
1. Which type of IP addressing will you assign for shared resources, such as Web servers?
Answer: You can assign static IP addresses for shared resources.
2. What is the maximum character length of a host name?
Answer: The host name can be up to 255 characters in length.
Note:
These lab detailed steps are located on the Lab Review page of the course, as well as under detailed steps in the expandable Lab Instructions pane of the launched lab. Both sets contain the same information, so please use the instructions from the location you feel is most convenient.
Exercise 1: Configuring a Dynamic IP Address
Task 1: You are logged on to the NYC-DC1 server with the user name, WoodgroveBank\Administrator, and the password, Pa$$w0rd. Proceed to the next task.
1. There are no detailed steps for this task.
Task 2: You are logged on to the NYC-WEB server with the user name, WoodgroveBank\Administrator, and the password, Pa$$w0rd. Proceed to the next task.
1. There are no detailed steps for this task.
Task 3: You are logged on to the NYC-CL1 client computer with the user name, WoodgroveBank\Administrator, and the password, Pa$$w0rd. Proceed to the next task.
1. There are no detailed steps for this task.
Task 4: Verify the DHCP configuration.
1. View the Start IP address and the End IP address of IPv4.
a. On the Start menu of NYC-DC1, point to Administrative Tools, and then click DHCP. The DHCP console appears.
b. In the tree pane of the DHCP console, expand nyc-dc1.woodgrovebank.com, and then expand IPv4.
c. In the tree pane, under IPv4, click Scope [10.10.0.0] HeadOffice, right-click Scope [10.10.0.0] HeadOffice, and then click Properties. The Scope [10.10.0.0] HeadOffice Properties dialog box appears.
d. In the Scope [10.10.0.0] HeadOffice Properties dialog box, view the Start IP address and the End IP address, and then click Cancel.

Note:
Notice that the Start IP address is 10.10.0.101 and the End IP address is 10.10.0.200.


2. View the Start IP address and the End IP address in the address pool.
a. In the tree pane of the DHCP console, under Scope [10.10.0.0] HeadOffice, click Address Pool. The Address Pool result pane appears.

Note:
Notice that in the Address Pool result pane, the Start IP address and End IP address are the same as the IP addresses configured in the scope properties.


3. View the configuration values for the Router, the DNS Servers, and the DNS Domain Name.
a. In the tree pane of the DHCP console, under Reservations, click Scope Options. The Scope Options result pane appears.

Note:
In the Scope Options result pane, notice the value for the 003 Router, which is the default gateway, is 10.10.0.1, the value for 006 DNS Servers is 10.10.0.10, and the 015 DNS Domain Name is WoodgroveBank.com.

b. In the DHCP console, click the Close button.
Task 5: Configure a dynamic IP address on the client computer.
1. Modify the properties of TCP/IPv4 to obtain an IP address and the DNS server address, automatically.
a. On the Start menu of NYC-CL1, click Control Panel. The Control Panel appears.
b. In Control Panel, click Control Panel Home.
c. In Control Panel, click Network and Internet. The Control Panel\Network and Internet window appears.
d. In the Control Panel\Network and Internet window, click Network and Sharing Center. The Network and Sharing Center window appears.
e. In the Network and Sharing Center window, under WoodgroveBank.com (Domain network), click View status. The Local Area Connection Status dialog box appears.
f. In the Local Area Connection Status dialog box, click Properties. The Local Area Connection Properties dialog box appears.
g. In the Local Area Connection Properties dialog box, under This connection uses the following items, click Internet Protocol Version 4 (TCP/IPv4), and then click Properties. The Internet Protocol Version 4 (TCP/IPv4) Properties dialog box appears.
h. In the Internet Protocol Version 4 (TCP/IPv4) Properties dialog box, click Obtain an IP address automatically, click Obtain DNS server address automatically, and then click OK.
i. In the Local Area Connection Properties dialog box, click Close.
j. In the Local Area Connection Status dialog box, click Close.
k. In the Network and Sharing Center window, click the Close button.
Task 6: Verify the connectivity of the dynamic IP address.
1. View the full IP configuration information by using the ipconfig command.
a. On the Start menu of NYC-CL1, in the Start Search box, type cmd, and then press ENTER. The Administrator:C:\Windows\system32\cmd.exe window appears.
b. At the command prompt of the Administrator:C:\Windows\system32\cmd.exe window, type the following command, and then press ENTER.
ipconfig/all

Note:
Notice that under Ethernet adapter Local Area Connection DHCP is enabled and the DHCP server address is 10.10.0.10.


2. Communicate with NYC-DC1 by using the ping command.
a. At the command prompt, type the following command, and then press ENTER.
ping 10.10.0.10

Note:
The command is run successfully and you are able to communicate with the server.

b. In the Administrator:C:\Windows\system32\cmd.exe window, click the Close button.
3. Browse the shared folders on NYC-DC1.
a. On the Start menu of NYC-CL1, in the Start Search box, type \\NYC-DC1, and then press ENTER. The NYC-DC1 window appears.
b. In the NYC-DC1 window, view the shared folders, and then click the Close button.
Task 7: You have completed all tasks in this exercise.
1. There are no detailed steps for this task.
Exercise 2: Configuring a Static IP Address
Task 1: Configure a static IP address on the client computer.
1. Modify the properties of TCP/IPv4 by assigning the following addresses:
o IP address: 10.10.0.50
o Subnet mask: 255.255.0.0
o Default gateway: 10.10.0.1
o Preferred DNS server: 10.10.0.10
a. On the Start menu of NYC-CL1, click Control Panel. The Control Panel appears.
b. In Control Panel, click Network and Internet. The Control Panel\Network and Internet window appears.
c. In the Control Panel\Network and Internet window, click Network and Sharing Center. The Network and Sharing Center window appears.
d. In the Network and Sharing Center window, under WoodgroveBank.com (Domain network), click View status. The Local Area Connection Status dialog box appears.
e. In the Local Area Connection Status dialog box, click Properties. The Local Area Connection Properties dialog box appears.
f. In the Local Area Connection Properties dialog box, click Internet Protocol Version 4 (TCP/IPv4), and then click Properties. The Internet Protocol Version 4 (TCP/IPv4) Properties dialog box appears.
g. In the Internet Protocol Version 4 (TCP/IPv4) Properties dialog box, click Use the following IP address.
h. In the Internet Protocol Version 4 (TCP/IPv4) Properties dialog box, under Use the following IP address, in the IP address box, type 10.10.0.50, in the Subnet mask box, type 255.255.0.0, in the Default gateway box, type 10.10.0.1.

Note:
The Use the following DNS server addresses option is selected automatically when the static IP address is configured.

i. In the Internet Protocol Version 4 (TCP/IPv4) Properties dialog box, under Use the following DNS server addresses, in the Preferred DNS server box, type 10.10.0.10, and then click OK.
j. In the Local Area Connection Properties dialog box, click Close.
k. In the Local Area Connection Status dialog box, click Close.
l. In the Network and Sharing Center window, click the Close button.
Task 2: Verify the connectivity of the static IP address.
1. View the full IP configuration information by using the ipconfig command.
a. On the Start menu of NYC-CL1, in the Start Search box, type cmd, and then press ENTER. The Administrator:C:\Windows\system32\cmd.exe window appears.
b. At the command prompt of the Administrator:C:\Windows\system32\cmd.exe window, type the following command, and then press ENTER.
ipconfig/all

Note:
Notice that under Ethernet adapter Local Area Connection DHCP is not enabled and the DHCP server address is not set.


2. Communicate with NYC-DC1 by using the ping command.
a. At the command prompt, type the following command, and then press ENTER.
ping 10.10.0.10

Note:
The command is executed successfully and you are able to communicate with the server.

b. In the Administrator:C:\Windows\system32\cmd.exe window, click the Close button.
3. Browse the shared folders on NYC-DC1.
a. On the Start menu of NYC-CL1, in the Start Search box, type \\NYC-DC1, and then press ENTER. The NYC-DC1 window appears.
b. In the NYC-DC1 window, view the shared folders, and then click the Close button.
Task 3: You have completed all tasks in this exercise.
1. There are no detailed steps in this task.
Exercise 3: Testing the DNS Configuration
Task 1: Test the DNS resolution on the client computer.
1. Verify whether the host record, finance.woodgrovebank.com, is registered on the DNS server by using the ping command.
a. On the Start menu of NYC-CL1, in the Start Search box, type cmd, and then press ENTER. The Administrator:C:\Windows\system32\cmd.exe window appears.
b. At the command prompt of the Administrator:C:\Windows\system32\cmd.exe window, type the following command, and then press ENTER.
ping finance.woodgrovebank.com

Note:
The command is not successful because the host record, finance.woodgrovebank.com, could not be found.


2. Verify whether the IP address, 10.10.0.21, is registered on the DNS server by using the ping command.
a. At the command prompt of the Administrator:C:\Windows\system32\cmd.exe window, type the following command, and then press ENTER.
ping 10.10.0.21

Note:
The command is executed successfully.

b. In the Administrator:C:\Windows\system32\cmd.exe window, click the Close button.
Task 2: View and configure a DNS record on the domain controller.
1. Create a host named finance and assign the IP address, 10.10.0.21, to the host.
a. On the Start menu of NYC-DC1, point to Administrative Tools, and then click DNS. The DNS Manager console appears.
b. In the tree pane of the DNS Manager console, expand NYC-DC1, expand Forward Lookup Zones, and then click WoodgroveBank.com.

Note:
Notice that the host record for finance is not created.

c. In the tree pane, right-click WoodgroveBank.com, and then click New Host (A or AAAA). The New Host dialog box appears.
d. In the Name (uses parent domain name if blank) box of the New Host dialog box, type finance, in the IP address box, type 10.10.0.21, and then click Add Host. The DNS message box appears.
e. In the DNS message box, click OK.
f. In the New Host dialog box, click Done.
g. In the DNS Manager console, click the Close button.
Task 3: Verify the DNS resolution on the client computer.
1. Verify whether the host record, finance.woodgrovebank.com, is registered on the DNS server by using the ping command.
a. On the Start menu of NYC-CL1, in the Start Search box, type cmd, and then press ENTER. The Administrator:C:\Windows\system32\cmd.exe window appears.
b. At the command prompt of the Administrator:C:\Windows\system32\cmd.exe window, type the following command, and then press ENTER.
ping finance.woodgrovebank.com

Note:
The command is not successful.


2. Flush and reset the contents of the DNS client resolver cache by using the ipconfig /flushdns command.
a. At the command prompt of the Administrator:C:\Windows\system32\cmd.exe window, type the following command, and then press ENTER.
ipconfig /flushdns
3. Verify whether the host record, finance.woodgrovebank.com, is registered on the DNS server by using the ping command.
a. At the command prompt of the Administrator:C:\Windows\system32\cmd.exe window, type the following command, and then press ENTER.
ping finance.woodgrovebank.com

Note:
The command is executed successfully.


4. Find the IP address of finance.woodgrovebank.com by using the nslookup command.
a. At the command prompt of the Administrator:C:\Windows\system32\cmd.exe window, type the following command, and then press ENTER.
nslookup finance.woodgrovebank.com

Note:
The IP address of finance.woodgrovebank.com is 10.10.0.21.

b. In the Administrator:C:\Windows\system32\cmd.exe window, click the Close button.
Task 4: You have completed all tasks in this exercise.
1. There are no detailed steps in this task.
Exercise 4: Connecting to a Web-Based Application
Task 1: Verify the Web site configuration.
1. Verify whether the Default Web Site is using port 8080.
a. On the Start menu of NYC-WEB, point to Administrative Tools, and then click Internet Information Services (IIS) Manager. The Internet Information Services (IIS) Manager console appears.
b. In the Connections pane of the Internet Information Services (IIS) Manager console, expand NYC-WEB (WOODGROVEBANK\Administrator), expand Sites, and then click Default Web Site.
c. In the Actions pane of the Internet Information Services (IIS) Manager console, under Edit Site, click Bindings. The Site Bindings dialog box appears.
d. In the Site Bindings dialog box, notice that the Web site is using port 8080, and then click Close.
e. In the Internet Information Services (IIS) Manager console, click the Close button.
2. On NYC-CL1, display all active TCP connections and the TCP and UDP ports by using the netstat –a command. Verify whether port 8080 is listening for connection.
a. On the Start menu of NYC-CL1, in the Start Search box, type cmd, and then press ENTER. The Administrator:C:\Windows\system32\cmd.exe window appears.
b. At the command prompt of the Administrator:C:\Windows\system32\cmd.exe window, type the following command, and then press ENTER.
netstat –a

Note:
Port 8080 is listening for connection.

c. In the Administrator:C:\Windows\system32\cmd.exe window, click the Close button.
Task 2: Test the Web-based application on the client computer.
1. Browse to the Web site, [You must be registered and logged in to see this link.]
a. On the Start menu of NYC-CL1, click Internet. The Internet Explorer cannot display the webpage - Windows Internet Explorer window appears.
b. In the Address bar of the Internet Explorer cannot display the webpage - Windows Internet Explorer window, type [You must be registered and logged in to see this link.] and then press ENTER. The Internet Explorer cannot display the webpage - Windows Internet Explorer window appears.

Note:
An error is displayed because Internet Explorer attempts to contact a Web site on port 80 by default.

Browse to the Web site, [You must be registered and logged in to see this link.]
a. In the Address bar of the Internet Explorer cannot display the webpage - Windows Internet Explorer window, type [You must be registered and logged in to see this link.] and then press ENTER. The Finance Application - Windows Internet Explore window appears.
Note:
You are able to access the site successfully because the correct port number is used.

b. In the Finance Application - Windows Internet Explorer window, click the Close button.
Task 3: You have completed all tasks in this exercise.
1. There are no detailed steps in this task.


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