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Terms in this set (42)
When the DHCP server sends a final unicast to the client that includes the IP information the client will use.
Short for Automatic Private IP Address, this is a private range of addresses automatically assigned by a host that cannot connect to a DHCP server
authentication header (AH)
An IPSec component that provides connectionless integrity and the authentication of data. It also provides protection versus replay attacks.
A step in DORA when a client computer broadcasts out to the network in order to find a DHCP server.
domain name system (DNS)
A worldwide service that resolves host names to IP addresses.
Short for Discovery, Offering, Request and Acknowledge, this is the four-step process used with DHCP.
Dynamic Host Configuration Protocol (DHCP)
A protocol that allows properly configured client computers to obtain IP addresses automatically from a DHCP server.
encapsulating security payload (ESP)
An IPSec component that provides the same services as AH but also provides confidentiality when sending data.
LAN routing that bridges the gap between the two network adapters even if they are on two different IP networks.
Internet Protocol Security (IPSec) -
A protocol within the TCP/IP suite that encrypts and authenticates IP packets.
When the DHCP server sends out a unicast "offering" of an IP address to the client computer.
Remote Access Service (RAS)
A grouping of different hardware and software platforms to allow remote access to another computer or network device.
Remote Desktop Protocol (RDP)
The protocol used when you use the Remote Desktop Connections program to connect to a computer.
Remote Desktop Services
A type of thin-client terminal server computing. It allows client computers to access and use applications loaded on the server, as well as to connect to and take control of a server. It was previously known as Terminal Services.
In DHCP, when the client broadcasts to all servers that it has accepted the offer.
Routing and Remote Access Service (RRAS)
A network service in Windows Server 2008, Windows Server 2003, and Windows Server 2000. It permits an administrator to configure dial-up remote access servers, VPN servers, and IP routing, as well as NAT
security association (SA)
- The IPSec component that generates the encryption and authentication keys that are used by IPsec.
A type of thin-client terminal server computing. It allows client computers to access and use applications loaded on the server, as well as to connect to and take control of a server.
Windows Internet Name Service (WINS
A service that resolves NetBIOS names to IP addresses.
Your Windows client failed to broadcast to all servers that it has accepted an IP address offer. What step is this in the four-step DORA process?
b. MAC address
You are in charge of setting up a DHCP server to hand out IP addresses and other IP-related information. Which of the following cannot be obtained from a DHCP server?
d. 67 and 68
Proseware, Inc., wants you to scan servers for DHCP activity. Which ports should you be looking for?
b. The scope was not activated.
A co-worker asks for your help in analyzing a problem with a DHCP server. The server's scope has been created and the IP range appears to be valid, yet no clients are obtaining IP addresses. What could be the reason for this? (Select the best answer.)
b. ipconfig /renew
The IT director has asked you set up a computer to acquire an IP address from a newly configured DHCP server. Which of the following is the best command to use?
You are troubleshooting a computer that cannot obtain the proper IP address from a DHCP server. When you run ipconfig, the address 169.254.25.53 shows up in the results. What service is assigning the IP address to the client?
c. Terminal Services is running
You have just scanned the ports of your server and see that port 3389 is open. What can you deduce from this?
a. Remote Desktop
Your boss asks you to take control of a server remotely from within the GUI of the client OS. What is the proper tool to use?
You have been asked by a client to install a VPN server. Which of the following services should be chosen in order to accomplish this?
Which protocol generates encryption and authentication keys that are used by IPsec?
The service resolves host names to IP addresses.
The service resolves NetBIOS names to IP addresses.
The step in the DORA four-step process is when a client broadcasts out to the network in order to find a DHCP server.
When renewing a DHCP assigned IP address, usually steps of the DORA process are involved.
To install the DHCP service on a Windows Server 2008 computer, you would use the section of the Server Manager.
ipconfig /release ipconfig /renew
The and commands are useful when troubleshooting a client that is having difficulty obtaining an IP address from a DHCP server.
A client that has obtained an IP address of 169.254.10.175 is getting the IP address from
Terminal Services (or Remote Desktop Services)
enables clients to connect to and take control of a server.
Virtual Private Networks
networks take the place of direct dial-up connections by using the inherent power of the Internet.
The two services necessary are WINS and RRAS.
A client wants you to install a service or services that will allow him to do the following:
1. Enable NetBIOS name to IP address resolution.
2. Allow virtual connectivity to the LAN from remote clients in a secure manner.
What two services will enable this functionality?
The three services necessary are DNS, DHCP, and Terminal Services.
The ABC Company wants you to install a service or services that will allow it to do the following:
1. Enable host name to IP address resolution internally in the company.
2. Enable client computers to obtain IP information automatically.
3. Allow administrators to access servers to control them remotely.
What three services will enable this functionality?
The DHCP server in the DIR-655 can be found by going to Setup > Networking Settings. See Figure 6-12 for the details of the solution.
Proseware, Inc., needs you to set up a DHCP server on a D-Link DIR-655 router. The following are details for the IP configuration:
• IP scope: 10.254.254.1-10.254.254.199
• DHCP lease time: 480 minutes
• Always broadcast: Enabled
• NetBIOS announcement: Enabled
• NetBIOS node type: Broadcast only
• Primary WINS address: 10.254.254.250
Access the DIR-655 emulator at the following link and configure the DHCP server appropriately: http://support.dlink.com/emulators/dir655/133NA/login.html
1. Any class A or class B network will do, but optimally it would be a class B private network number such as 172.16.0.0.
2. The ipconfig /release and ipconfig /renew commands should be run on each of the computers. There are several ways to automate this, including using scripting tools like the User State Migration Tool (USMT) or deploying a simple batch file to all systems concerned using SMS or another similar tool. The batch file could be set to execute at a specific time and it would contain both commands. It would be wise to consider those possibilities before manually typing the command on each system.
Proseware, Inc., currently uses the 192.168.1.0 Class C network for 225 computers. The company wants to add another 200 new computers and install a new DHCP server. Specifically, Proseware wants you to:
1. Select a classful IP network number that can support the total number of computers, old and new.
2. Obtain new addresses from the new DHCP server on the original 225 computers.
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