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When a user connects to the cluster, the following process occurs: 1. When the user logs on to the terminal server cluster, the terminal server receiving the initial client logon request sends a query to the session directory server. 2. The session directory server checks the username against its database and sends the result to the requesting server as follows:

DataView ordersDataView;

Earlier in this chapter, you learned how to create your own threads to perform asynchronous programming. In many cases, creating your own thread is not necessary or suggested. The threading system in .NET supports a built-in thread pool that can be used in many situations where you might expect to create your own threads. For example, let s take the same code we used in Lesson 1 to perform some work on a thread:

Answer C is correct. Enabling Windows Firewall on the host computer is all the administrator needs to do on a network that is already configured and running properly. Answers A and B are

The valid isolation level for a given transaction scope depends on the resource manager. Not every resource manager supports the complete range of isolation levels. If the resource manager doesn t support the requested level, it will change the isolation level to a supported value based on an algorithm specific to that manager. In the .NET world, the answer to the original question (regarding the visibility of updates in nested transactions) changes, based on the resource manager. For the LTM, the answer is, Yes, they are visible. The LTM does not provide any isolation for nested transactions. If the resource manager is SQL Server, the listed isolation levels are supported.

C. Correct: Two-node failover clustering is supported on SQL Server 2005 Standard Edition. D. Correct: Failover clustering beyond two nodes is supported on SQL Server 2005 Enterprise Edition.

System Restore Gives you another method of starting a system restore to a previous restore point, as discussed earlier in this lesson. Because you can access this menu when you boot from a DVD-ROM, this lets you repair your system when recent changes to system settings prevent your computer from booting normally. System Image Recovery Enables you to implement a System Image restore. You would choose this option if your hard disk failed or needed to be wiped. If system changes are causing problems, you would choose the System Restore option. Windows Memory Diagnostic Analyzes the computer memory (RAM) for hardware problems. Command Prompt Gives access to the file system, volumes, and files through a command-line interface. USING RECOVERY TOOLS If Windows RE is included in your installation DVD-ROM, you can boot from the Windows 7 installation media, select Repair Your Computer, and then select the option to use recovery tools to access the System Recovery Options. However, you can use the method described previously (pressing F8) whether the Windows RE files are present on your DVD-ROM or not and whether you boot from your installation DVD-ROM or from hard disk.

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Remote Assistance runs on top of Terminal Services technology, which means it must use the same port used by Terminal Services: port 3389. Remote Assistance will not work when outbound traffic from port 3389 is blocked. In addition, there are several other firewall-related concerns, particularly in relation to Network Address Trans lation (NAT).

// C# using Microsoft.MapPoint.Proxy; using Microsoft.MapPoint.ServiceAgent;

Windows Welcome user interface pages. You can then configure operating system settings or install applications on the target computer to create a customized configuration.

and a two-finger tap, and there is no single tap. Therefore, you can consider a single-finger tap to be the equivalent of a mouse click and, if needed, a two-finger tap can be considered to be the equivalent of a double-click.