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To complete the lessons in this chapter, you must have completed the following tasks:

Figure 8-19: Share items 9. Click Start. In the Search Programs And Files text box, type HomeGroup. In the Start menu, click the HomeGroup item. This opens the HomeGroup control panel. 10. Click the Change The Password item. On the Change Your HomeGroup Password dialog box, click Change The Password. 11. On the Type A New Password For Your HomeGroup page, enter the password P@ssw0rd and then click Next. 12. Verify that your HomeGroup password settings match those shown in Figure 8-20, and then click Finish.

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Lessons in this chapter:

Quick Check Answer Although in both cases information about the error can be displayed, the ErrorProvider control places the notification feedback (the flashing icon) close to the area that is in error, while the status bar information is placed at the bottom of the screen where users won t look for it unless they are forced to. The use of the ErrorProvider control doesn t eliminate some of the issues associated with control-level validation using the Validating event. Specifically, the error icon isn t set unless the Validating handler is invoked, which means that the control needs to gain focus at some point or the ValidateChildren method is invoked on the form. And once the validations have been performed, it is still necessary to ensure that none of the controls have the Error property set to a nonempty string. This functionality, unfortunately, isn t built into the standard form. However, the following code implements a mechanism for checking if all of the controls are valid:

Correct Answers: D A. Incorrect: Although a figure of 72 indicates that the processor is doing a significant amount of work, a figure above 90 would be of more concern. The standout figure is the disk queue length of 3. B. Incorrect: The Server Work Queues: Queue Length average figure is not optimal, but it is not as worrying as the disk queue length of 3. C. Incorrect: A figure of 65% for Memory: % Committed Byes in use is something that should be watched, but not as concerning as the disk queue length. D. Correct: An average disk queue length of 3 indicates that the disk cannot keep up with the rest of the server. If you have the chance, try to replace the disk with something faster. E. Incorrect: The network output queue length indicates that the network card is working near its capacity but does not suggest overextension like the disk queue length does.

SetTextDelegate del = new SetTextDelegate(SetText);

tran = New MessageQueueTransaction()

myHash.ComputeHash(reader.ReadBytes((int)file.Length)); if (Convert.ToBase64String(myHash.Hash) == args[1]) { Console.WriteLine( Hash verified ); } else { Console.WriteLine( Hash incorrect );

Federation servers The federation server must have both a server authentication certificate and a token-signing certificate installed before it can perform any AD FS operations and become fully functional. In addition, the trust policy that forms the basic tenet of the federation relationship must rely on a verification certificate. The latter is nothing more than the public key of the token-signing certificate.

Nonclustered indexes have a structure separate from the data rows of the table itself. A nonclustered index contains nonclustered index key values and each key value entry has a pointer to the data row that contains the key value. The pointer from an index row in a nonclustered index to a data row is called a row locator. The structure of the row locator depends on whether the actual data pages are stored in a heap or a clustered table. For a heap, a row locator is a pointer to the row. For a clustered table, the row locator is the clustered index key.