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A perception exists among some database administrators that the SQL Server service does not need to be audited and safeguarded because it cannot cause any harm. This is not correct. A SQL server administrator with an sa account or an account granted the sysadmin role is authorized to run any code within the SQL Server service by using the xp_cmdshell or xp_regwrite procedure. Fortunately, however, the service does not need to run under the context of an administrative account to perform ordinary tasks. A user account that is allowed to log in as a service is sufficient. The exceptions are when the SQL server is part of a cluster, when the server needs to communicate with other SQL Server servers across a network (other than for replication), or when you need to make the xp_cmdshell procedure available to ordinary users. Even in these cases, the privileges of the administrative account are limited by the SQL Server service policies. In general, the lower the level of the privileges granted by the SQL Server service account, the less risky is its interaction with the operating system.

Programming Microsoft SQL Server with T-SQL User-Defined Stored Procedures, Functions, Triggers, and Views

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Figure 9-12

parameter that tells the aggregate whether or not to include zeros in the calculation (because the inclusion of a zero would always result in an aggregate of zero). The possibility of having multiple parameters in user-defined aggregates was added in SQL Server 2008. There are quite a few observations to make about this code:

Correct Answers: A A. Correct: The Date, Time, Language, and Regional Options dialog box enables you to do just about anything relating to formats and languages. B. Incorrect: You can change the format of dates by using the Regional And Lan guage Options dialog box. C. Incorrect: There is no option to change the format of dates in the System Prop erties dialog box. D. Incorrect: Right-clicking the clock enables you to adjust the system date and time but not change the date format. To change the format of the date, click Con trol Panel, select Date, Time, Language, and Regional Options, and then select Regional And Language Options. Click the Customize button in the Regional And Language Options dialog box, and change the date format.

// Register the channel with the remoting system. ChannelServices.RegisterChannel(channel, false); // Register the remote object. RemotingConfiguration.RegisterWellKnownClientType( typeof(Patient), "tcp://localhost:9000/Patient.rem"); // Create an instance of the remote Patient class. Patient newPatient = new Patient(); // Call the PersonalInformation method on the remote object.

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Managing printers, which is one of the most important aspects of printer administration, includes the following tasks:

Option 003 Router 006 DNS Servers 015 DNS Domain Name 044 WINS/NBNS Servers 046 WINS/NBT Node Type 047 NetBIOS Scope ID

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Answers to these questions and explanations of why each answer choice is right or wrong are located in the Answers section at the end of this book.

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A snapshot is not an independent copy of the data. If the original data is destroyed, the snapshot data is useless because it contains only the recent changes to the data. The advantage of this backup method is that you are writing only the changes to disk instead of all the data, so the snapshot can be created very quickly. The disadvantage is that you do not have a recoverable backup if your original data is corrupted. Streaming and VSS backup technologies cannot be combined either during backups or restores. Legacy incremental backups cannot be taken after VSS full backups. You cannot combine a VSS differential backup with a legacy full backup at restore time.

4. After successfully establishing the Internet connection for the selected notebook computer, how would you enable ICS on the host computer

Figure 11-6: Configure BitLocker startup options If you choose to require a startup key, Windows prompts you to designate the USB storage device that hosts the startup key. Windows then writes the startup key to the designated device. The next step in the BitLocker process involves storing the recovery key, as shown in Figure 11-7. The recovery key is different from the startup key or PIN. You should store the recovery key in a different location to the startup key. That way, if you lose your startup key, you have not also lost the recovery key.

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SignHash Generates a digital signature based on the hash of a file. SignData Generates a digital signature by first generating the hash for a file, and