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Use the following questions to help determine whether you have learned enough to move on to the next lesson. If you have difficulty answering these questions, review the material in this lesson before beginning the next lesson. You can find answers to these questions in the Questions and Answers section at the end of this chapter. 1. Windows XP Professional automatically identifies Plug and Play devices and arbitrates their resource requests; the resource allocation among these devices is ___________________________ (permanent/not permanent). 2. How can you free any resource settings that you manually assigned to a Plug and Play device

When you link multiple GPOs to a single container object, you determine the precedence by specifying a Link Order value for each GPO. By default, GPOs appear in the Linked Group Policy Objects list in the order you add them, with the last GPO you added having the highest Link Order value. This means that the last GPO you link to a particular object has the lowest precedence. To modify the Link Order values, you use the arrows on the left side of the Linked Group Policy Objects tab. Somewhat counter-intuitively, the link order values in the GPMC reflect the precedence of the GPOs in the list, not the order in which computers apply them. For an OU with five linked GPOs, for example, the GPO with a link order value of 1 has the highest precedence and the one with a link order of 5 the lowest. This means, however, that when a computer applies the GPOs, it begins with the lowest precedence GPO, number 5, first, and applies the highest precedence GPO, number 1, last.

3. You get a call on the help desk from a user wondering why there is no Wireless Link icon in Control Panel on her desktop computer like the one on her laptop computer. What should you tell the user

We now have quite a list of object/relational mismatch problems, and it will be costly (in time and effort) to find solutions, as you may know from experience This cost is often underestimated, and we think this is a major reason for many failed software projects In our experience (regularly confirmed by developers we talk to), the main purpose of up to 30 percent of the Java application code written is to handle the tedious SQL/JDBC and manual bridging of the object/relational paradigm mismatch Despite all this effort, the end result still doesn t feel quite right We ve seen projects nearly sink due to the complexity and inflexibility of their database abstraction layers We also see Java developers (and DBAs) quickly lose their confidence when design decisions about the persistence strategy for a project have to be made One of the major costs is in the area of modeling.

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The relational and domain models must both encompass the same business entities, but an object-oriented purist will model these entities in a different way than an experienced relational data modeler would The usual solution to this problem is to bend and twist the domain model and the implemented classes until they match the SQL database schema (Which, following the principle of data independence, is certainly a safe long-term choice) This can be done successfully, but only at the cost of losing some of the advantages of object orientation Keep in mind that relational modeling is underpinned by relational theory Object orientation has no such rigorous mathematical definition or body of theoretical work, so we can t look to mathematics to explain how we should bridge the gap between the two paradigms there is no elegant transformation waiting to be discovered.

Device Manager provides you with a graphical view of the hardware installed on your computer and helps you manage and troubleshoot it. Device Manager flags each device with an icon that indicates the device type and the status of the device. By default, Device Manager does not display non Plug and Play devices and devices that are not currently connected to the computer (phantom devices). You can use the Windows XP Professional Fax Service to send and receive faxes with a locally attached fax device or with a remote fax device connected on your network. The Fax Service is not installed by default, so you must install it. Windows XP Professional supports a number of different types of I/O devices, including the following: