c# qr code generator Lesson 2 Review in C#

Generator QR Code in C# Lesson 2 Review

Lesson 2 Review
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1. What is the Registry and what does it do
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The Registry is a hierarchical database in which Windows XP Professional stores hardware and software settings. The Registry provides the appropriate initialization information to boot Windows XP Professional, to start applications, and to load components such as device drivers and network protocols.
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2. What are some of the Windows XP Professional components that use the Registry
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Windows NT kernel, device drivers, user profiles, setup programs, hardware profiles, and NTDETECT.COM.
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3. How do you access the Registry Editor
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On the Start menu, click Run, type Regedit and then click OK.
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Questions and Answers
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4. Why should you make most of your configuration changes through either Control Panel or Administrative Tools rather than by editing the Registry directly with the Registry Editor
Using the Registry Editor to modify the Registry is dangerous because the Registry Editor saves data automatically as you make entries or corrections, so new Registry data takes effect immediately. If you incorrectly edit the Registry it can cause serious, system-wide problems that could require you to reinstall Windows XP Professional.
Lesson 3 Review
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1. What is safe mode and why do you use it
Starting Windows XP Professional in safe mode uses limited device drivers and system services, and no network connections. Safe mode also ignores programs that automatically start up, user profiles, programs listed in the Registry to automatically run, and all local group policies. Safe mode allows Windows to start successfully when the normal Windows XP startup fails. You use safe mode because it provides access to Windows XP Professional configuration files so you can make configuration changes. You can disable or delete a system service, a device driver, or application that automatically starts that prevents the computer from starting normally.
2. How do you start Windows XP Professional in safe mode
To start Windows XP Professional in safe mode, restart or boot the computer and press F8 during the operating system selection phase.
3. When is the Last Known Good configuration created
After you reboot the computer, the kernel copies the information in the Current control set to the Clone control set during the kernel initialization phase. When you successfully log on to Windows XP Professional, the information in the Clone control set is copied to the Last Known Good control set.
4. When do you use the Last Known Good configuration
If you change the Windows XP Professional configuration to load a driver and have problems rebooting, you use the Last Known Good process to recover your working configuration.
5. How can you install the Windows XP Professional Recovery Console on your computer
To install the Recovery Console, insert the Windows XP Professional CD-ROM into your CD-ROM drive. Open a Command Prompt window, change to the i386 folder on the Windows XP Professional CD, and then run the winnt32 command with the /cmdcoms switch.
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4
Modifying and Troubleshooting the Startup Process
Case Scenario Exercise
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1. What is the likely problem
Because the user has made no other configuration changes, and because the problem started after the new driver installation, the most likely problem is the new driver.
2. You decide to remove the new driver. However, the computer stops responding before you can do so. What should you do Choose the correct answer. a. Start the computer using the Last Known Good configuration. b. Start the computer in safe mode and try to roll back the driver. c. Use the Recovery Console to roll back the new driver. d. Use the Recovery Console to edit the BOOT.INI file.
The correct answer is B. Starting the computer in safe mode loads only a generic video driver. You should then be able to roll back the new driver. A is not correct because the Last Known Good configuration is created after a successful logon. Because the user could log on following the driver installation, reverting to the Last Known Good configuration would not roll back the new driver. C is not correct because you cannot use the Recovery Console to roll back drivers. D is not correct because editing the BOOT.INI file does not help in this situation.
5 Configuring Windows XP Professional
Exam Objectives in this :
Manage and troubleshoot Web server resources. Implement, manage, and troubleshoot display devices.
Configure multiple-display support. Install, configure, and troubleshoot a video adapter.
Configure Advanced Configuration Power Interface. Configure and manage user profiles and desktop settings. Configure support for multiple languages or multiple locations.
Enable multiple-language support. Configure multiple-language support for users. Configure local settings. Configure Microsoft Windows XP Professional for multiple locations.
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