Certifications Quizzes MCSE 70-270 Exam

Question:
You are the desktop administrator for your company. Your company uses Windows XP Professional as a desktop operating system. You just installed a new Windows XP Professional using the same distribution share on the network that you normally use to install new Windows XP Professional computers. You then boot to the new operating system and log on as Administrator so you can begin installing a specialized application for the target user. After you log on, the operating system appears unstable. You want to verify that the operating system files were copied from the network share without becoming corrupted. What should you do?

Option A):
Run the Sfc.exe /scanboot command.
Option B):
Run the Sfc.exe /revert command.
Option C):
Run the Sfc.exe /cachesize command.
Option D):
Run the Sfc.exe /scannow command.

Correct Answer is Option D):
Run the Sfc.exe /scannow command.

Explanation:
You can use System File Checker (Sfc.exe) to verify the integrity of protected system files. Normally, Windows XP’s Windows File Protection feature detects changes to protected system files and replaces damaged or deleted system files with a cached copy. However, this scenario illustrates an example of how changes to protected files can occur when the operating system is not running. Therefore, Windows File Protection will not be triggered, and you will have to manually scan the system files using Sfc.exe. Use the /scannow switch to perform a scan immediately.
The /scanboot switch configures the operating system to perform a scan every time the operating system boots. The /revert switch changes the scan behavior back to the default, and the /cachesize = size switch configures how much disk space can be used to store cached versions of protected system files.