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You have a portable computer that runs Windows 7. You configure the computer to enter sleep mode after 10 minutes of inactivity. You do not use the computer for 15 minutes and discover that the computer has not entered sleep mode.
You need to identify what is preventing the computer from entering sleep mode.
What should you do?
A. At a command prompt, run Powercfg energy.
B. At a command prompt, run Systeminfo /s localhost.
C. From Performance Monitor, review the System Summary.
D. From Performance Information and Tools, review the detailed performance and system information.
Correct Answer: A
Explanation/Reference:
Explanation:
Command-line Power Configuration
Powercfg.exe is a command-line utility that you can use from an administrative command prompt to manage Windows 7 power settings. It is possible to use Powercfg.exe to configure a number of Windows 7 powerrelated settings that you cannot configure through Group Policy or the Advanced Plan Settings dialog box. You can use Powercfg.exe to configure specific devices so that they are able to wake the computer from the Sleep state. You can also use Powercfg.exe to migrate power policies from one computer running Windows 7 to another by using the import and export functionality.
-energy
Check the computer for common energy-efficiency and battery life problems. Provides report in Hypertext Markup Language (HTML) format.
For more information on Powercfg.exe, consult the following Microsoft TechNet document:
http://technet.microsoft.com/en-us/library/cc748940.aspx.
