MCSA/MCSE Self-Paced Training Kit (Exam 70-270): Installing ...

Objective 3.3 Configure Advanced Configuration Power Interface
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Objective 3.3
Configure Advanced
Configuration Power Interface
There are two ways to extend battery life in mobile computers: enhance battery technology
and decrease power utilization. The vendors of batteries have been slowly
improving their products since mobile computers were first introduced, but the greatest
gains over the past few years have come from making mobile computer hardware
and software more energy-efficient. Advanced Configuration Power Interface
(ACPI) allows computers running Windows XP Professional to use electricity more
efficiently than previous technologies. Windows XP Professional supports the ACPI for
sophisticated power management. Windows XP Professional also supports the older
and less-effective standard Advanced Power Management (APM).
On an ACPI system, power consumption is determined by the power settings configured
in the Power Options, the requirements of running services and applications, and
the capabilities of the installed hardware. To put it another way, Windows XP Professional
fully supports the ACPI standard, but applications and hardware must be
designed to work with ACPI and Plug and Play for the power management system to
be as effective as possible.
To successfully answer questions in this objective, you must know how to create, modify,
and select power schemes. You need to know how to enable and disable hibernation;
and how to configure power alarms, Standby mode, and advanced power
settings. You must be able to install, configure, and troubleshoot PC Cards. You need
to be able to unplug or eject hardware from the taskbar.