Which of the following modes saves maximum battery power while maintaining the current state of
a computing session?

A.
Hibernate mode

B.
Standby mode

C.
Session mode

D.
Safe mode

Explanation:

Hibernate mode saves maximum battery power while maintaining the current state of a computing
session.
What is hibernate mode? Hide
Hibernate mode is a power saving feature for computers. In hibernate mode, the current state of a
computer is saved to
the hard disk, and the computer shuts down. A user will have to power on the computer to restore
the previous settings.
When a computer resumes from hibernate mode, it reads the saved settings from the disk and
restores the system state
as it was before it entered hibernate mode. By default, hibernate mode is disabled. If a computer is
not ACPI-enabled or
APM-enabled, users will have to enter hibernate mode manually. Users cannot set the computer to
automatically hibernate
after a certain time. With ACPI-enabled and APM-enabled computers, users are able to set hibernate
mode automatically.
Answer option B is incorrect. The standby mode is a power saving feature for computers. In this
mode, a computer does not shut down
completely. The computer goes to low power state and, as a result, it consumes less power. When
the computer resumes from the standby

mode, full power is restored to its devices. During the standby mode, if the power supply is
disconnected or interrupted, data might be lost.
The standby mode is available automatically on ACPI-enabled or APM-enabled computers. Users do
not need to enable this mode manually.
This mode is not available in non-ACPI and non-APM based computers.
Answer option D is incorrect. Safe mode is not a power saving mode.
What is Safe Mode? Hide
Safe Mode is a Windows feature used to start a computer with basic drivers, such as mouse,
keyboard, etc. It bypasses
blocking issues, such as system corruption, or installation of incompatible drivers or system services,
enabling the
Administrator to resolve such issues.
Answer option C is incorrect. There is no such power saving mode as Session.
Reference: TechNet, Contents: “Chapter 20 – Power Management”