What is hibernate mode?

Published on May 4th, 2009 at 5:04 am

Last modified on August 13th, 2012 at 7:21 pm



One of the settings on a client’s laptop computer references a mode called “hibernate.” What is hibernate mode?

A) Operation of the computer is halted, but the CPU and memory remains powered

B) Only the RAM remains powered

C) The contents of memory are written to disk before powering down

D) Only the CPU remains powered


The answer: C) The contents of memory are written to disk before powering down

To conserve the maximum amount of battery life, hibernate mode copies the entire contents of RAM onto disk and completely powers down the system.

The incorrect answers:

A) Operation of the computer is halted, but the CPU and memory remains powered
This mode is called power-on standby, and it’s allows for a fast recovery of the system at the expense of ongoing battery use by the CPU and memory.

B) Only the RAM remains powered
The suspend to RAM mode finishes processing any tasks in the CPU, and then shuts down the computer while keeping power to the memory. This mode also powers on quickly, but uses less power than power-on standby mode.

D) Only the CPU remains powered
This isn’t a real power-saving mode, since powering the CPU without any memory power is relatively useless.

Want to know more? Watch “Optimizing and Upgrading Laptop and Portable Devices.”


As PC technicians, there’s often a need to upgrade or enhance the capabilities of our laptops and portable devices. In this video, we’ll show you the step-by-step processes that you can take to optimize and install memory, mini PCI cards, and hard drives inside laptops and portable devices.

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Category: CompTIA A+ Pop Quizzes

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