Question 2) CompTIA’s A+ Core Hardware Exam

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SubObjective: Identify the names, purpose, and characteristics, of system modules. Recognize these modules by sight or definition
Multiple Answer Multiple Choice

Which information is stored in CMOS? (Choose three.)

 

A. Date and time
B. Video settings
C. Windows passwords
D. Disk drive information
E. Power management settings

 

Answer:
A. Date and time
D. Disk drive information
E. Power management settings

 

Tutorial:
ROM BIOS contains a setup program to configure basic system settings such as the date and time, disk drive settings, passwords, boot drive sequence, and power management settings. The setup program is typically accessed by holding down the Delete key during POST. After the configuration is modified, the settings are written to CMOS memory where they are stored and used whenever the system boots.

 

BIOS, ROM BIOS, and CMOS are often used interchangeably, but there are distinctions between them. Strictly speaking, BIOS refers to all the low-level programs (drivers) that control the hardware and act as interfaces between the operating system and the system hardware. This includes the drivers stored in CMOS and on ROM chips in the system hardware, such as the graphics adapter card. ROM BIOS is that portion of the BIOS that is stored in the BIOS chip and runs when a computer first starts. This includes the POST, BIOS setup program, boot loader, and low-level drivers. CMOS is the physical chip used to store BIOS settings and maintain the system clock.

 

The motherboard manages the IDE/ATA drives, floppy drives, and many peripheral ports. Printers, modems, and network interface cards (NICs) are not managed by the motherboard.

 

For more information about BIOS, see How BIOS Works at http://computer.howstuffworks.com/bios.htm

 

Reference:
1. A+ Training Guide – CMOS RAM
– CMOS Setup Utilities

 

These questions are derived from the Self Test Software Practice Test for CompTIA Exam #220-301: A+ 2003 Core Hardware.

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