Chapter 5 Review Flashcards
Bios programs that enable hardware to function are called what?
Services are bios programs that make hardware functional
POST
Is a texting program in BIOS
CMOS
Is a type of memory chip
Device drivers
Make hardware function in an operating system
What is found in BIOS?
POST - The power of self test - program is contained in the BIOS chip
What is the primary purpose of POST?
It performs diagnostic tests before booting the operating system
For which failures would you expect POST to issue beep codes?
Video card - beep codes are issued when error messages can’t be displayed on the screen, thus, a bad video card would cause beep codes
How would a technician start the system setup program?
Press a certain key before the computer boots the operating system
To prevent random people from booting the OS a technician should do what?
Set a user password - A user password prevents the OS from booting until the password is entered
What is most likely to cause a computers reported time to fall behind?
The CMOS battery is weak or failing
Which battery provides power to the RTC and CMOS chip?
CR2032 — this is a standard CMOS battery
What does BIOS/UEFI provide for the computer?
BIOS/UEFI provides the programming that enables the CPU to communicate with other hardware
What does nonvolatile mean when discussing memory?
Nonvolatile memory means the stored info isn’t erased when the computer is turned off
What is the predominant form of ROM used in systems today called?
The predominant form of ROM used in systems today is called flash ROM
Hebert wants to change the boot order on his system. Which BIOS/UEFI feature must Hebert use to do this?
Hebert needs to use the system set up utility
What keystrokes will most likely enable access to the system set up utility?
This varies depending on the UEFI system, but the most common is DELETE
While poking around his system setup, Troy noticed a setting for PXE. what is a PXE used for?
Prevent execution environment (PXE) enables your system to boot from a network system
David finds that a disgruntled former employee decided to sabotage her computer when she left by putting a password in CMOS that stops the computer from booting. The her can David do to solve this problem?
He should find the CLRTC jumper on the motherboard and then boot the computer with a shunt on the jumper to clear the CMOS into.
Rick went wild in CMOS and made a bunch of changes in jet he thought would optimize his PC. Now most of his PC doesn’t work. The computer powers up but he can only get to CMOS, not into windows. What should he do to get back up and running?
Have him load optimized default settings
Everytime Jill boots her system; it goes through POST beeps once and then loads windows normally. What is this beep code telling her?
A single beep means everything is all good
Amanda’s old system used DDR5 RAM but doesn’t support the latest speeds. What should she consider as a course of action?
It’s fairly common to update your flash ROM for reasons such as achieving faster RAM speed
