What does BIOS/UEFI provide for the computer? (Choose the best answer.)
C) The programming that enables the CPU to communicate with other hardware
BIOS/UEFI provides the programming that enables the CPU to communicate with other hardware.
What does nonvolatile mean when discussing memory?
C) The stored information isn’t erased when the computer is turned off.
Nonvolatile memory means the stored information isn’t erased when the computer is turned off.
What is the predominant form of ROM used in systems today called?
B) Flash ROM
The predominant form of ROM used in system’s today is called flash ROM
Henry wants to change the boot order on his system. Which BIOS/UEFI feature must Henry use to do this?
B) System setup utility
Henry needs to use the system setup utility.
Which of the following keystrokes will most likely enable access to the system setup utility?
D) delete
Which keystroke used to access the system setup utility varies depending on the UEFI system, but the most common from the choices offered is the delete key.
While poking around his system setup, Troy notices a setting for PXE. What is a PXE used for?
C) A PXE enables your system to boot from a networked system.
A preboot execution environment (PXE) enables your system to boot from a networked system.
Davos 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. What can Davos do to solve this problem?
B) Davos should find the CLRTC jumper on the motherboard. Then she can boot the computer with a shunt on the jumper to clear the CMOS information.
Richard over in the sales department went wild in CMOS and made a bunch of changes that 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. Which of the following tech call answers would most likely get him up and running again?
D) Boot into the CMOS setup program and then find the option to load OS Optimized Defaults. Save and exit CMOS; boot normally into Windows. You should be up and running in no time.
Every time Jill boots her system, it goes through POST, beeps once, and then loads Windows normally. What is this beep code telling her?
C) Everything is OK.
On almost all systems, a single beep indicates everything is OK.
Amanda’s old system uses DDR5 RAM but doesn’t support the latest speeds. Which of the following should she consider as a course of action?
B) Update the motherboard flash ROM.
It’s fairly common to update your flash ROM for reasons such as achieving faster RAM speeds.
Someone has placed a CMOS password on a computer and has forgotten the password. What should you do?
B) Clear the CMOS password by removing the shunt from the clear CMOS jumper for a few seconds.
Most motherboards have a labeled Security or Password jumper. Removing or moving the shunt for a few seconds clears any CMOS passwords.
Incorrect Answers:
You will not be able to enter CMOS if you don't have the password. Holding down the CTRL key while booting won't clear the CMOS password. You won't be able to boot to anything if you can't get past CMOS.
What is the primary purpose of POST?
C) It performs diagnostic tests before booting the operating system.
POST is a program in the computer's BIOS chip that performs diagnostics prior to the computer booting an operating system.
Incorrect Answers:
POST can send messages to a POST card but the card does not contain the POST program.
A power supply provides power to the CPU. POST does not enable hardware, it tests hardware.
For which failures would you expect POST to issue beep codes? (Choose two)
A. No memory
B. No CPU installed
C. Video card
D. Missing keyboard
E. No printer found
F. No network connected
No memory and Video card
Beep codes are generated by BIOS, when the system is unable to boot far enough to display a POST error message on the screen.
A bad video card or lack of memory would cause beep codes.
Incorrect Answers:
A Missing keyboard, printers, and network connection failures would not cause a beep code, as they do not prevent the display from working.
A missing CPU will not cause a beek code, as the POST program will not run without a CPU.
BIOS programs that enable hardware to function are called what?
D) Services
Services are BIOS programs that make hardware functional.
Incorrect Answers:
POST is a testing program in BIOS.
CMOS is a type of memory chip.
Device drivers make hardware function in an operating system.
Which is more likely to cause a computer's reported time to fall behind?
A) The CMOS battery is weak or failing.
A weak or failed CMOS battery will slow the system clock and may cause other problems.
Incorrect Answers:
The power supply would not affect the time.
Missing a leap year won't affect the computer's clock rate.
Low wall voltage is adjusted in the power supply; if it is too low, the computer won't boot.
BIOS programs that enable hardware to function are called what?
A) Services
Services are BIOS programs that make hardware functional. POST is a testing program in BIOS. CMOS is a type of memory chip. Device drivers make hardware function in an operating system.
Which is found in BIOS?
B) POST
The Power On Self Test (POST) program is contained in the BIOS chip. The CPU is found on the motherboard, not within BIOS. The CMOS battery is not inside a chip. The real-time clock (RTC) is in the CMOS chip, not the BIOS chip.
What is the primary purpose of POST?
C) It performs diagnostic tests before booting the operating system
For which failures would you expect POST to issue beep codes?
A) 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. Missing keyboard, printers, and network connection failures can all be shown on a screen. The POST program will not run at all without a CPU installed (and thus would not generate a beep code).
How would a technician start the system setup program?
C) Press a certain key before the computer boots the operating system
To prevent random people from booting the OS, a technician should do what?
C) Set a user password
A user password prevents the OS from booting until the password is entered. The administrator password prevents access to the setup program until the password is entered. Flashing the BIOS is for fixing bugs and adding features to the contents of the BIOS chip. Removing the CMOS battery might prevent the OS from booting, but it is not the best answer.
Which is more likely to cause a computer's reported time to fall behind?
C) The CMOS battery is weak or failing
A weak or failed CMOS battery will slow the system clock and may cause other problems. Missing a leap year won't affect the computer's clock rate. Low wall voltage is adjusted in the power supply; if it is too low, the computer won't boot.
Which battery provides power to the RTC and CMOS chip?
C) CR2032
CR2032 is the standard CMOS battery. The other choices are not normally used for CMOS in a computer.
Author
dior
ID
361958
Card Set
Mike Myers_Chapter 5_Firmware
Description
Questions are from the end of the chapter and TotalTester Online.
