Series of audible tones produced by a motherboard during the POST. These tones identify whether the POST has completed successfully or whether some piece of system hardware is not working properly.

Used to wake up the CPU after the
power supply has tested for proper voltage

Describes a failure in which a component
or whole system will not boot; usually related to a manufacturing defect of a component. Could also be caused by overheating and physical damage to computer components

7. A client calls to complain that his computer starts up, but crashes when Windows starts to load. After a brief set of questions, you find out that his nephew upgraded his RAM for him over the weekend and couldn’t get the computer to work right afterwar

3. When you test voltage with a multimeter, you can assume the outlet or connector is functioning properly if the reading is within a certain percentage of the expected number. What is that maximum percentage by which the reading can vary?

Any device with a functional operating
system.

Segment of code in a system’s BIOS that
scans for an operating system, looks specifically for a valid boot sector, and, when one is found, hands control over to
the boot sector;

Interrupt code sent to the
processor that cannot be ignored. Typically manifested as a
BSoD.

9. Which of the following will most likely result in a POST beep code message?
A. The system is overheating.
B. The video card is not seated properly.
C. The keyboard is unplugged.
D. The hard drive has crashed

11. Amanda bought a new system that, right in the middle of an important presentation, gave her a Blue Screen of Death. Now her system won’t boot at all, not even to CMOS. After extensive troubleshooting, she determined that the motherboard was at fault a

Infamous error screen that appears when Windows encounters an unrecoverable error.

Cards that snap into expansion slots on your computer to identify which piece of hardware is causing the trouble.

Occurs when a system device fails due
to a manufacturing or some other type of defect

10. After a sudden power outage, Morgan’s PC rebooted, but nothing appeared on the screen. The PC just beeps at him, over and over and over. What’s most likely the problem?
A. The power outage toasted his RAM.
B. The power outage toasted his video card.
C

12. Solon has a very buggy computer that keeps locking up at odd moments and rebooting spontaneously. He suspects the motherboard. How should he test it?
A. Check settings and verify good components.
B. Verify good components and document all testing.
C.

Technology that enables a PC to boot without any local storage by retrieving
an OS from a server over a network.

Critical failure usually associated with
manufacturing defects

Error code usually seen when separate active programs conflict on resources or data

When you turn on your computer, what is accessed first?

Which kind of fire extinguisher should you use for computer equipment?

Disk that contains a functional operating
system; can also be a floppy disk, USB thumb drive, or optical disc.

Minor memory-addressing error.

If the computer appears dead, with no beeps or screen responses, you can insert a _________________ in an expansion slot to diagnose what is wrong

8. Sam has installed a new CPU in a client’s computer, but nothing happens when he pushes the power button on the case. The LED on the motherboard is lit up, so he knows the system has power. What could the problem be?
A. He forgot to disconnect the CPU f

What should you check first if a computer will not start and the fan in the power supply will not turn?