ITN107 - Personal Computer and Troubleshooting - Midterm Exam - Review Flashcards by Robert B | Brainscape

Q

The symbol Ω is is for the electrical unit

A

ohm

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Q

Type of expansion slot on a PC motherboard

A

PCIe

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Q

BIOS is an example of

A

firmware

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Q

used to connect monitors and other external multimedia devices

A

DisplayPort

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Q

when you turn on a computer this series of tests will be first performed

A

POST

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Q

used to cool components

A

heat sink

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Q

Diode can be used as

A

rectifier

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Q

unit for electrical current

A

amp

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Q

part of a power supply to lower the AC voltage

A

transformer

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Q

Memory modules are inserted in _____ slots on the on a motherboard

A

DIMM

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Q

The connector for a wired PC network connection is called:

A

RJ-45

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Q

(T/F) Functions that used to be provided by expansion cards are more often found as onboard ports today.

A

True

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Q

The ____ port transmits digital video and audio (not analog transmissions) and is often used to connect to home theater equipment.

A

HDMI

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Q

Digital Audio Port

A

S/PDIF

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Q

The most common desktop PC computer form factor is ___ .

A

ATX

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Q

Most desktop computers are using ______ interface to connect storage devices, like hard drives.

A

SATA

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Q

emovable memory modules used in PC computers are using type of memory called _________

A

RAM

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Q

ver the last few years, BIOS is being replaced with ______ .

A

UEFI

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Q

Type of wireless technology for short distance communication, with many applications, like Apple Pay and many others.

A

NFC

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Q

Match power supply cable colors to voltages

Ground

A

Black

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Q

Match power supply cable colors to voltages

3.3V

A

Orange

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Q

Match power supply cable colors to voltages

+12V

A

Yellow

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Q

Match power supply cable colors to voltages

+5V

A

Red

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Q

Match power supply cable colors to voltages

-12V

A

Blue

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Q

power consumption of a device

A

Watt

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Q

Common value in USA is 115

A

Volt

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Q

energy protection rating of surge suppressor

A

Joule

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Q

electrical resistance

A

Ohm

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Q

current

A

Amps

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Q

An electronic component, that stores electrical energy, commonly used for filtering voltage spikes and noise: (not battery)

A

Capacitor

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Q

The typical delivery of electricity from suppliers to consumers is using:

A

AC

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Q

A passive electromagnetic device, that changes the AC electricity current to voltage ratio between input and output:

A

Transformer

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Q

Early PC computers motherboard main power connector had 20 pins, today it has ___ pins.

A

24

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Q

The tool that can measure voltage, current, resistance and other characteristics of electricity is called:

A

Multimeter

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Q

_____ strap, mat or bracelet are used to protect equipment against electrostatic charges.

A

ESD

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Q

The highest voltage coming from a typical PC computer power supply is + ___ Volts.

A

12

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Q

Electric current will _______ with increasing voltage, assuming nothing else will change.

A

increase as well

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Q

The most important time to clean the inside of a computer is:

A

Before you remove any internal components.

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Q

Which are the most hazardous parts, because they contain hazardous, toxic chemicals:

A

Button Batteries

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Q

It _______ safe to put out fire fueled by electricity with water.

A

is not

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Q

The power grid in the United States provides AC current with frequency of ____ Hertz.

A

60

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Q

uses fins that draw heat away from the processor

A

heat sink

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Q

this sits on top of the processor and consists of a fan and heat sink

A

cooler

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Q

a cream that is placed between the bottom of the cooler heatsink and the top of the processor

A

thermal compound

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Q

a cream that is placed between the bottom of the cooler heatsink and the top of the processor

A

expansion slot

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Q

a power supply form factor

A

ATX

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Q

you clip it to the side of the computer case to dissipate any charge between you and the computer

A

ground bracelet

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Q

draws the most power in a system

A

video card

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Q

running a processor at a higher frequency than recommended

A

overclocking

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Q

a connector on a motherboard that consists of pins that stick up from the board

A

front panel header

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Q

keeps the motherboard from touching the case

A

spacer

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Q

If you touch an ungrounded component, you could damage it with __________ electricity.

A

static

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Q

While working inside the computer, you should clip a ____________ bracelet to the computer case.

A

ESD

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Q

2 most common materials for a CPU heat sink:

A

Aluminum , Copper

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Q

Intel refers to the thermal compound used between the processor and heat-sink as TIM, which stands for:

A

Thermal Interface Material

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Q

Along with the processor, what other device is the highest heat producer in the system?

A

video card

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Q

Under what circumstance is a liquid cooling system most likely used?

A

overclocking

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Q

The __________ is the specification that determines if PC case, power supply and motherboard are compatible with each other. That includes the mounting holes, dimensions, back panel ports, etc.

A

form factor

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Q

_______ computer cooling fans tend to run quieter.

A

Larger

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Q

To clean dust from a computer, both of these methods can be used, but which one is more effective:

A

Compressed Air

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Q

The CPU fans with ___ wires include variable speed control.

A

4

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Q

Typically there would be a two wire cable between the PC front panel power on switch and the Power SW connector on the motherboard. The orientation (or polarity) of this cable connection:

A

does not matter

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Q

Which of these PC components will be typically the most difficult to remove from a desktop computer:

A

Motherboard

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Q

Per textbook, ____ for people to touch the inside parts and wires of an open PC computer, while turned on.

A

it is NOT safe

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Q

Firmware is located in

A

flash ROM chip

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Q

This type of technology connects typically storage devices.

A

SATA

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Q

Used to install additional devices in computers.

A

Expansion Slots

Q

Also called the microprocessor.

A

CPU

Q

Includes the real time clock

A

CMOS setup chip

Q

These can be used to change the computer configuration while it is turned off.

A

jumpers

Q

Used to store data and instructions for processing while the computer is turned on.

A

RAM

Q

Used to store data and instructions permanently even when computer is turned off.

A

Hard Drive

Q

Single line data transfer

A

Serial Port

Q

Allows processor to communicate with memory and other peripherals.

A

Chipset

Q

Most data cables inside of a PC computer today use _______ data transmission.

A

Serial

Q

The _____ firmware is replacing BIOS and is used in most motherboards after 2012. The answers is a 4 letter acronym.

A

UEFI

Q

issued by a slow device that is not ready

A

Wait state

Q

the system of pathways used for communication which carry data

A

data bus

Q

a set of rules and standards used for communication

A

protocol

Q

when one physical machine hosts multiple activities that are normally done on multiple machines

A

virtualization

Q

a component that provides a small trickle of electricity that enables CMOS RAM to hold configuration data

A

CMOS Battery

Q

a device dedicated to timing the activities on the motherboard

A

system clock

Q

connects to the North Bridge

A

Front Side Bus

Q

a set of components on the motherboard that work closely with the processor to control the memory, buses, and peripherals

A

Chipset

Q

two small posts or metal pins on the motherboard that are either open or closed

A

Jumper

Q

installs in a PCI slot and provides another slot at a right angle

A

riser card

Q

Which of the following form factor designs was for low-profile systems with a riser card, but was discontinued some time ago?

A

NLX

Q

Which of these Intel CPU sockets is the most outdated?

A

PGA478

Q

Which socket type is soldered to the motherboard, along with the CPU?

A

BGA

Q

Which motherboard slot has direct access to the North Bridge?

A

primary PCIe slot

Q

Which of the following is a technology that allows for multiple video cards to work together in one system?

A

CrossFire

Q

FSB or QPI are buses connecting components _______ of the CPU.

A

outside

Q

The AGP is an outdated expansion slot, that was designed specifically for ______ controllers.

A

video

Q

The PCI Express is using a ______ bus

A

serial

Q

The computer motherboard configuration data is stored in the _______ memory.

A

CMOS

Q

Which of the following represents a method for accessing the BIOS setup program?

A

press a key during the BIOS POST

Q

Which of the following settings can be changed only from the BIOS setup program?

A

change the boot sequence

Q

What has occurred if you see the message “Chassis Intruded! System has halted.” the next time you start your computer?

A

the case has been opened

Q

What must your motherboard have to use BitLocker Encryption in Windows 7 which will ensure that your hard drive cannot be used in another computer?

A

TPM Chip

Q

A FlexATX motherboard is _______ than an MicroATX motherboard.

A

smaller

Q

an error checking technology used by DIMMs

A

ECC

Q

a Rambus memory module

A

RDRAM

Q

double-sided DIMMs that provide more than one bank

A

dual ranked

Q

an error checking technology used by SIMMs

A

parity

Q

a technology that allows a processor to handle more than one group of instructions

A

Hyper-Threading

Q

the number of clock cycles it takes to write or read a row of data

A

RAS Latency

Q

a task or group of instructions executed by the CPU

A

Thread

Q

a placeholder module used in Rambus memory configurations

A

C-RIMM

Q

memory chips installed on one side of the module

A

Single-sided

Q

The factor used to determine clock speed between the processor and FSB

A

multiplier

Q

Which of the following is NOT a feature of a processor?

A

amount of CMOS

Q

Which of these processor features is related to executing multiple software instructions concurrently in one processor core:

A

multi threading

Q

4 components inside of a processor:

A

Control unit

ALU

registers

cache

Q

The Intel Centrino technology improves laptop performance and is involves the combination of these 3 components:

A

CPU

Chipset

Wi-fi

Q

Which is the current, widely used memory technology in PC computers:

A

DDR4

Q

Which type of memory used for CPU cache:

A

SRAM

Q

The computer memory module speed is specified in catalogs or literature either by the speed in MHz (for example DDR4-xxxx) or in MB/s (for example PC4-xxxx) or both.

For example, if the memory speed is DDR4-4700, then the corresponding speed in MB/s is PC4-______ (Type only the number as answer)

A

37600

The PC number (in MB/sec) equals to the DDR number (in MHz) x 8 (the data bus is 8 Bytes or 64 bits wide)

Q

Which of these is the latest memory error checking method:

A

ECC

Q

DDR4 DIMM SDRAM memory modules have typically _____ number of pins.

A

288

Q

The _____ memory technology has a 32-bit data bus, 232 pins, requires a placeholder in empty slots and it is no longer used.

A

RIMM

Q

The ____ technology in a DIMM informs the BIOS of the module’s size, speed, voltage, and data path width.

A

SPD

Q

Pins DDR2 or DDR3

A

240

Q

Pins RIMMs or DDR DIMM

A

184

Q

Pins SDRAM DIMM

A

168

Q

Pins SIMMs

A

30 or 72 pins

Q

a temporary voltage reduction

A

brownouts

Q

elimination of accumulated magnetic fields

A

degauss

Q

horizontally torn images on-screen

A

artifacts

Q

compensates for power outage

A

UPS

Q

a utility to wipe a hard drive clean

A

zero-fill utility

Q

an error message shown on a blue screen

A

BSOD

Q

a location where Windows keeps a copy of driver software

A

Driver Store

Q

a tool in Windows 7/Vista that tests memory

A

Memory Diagnostics

Q

a video setting you can try if the display is not working

A

VGA Mode

Q

a round air duct that helps direct air to the processor

A

CAG

Q

Which device protects your computer from brownouts or sags?

A

Uninterruptible Power Supply (UPS)

Q

Which of the following is NOT a possible symptom of a problem with the electrical system?

A

Power related events in the Windows Event Viewer.

Q

When reviewing some of the computer preventive maintenance recommendations:
Which would you consider the the most important task:

A

Backup data

Q

Includes information such as physical data, toxicity, health effects, first aid, storage, shipping, disposal, and spill procedures

A

MSDS

Q

Loose cables or cords in a traffic area

A

Trip Hazard

Q

Intended to legally protect the intellectual property rights of organizations or individuals to creative works, which include books, images, and software

A

Copyrights

Q

Archive copy of software

A

Backup

Q

Counterfeit software

A

Piracy

Q

Allows companies to distribute software to PCs from network servers or execute software directly off the server

A

Site License

Q

Usually displayed during installation and requires that you agree to it before continuing with the installation

A

EULA

Q

Keeps computer problems from occurring in the first place

A

Preventive maintenance

Q

Which two of these troubleshooting steps are the most invasive and time consuming and should be performed as last:

A

Swap internal FRUs

Reseat all internal cables and components

Q

The latest monitor technology is:

A

OLED

Q

What are the two highest heat producing components in a PC computer?

A

Video Card

Processor

Q

What are the 2 typical signs that a capacitor is bad or has failed?

A

The capacitors are discolored.

The capacitors have a crusty corrosion at the base of the capacitor.

Q

What is a typical symptom of a CMOS battery failure?

A

Time and Date Settings Lost

Q

What component of a motherboard is NOT considered to be a field replaceable unit?

A

Chipset

Q

When purchasing a power supply, consider about ___ % higher wattage rating above your typical needs.

A

30

Q

Depending on the manufacturer of the BIOS, what two different POST beep code sequences indicate a memory error?

A

continuous three short beeps and then a pause

continuous short beeps

Q

indicates that the system is waiting for a response from a program or device

A

Windows pinwheel

Q

Windows errors that are caused by problems with devices, device drivers, or a corrupted Windows installation

A

BSOD

Q

a component made of metal that is designed to draw heat away from a processor into the fins

A

Heat Sink

Q

a round air duct that helps direct air to the processor

A

CAG

Q

a power supply with a second +12v rail

A

Dual Rail

Q

a location where Windows keeps a copy of driver software

A

driver store

Q

a device that provides battery power when the main power source goes out

A

UPS

Q

a component that fits on the bottom of a laptop that can improve charge times and increase time between charges

A

sheet battery

Q

the technology most commonly used by battery packs

A

Lithium ion

Q

a tool in Windows 8/7/Vista that tests memory

A

Memory Diagnostics

Q

One long and two short beeps when using an Award BIOS is an indication of what issue?

A

A video problem

Q

Power (Watts) = ___ X ___

A

Current (in Amps) x Voltage (in Volts)