ITN107 - Personal Computer and Troubleshooting - Midterm Exam - Review Flashcards
The symbol Ω is is for the electrical unit
ohm
Type of expansion slot on a PC motherboard
PCIe
BIOS is an example of
firmware
used to connect monitors and other external multimedia devices
DisplayPort
when you turn on a computer this series of tests will be first performed
POST
used to cool components
heat sink
Diode can be used as
rectifier
unit for electrical current
amp
part of a power supply to lower the AC voltage
transformer
Memory modules are inserted in _____ slots on the on a motherboard
DIMM
The connector for a wired PC network connection is called:
RJ-45
(T/F) Functions that used to be provided by expansion cards are more often found as onboard ports today.
True
The ____ port transmits digital video and audio (not analog transmissions) and is often used to connect to home theater equipment.
HDMI
Digital Audio Port
S/PDIF
The most common desktop PC computer form factor is ___ .
ATX
Most desktop computers are using ______ interface to connect storage devices, like hard drives.
SATA
emovable memory modules used in PC computers are using type of memory called _________
RAM
ver the last few years, BIOS is being replaced with ______ .
UEFI
Type of wireless technology for short distance communication, with many applications, like Apple Pay and many others.
NFC
Match power supply cable colors to voltages
Ground
Black
Match power supply cable colors to voltages
3.3V
Orange
Match power supply cable colors to voltages
+12V
Yellow
Match power supply cable colors to voltages
+5V
Red
Match power supply cable colors to voltages
-12V
Blue
power consumption of a device
Watt
Common value in USA is 115
Volt
energy protection rating of surge suppressor
Joule
electrical resistance
Ohm
current
Amps
An electronic component, that stores electrical energy, commonly used for filtering voltage spikes and noise: (not battery)
Capacitor
The typical delivery of electricity from suppliers to consumers is using:
AC
A passive electromagnetic device, that changes the AC electricity current to voltage ratio between input and output:
Transformer
Early PC computers motherboard main power connector had 20 pins, today it has ___ pins.
24
The tool that can measure voltage, current, resistance and other characteristics of electricity is called:
Multimeter
_____ strap, mat or bracelet are used to protect equipment against electrostatic charges.
ESD
The highest voltage coming from a typical PC computer power supply is + ___ Volts.
12
Electric current will _______ with increasing voltage, assuming nothing else will change.
increase as well
The most important time to clean the inside of a computer is:
Before you remove any internal components.
Which are the most hazardous parts, because they contain hazardous, toxic chemicals:
Button Batteries
It _______ safe to put out fire fueled by electricity with water.
is not
The power grid in the United States provides AC current with frequency of ____ Hertz.
60
uses fins that draw heat away from the processor
heat sink
this sits on top of the processor and consists of a fan and heat sink
cooler
a cream that is placed between the bottom of the cooler heatsink and the top of the processor
thermal compound
a cream that is placed between the bottom of the cooler heatsink and the top of the processor
expansion slot
a power supply form factor
ATX
you clip it to the side of the computer case to dissipate any charge between you and the computer
ground bracelet
draws the most power in a system
video card
running a processor at a higher frequency than recommended
overclocking
a connector on a motherboard that consists of pins that stick up from the board
front panel header
keeps the motherboard from touching the case
spacer
If you touch an ungrounded component, you could damage it with __________ electricity.
static
While working inside the computer, you should clip a ____________ bracelet to the computer case.
ESD
2 most common materials for a CPU heat sink:
Aluminum , Copper
Intel refers to the thermal compound used between the processor and heat-sink as TIM, which stands for:
Thermal Interface Material
Along with the processor, what other device is the highest heat producer in the system?
video card
Under what circumstance is a liquid cooling system most likely used?
overclocking
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.
form factor
_______ computer cooling fans tend to run quieter.
Larger
To clean dust from a computer, both of these methods can be used, but which one is more effective:
Compressed Air
The CPU fans with ___ wires include variable speed control.
4
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:
does not matter
Which of these PC components will be typically the most difficult to remove from a desktop computer:
Motherboard
Per textbook, ____ for people to touch the inside parts and wires of an open PC computer, while turned on.
it is NOT safe
Firmware is located in
flash ROM chip
This type of technology connects typically storage devices.
SATA
Used to install additional devices in computers.
Expansion Slots
Also called the microprocessor.
CPU
Includes the real time clock
CMOS setup chip
These can be used to change the computer configuration while it is turned off.
jumpers
Used to store data and instructions for processing while the computer is turned on.
RAM
Used to store data and instructions permanently even when computer is turned off.
Hard Drive
Single line data transfer
Serial Port
Allows processor to communicate with memory and other peripherals.
Chipset
Most data cables inside of a PC computer today use _______ data transmission.
Serial
The _____ firmware is replacing BIOS and is used in most motherboards after 2012. The answers is a 4 letter acronym.
UEFI
issued by a slow device that is not ready
Wait state
the system of pathways used for communication which carry data
data bus
a set of rules and standards used for communication
protocol
when one physical machine hosts multiple activities that are normally done on multiple machines
virtualization
a component that provides a small trickle of electricity that enables CMOS RAM to hold configuration data
CMOS Battery
a device dedicated to timing the activities on the motherboard
system clock
connects to the North Bridge
Front Side Bus
a set of components on the motherboard that work closely with the processor to control the memory, buses, and peripherals
Chipset
two small posts or metal pins on the motherboard that are either open or closed
Jumper
installs in a PCI slot and provides another slot at a right angle
riser card
Which of the following form factor designs was for low-profile systems with a riser card, but was discontinued some time ago?
NLX
Which of these Intel CPU sockets is the most outdated?
PGA478
Which socket type is soldered to the motherboard, along with the CPU?
BGA
Which motherboard slot has direct access to the North Bridge?
primary PCIe slot
Which of the following is a technology that allows for multiple video cards to work together in one system?
CrossFire
FSB or QPI are buses connecting components _______ of the CPU.
outside
The AGP is an outdated expansion slot, that was designed specifically for ______ controllers.
video
The PCI Express is using a ______ bus
serial
The computer motherboard configuration data is stored in the _______ memory.
CMOS
Which of the following represents a method for accessing the BIOS setup program?
press a key during the BIOS POST
Which of the following settings can be changed only from the BIOS setup program?
change the boot sequence
What has occurred if you see the message “Chassis Intruded! System has halted.” the next time you start your computer?
the case has been opened
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?
TPM Chip
A FlexATX motherboard is _______ than an MicroATX motherboard.
smaller
an error checking technology used by DIMMs
ECC
a Rambus memory module
RDRAM
double-sided DIMMs that provide more than one bank
dual ranked
an error checking technology used by SIMMs
parity
a technology that allows a processor to handle more than one group of instructions
Hyper-Threading
the number of clock cycles it takes to write or read a row of data
RAS Latency
a task or group of instructions executed by the CPU
Thread
a placeholder module used in Rambus memory configurations
C-RIMM
memory chips installed on one side of the module
Single-sided
The factor used to determine clock speed between the processor and FSB
multiplier
Which of the following is NOT a feature of a processor?
amount of CMOS
Which of these processor features is related to executing multiple software instructions concurrently in one processor core:
multi threading
4 components inside of a processor:
Control unit
ALU
registers
cache
The Intel Centrino technology improves laptop performance and is involves the combination of these 3 components:
CPU
Chipset
Wi-fi
Which is the current, widely used memory technology in PC computers:
DDR4
Which type of memory used for CPU cache:
SRAM
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)
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)
Which of these is the latest memory error checking method:
ECC
DDR4 DIMM SDRAM memory modules have typically _____ number of pins.
288
The _____ memory technology has a 32-bit data bus, 232 pins, requires a placeholder in empty slots and it is no longer used.
RIMM
The ____ technology in a DIMM informs the BIOS of the module’s size, speed, voltage, and data path width.
SPD
Pins DDR2 or DDR3
240
Pins RIMMs or DDR DIMM
184
Pins SDRAM DIMM
168
Pins SIMMs
30 or 72 pins
a temporary voltage reduction
brownouts
elimination of accumulated magnetic fields
degauss
horizontally torn images on-screen
artifacts
compensates for power outage
UPS
a utility to wipe a hard drive clean
zero-fill utility
an error message shown on a blue screen
BSOD
a location where Windows keeps a copy of driver software
Driver Store
a tool in Windows 7/Vista that tests memory
Memory Diagnostics
a video setting you can try if the display is not working
VGA Mode
a round air duct that helps direct air to the processor
CAG
Which device protects your computer from brownouts or sags?
Uninterruptible Power Supply (UPS)
Which of the following is NOT a possible symptom of a problem with the electrical system?
Power related events in the Windows Event Viewer.
When reviewing some of the computer preventive maintenance recommendations:
Which would you consider the the most important task:
Backup data
Includes information such as physical data, toxicity, health effects, first aid, storage, shipping, disposal, and spill procedures
MSDS
Loose cables or cords in a traffic area
Trip Hazard
Intended to legally protect the intellectual property rights of organizations or individuals to creative works, which include books, images, and software
Copyrights
Archive copy of software
Backup
Counterfeit software
Piracy
Allows companies to distribute software to PCs from network servers or execute software directly off the server
Site License
Usually displayed during installation and requires that you agree to it before continuing with the installation
EULA
Keeps computer problems from occurring in the first place
Preventive maintenance
Which two of these troubleshooting steps are the most invasive and time consuming and should be performed as last:
Swap internal FRUs
Reseat all internal cables and components
The latest monitor technology is:
OLED
What are the two highest heat producing components in a PC computer?
Video Card
Processor
What are the 2 typical signs that a capacitor is bad or has failed?
The capacitors are discolored.
The capacitors have a crusty corrosion at the base of the capacitor.
What is a typical symptom of a CMOS battery failure?
Time and Date Settings Lost
What component of a motherboard is NOT considered to be a field replaceable unit?
Chipset
When purchasing a power supply, consider about ___ % higher wattage rating above your typical needs.
30
Depending on the manufacturer of the BIOS, what two different POST beep code sequences indicate a memory error?
continuous three short beeps and then a pause
continuous short beeps
indicates that the system is waiting for a response from a program or device
Windows pinwheel
Windows errors that are caused by problems with devices, device drivers, or a corrupted Windows installation
BSOD
a component made of metal that is designed to draw heat away from a processor into the fins
Heat Sink
a round air duct that helps direct air to the processor
CAG
a power supply with a second +12v rail
Dual Rail
a location where Windows keeps a copy of driver software
driver store
a device that provides battery power when the main power source goes out
UPS
a component that fits on the bottom of a laptop that can improve charge times and increase time between charges
sheet battery
the technology most commonly used by battery packs
Lithium ion
a tool in Windows 8/7/Vista that tests memory
Memory Diagnostics
One long and two short beeps when using an Award BIOS is an indication of what issue?
A video problem
Power (Watts) = ___ X ___
Current (in Amps) x Voltage (in Volts)
