Chapter 1 Test Questions
A customer needs additional storage space on an older computer. What will the technician look at in the computer to determine if an additional hard drive can be added? adequate RAM an open PCI/PCIe expansion slot an available PATA/SATA connection BIOS version the heat that is generated and air flow requirements
an available PATA/SATA connection
Which characteristic describes a DIP? an individual memory chip that has dual rows of pins used to attach it to the motherboard chips that require constant power to function and are often used for cache memory chips that run at clock speeds of 800 MHz and have a connector with 240 pins chips whose contents can be "flashed" for deletion and are often used to store BIOS
an individual memory chip that has dual rows of pins used to attach it to the motherboard
Which tool can protect computer components from the effects of ESD? antistatic wrist strap surge suppressor UPS SPS
antistatic wrist strap
Which two devices are considered input devices? (Choose two.) biometric authentication device printer digital camera projector speakers
biometric authentication device and digital camera
Which term is used to define the wires on a motherboard that move data from one part of a computer to another? bus I/O card bridge chipset
bus
Which characteristic describes GDDR SDRAM? chips specifically designed for video graphics that are used in conjunction with a dedicated GPU chips that require constant power to function and are often used for cache memory chips that run at clock speeds of 800 MHz and have a connector with 240 pins chips whose contents can be "flashed" for deletion and are often used to store BIOS
chips specifically designed for video graphics that are used in conjunction with a dedicated GPU
Which characteristic describes PROM? chips that are manufactured blank and then can be programmed once by a PROM programmer chips that run at clock speeds of 800 MHz and have a connector with 240 pins chips specifically designed for video graphics that are used in conjunction with a dedicated GPU chips that require constant power to function and are often used for cache memory
chips that are manufactured blank and then can be programmed once by a PROM programmer
Which characteristic describes ECC memory? chips that can detect multiple bit errors and correct single bit errors in memory chips specifically designed for video graphics that are used in conjunction with a dedicated GPU an individual memory chip that has dual rows of pins used to attach it to the motherboard chips that run at clock speeds of 800 MHz and have a connector with 240 pins
chips that can detect multiple bit errors and correct single bit errors in memory
Which characteristic describes DDR3 SDRAM? chips that run at clock speeds of 800 MHz and have a connector with 240 pins an individual memory chip that has dual rows of pins used to attach it to the motherboard a small circuit board that holds several memory chips and has a 30- or 72-pin configuration chips specifically designed for video graphics that are used in conjunction with a dedicated GPU
chips that run at clock speeds of 800 MHz and have a connector with 240 pins
Which component controls the communications and interactions between the CPU and other components on the motherboard? RAM BIOS CMOS chipset
chipset
What electrical unit refers to the number of electrons moving through a circuit per second? current voltage resistance power
current
Which memory technology allows two memory modules to be accessed at the same time? dual channel double-sided SRAM ECC
dual channel
Which security feature in modern CPUs protects memory areas that contain part of the operating system from malware attacks? encryption TPM execute disable bit LoJack
execute disable bit
Which three devices are considered output devices? (Choose three.) headphones keyboard fingerprint scanner monitor mouse printer
headphones monitor printer
What are two hardware requirements for computers that will be used to run multiple virtual machines? (Choose two.) large amounts of RAM a multicore CPU a high resolution video card a high speed wireless adapter multiple monitors
large amounts of RAM a multicore CPU
Which hardware upgrade would allow the processor in a gaming PC to provide the optimal gaming performance? a fast EIDE drive large amounts of fast RAM liquid cooling a high capacity external hard drive
large amounts of fast RAM
When a new PC is being built, which component has the most influence when selecting the case and power supply? video card sound card RAM module motherboard hard disk type
motherboard
Where can the input voltage selection be changed from 110 volts to 220 volts on a computer system? on the motherboard in the BIOS on the back of the power supply in the operating system control panel
on the back of the power supply
A technician looks at a motherboard and sees a 24-pin connector. What component would connect to the motherboard through the use of this 24-pin connector? power supply video card PATA optical drive SATA drive floppy drive
power supply
Which unit of measurement is used to indicate the hard drive speed? revolutions per minute gigabytes pages per minute clusters per minute
revolutions per minute
What three components should be included in a computer that is used to create TV commercials and music videos? (Choose three.) extra DIN-6 ports specialized video card extra PS/2 ports large and fast hard drives VGA adaptors specialized audio card
specialized video card large and fast hard drives specialized audio card
Which two storage devices use a magnetic medium for storing data? (Choose two.) tape drive solid state drive hard disk drive compact disk drive blue-ray disk drive
tape drive hard disk drive
Which two storage devices use a magnetic medium for storing data? (Choose two.) tape drive solid state drive hard disk drive blue-ray disk drive compact disk drive
tape drive and hard disk drive
What is indicated by the contrast ratio of a monitor? the difference in the intensity of light between the brightest white and darkest black that can be displayed how often the picture image is refreshed the total number of pixels that make up the picture the ratio of the horizontal and vertical viewing areas of the monitor
the difference in the intensity of light between the brightest white and darkest black that can be displayed
What are two factors that must be considered when choosing a computer case? (Choose two.) the size of the monitor the speed of the memory the number of internal drive locations the size of the motherboard and the power supply the number of LED indicators at the front of the case
the number of internal drive locations and the size of the motherboard and the power supply
Which two pieces of information are needed before selecting a power supply? (Choose two.) the total wattage of all components the voltage requirements of peripheral devices the form factor of the case the type of CPU the installed operating system
the total wattage of all components the form factor of the case
What characteristic of electricity is expressed in watts? the amount of work required to move electrons through a circuit the resistance to the flow of current in a circuit the amount of electrons flowing through a circuit per second the work required to move electrons through a circuit multiplied by the number of electrons flowing through a circuit per second
the work required to move electrons through a circuit multiplied by the number of electrons flowing through a circuit per second
What is the function of the power supply? to convert AC power into a lower voltage DC power to convert AC power into a higher voltage DC power to convert DC power into a lower voltage AC power to convert DC power into a higher voltage AC power
to convert AC power into a lower voltage DC power
Why is it important to ground both computers and network devices? to ensure that both the power supplied and the power used is in sync with the ground voltage to ensure that the power supply is limited to an output of 110V DC to provide a path of least resistance for stray current to facilitate the flow of current from the power supply to the computer case
to provide a path of least resistance for stray current
Which adapter would a technician install in a desktop computer to enable a video signal to be recorded from a video recorder to the computer hard drive? video adapter TV tuner card video capture card network interface card
video capture card
What three voltages are commonly provided by the power supply to the various components inside the computer? (Choose three.) 3.3 volts 5 volts 9 volts 12 volts 24 volts 48 volts
3.3 volts, 5 volts, and 12 volts
What type of connector can be used to connect an eSATA interface to an external SATA drive? 7-pin connector 9-pin connector 15-pin connector 5-pin connector
7-pin connector
Refer to the exhibit. Which type of video card expansion slot is depicted? PCIe ISA PCI AGP
AGP
A customer comes into a computer parts and service store. The customer is looking for a device to help when repairing an airplane and that will allow the customer to see and interact with the repair manual at the same time. What device should the store owner recommend to accomplish the required task? AR headset biometric scanner keyboard NFC device
AR headset
What is an active cooling solution for a PC? Reduce the speed of the CPU. Add a heatsink to the CPU. Add an additional case fan. Use a painted computer case
Add an additional case fan.
Which statement describes the proper use of an anti-static wrist strap? An anti-static wrist strap should not be used in conjunction with an antistatic mat. For optimum grounding, the clip should be attached to a painted section of the computer case. An anti-static wrist strap should make contact with the skin. The anti-static wrist strip should not be attached to any grounded object
An anti-static wrist strap should make contact with the skin.
A customer comes into a computer parts and service store. The customer is looking for a device to provide secure access to the central server room using a retinal scan. What device should the store owner recommend to accomplish the required task? biometric scanner keyboard NFC device flatbed scanner
Biometric scanner
Which component controls the communications and interactions between the CPU and other components on the motherboard? RAM BIOS CMOS chipset
Chipset
Which memory module has a front side bus speed of 200 MHz? DDR3-667 PC100 SDRAM DDR-400 DDR-333
DDR-400
A technician is building a thick client workstation that would be used to run a database and wants to ensure the best protection against errors. What type of memory would be best suited for this? ECC RDRAM DDR3 DDR2
ECC
A customer comes into a computer parts and service store. The customer is looking for a device to scan some old family photos into a laptop. What device should the store owner recommend to accomplish the required task? flatbed scanner joystick or gamepad projector magstripe reader
Flatbed scanner
Which type of interface was originally developed for high-definition televisions and is also popular to use with computers to connect audio and video devices? FireWire DVI HDMI USB VGA
HDMI
Hard drives in a grocery warehouse keep failing because of vibrations in the warehouse environment. What would be a possible solution for this high failure rate? Install an SSD drive in each computer. Install a more powerful power supply in each computer. Install an antistatic mat under each computer. Install each computer in a specialized high airflow case.
Install an SSD drive in each computer.
Which statement describes a characteristic of SRAM in a PC? It is used as main RAM in a PC. It has the highest power consumption. It is used for cache memory. It has a connector with 240 pins.
It is used for cache memory.
Which statement describes a characteristic of GDDR Synchronous Dynamic RAM? It is used in conjunction with a dedicated GPU. It processes massive amounts of data at the fastest speeds. It is used for main memory. It has a low power consumption and is used for cache memory.
It is used in conjunction with a dedicated GPU.
A customer comes into a computer parts and service store. The customer is looking for a device to train pilots how to land and take off in a computer simulation environment. What device should the store owner recommend to accomplish the required task? joystick or gamepad projector magstripe reader AR headset
Joystick or gamepad
A customer has a computer for a home business, but wants to have another computer as a web server. What would be the best solution for the customer to share the monitor, mouse, and keyboard between the two computers? access point KVM switch multipurpose device network switch USB hub
KVM switch
A customer comes into a computer parts and service store. The customer is looking for a device to manually input text for a new networking textbook that the customer is writing. What device should the store owner recommend to accomplish the required task? keyboard biometric scanner NFC device flatbed scanner
Keyboard
A customer comes into a computer parts and service store. The customer is looking for a device to allow secure access to the main doors of the company by swiping an ID card. What device should the store owner recommend to accomplish the required task? magstripe reader biometric scanner keyboard NFC device
Magstripe reader
A customer comes into a computer parts and service store. The customer is looking for a device to allow secure access to the main doors of the company by swiping an ID card. What device should the store owner recommend to accomplish the required task? magstripe reader joystick or gamepad projector AR headset
Magstripe reader
A customer comes into a computer parts and service store. The customer is looking for a device to allow users to tap and pay for their purchases. What device should the store owner recommend to accomplish the required task? NFC device joystick or gamepad projector magstripe reader
NFC device
A customer comes into a computer parts and service store. The customer is looking for a device to display a promotional presentation to a large audience at a conference. What device should the store owner recommend to accomplish the required task? projector joystick or gamepad magstripe reader AR headset
Projector
From which type of data storage does the CPU load information for processing during normal operation? SSD RAM ROM hard drive
RAM
What type of connector can be used to connect an internal hard drive to the motherboard? USB SATA eSATA Thunderbolt
SATA
Which type of memory is primarily used as cache memory? DRAM RAM ROM SRAM
SRAM
A customer comes into a computer parts and service store. The customer is looking for a device to help a person with accessibility issues input instructions into a laptop by using a pen. What device should the store owner recommend to accomplish the required task? stylus biometric scanner keyboard NFC device
Stylus
Which two factors must be considered when replacing old RAM modules in a PC? (Choose two.) The new RAM must be compatible with BIOS or UEFI. The new RAM must be compatible with the motherboard. The speed of the new RAM must be supported by the chipset. The power supply must provide the voltage that is requred by the new RAM. The new RAM must match the old RAM in terms of capacity and speed.
The new RAM must be compatible with the motherboard. The speed of the new RAM must be supported by the chipset.
Which two components usually interface directly with the Southbridge chipset on the motherboard? (Choose two.) video card USB ports RAM hard drive PCIe slots
USB ports and hard drive
Which type of device would be used on a laptop to verify the identity of a user? a MIDI device a biometric identification device a touch screen a digitizer
a biometric identification device
a chip that cannot be erased or rewritten and is now obsolete chips that run at clock speeds of 800 MHz and have a connector with 240 pins chips specifically designed for video graphics that are used in conjunction with a dedicated GPU chips that require constant power to function and are often used for cache memory
a chip that cannot be erased or rewritten and is now obsolete
Which characteristic describes EPROM? a chip that is nonvolatile and can be erased by exposing it to strong ultraviolet light SRAM that is internal and integrated into the CPU a smaller, more condensed memory module that provides random access data storage, ideal for use in laptops, printers, and other devices where conserving space is desirable a small circuit board that holds several memory chips and has a 30- or 72-pin configuration
a chip that is nonvolatile and can be erased by exposing it to strong ultraviolet light
Which characteristic describes EPROM? a chip that is nonvolatile and can be erased by exposing it to strong ultraviolet light chips that run at clock speeds of 800 MHz and have a connector with 240 pins chips specifically designed for video graphics that are used in conjunction with a dedicated GPU chips that require constant power to function and are often used for cache memory
a chip that is nonvolatile and can be erased by exposing it to strong ultraviolet light
Which characteristic describes a SIMM? a small circuit board that holds several memory chips and has a 30- or 72-pin configuration SRAM that is internal and integrated into the CPU a smaller, more condensed memory module that provides random access data storage, ideal for use in laptops, printers, and other devices where conserving space is desirable an individual memory chip that has dual rows of pins used to attach it to the motherboard
a small circuit board that holds several memory chips and has a 30- or 72-pin configuration
Which characteristic describes a SIMM? a small circuit board that holds several memory chips and has a 30- or 72-pin configuration chips that require constant power to function and are often used for cache memory chips that run at clock speeds of 800 MHz and have a connector with 240 pins chips whose contents can be "flashed" for deletion and are often used to store BIOS
a small circuit board that holds several memory chips and has a 30- or 72-pin configuration
Which two activities are normally controlled by the Northbridge part of the chipset? (Choose two.) communication between the CPU and the I/O ports access to the RAM communication between the CPU and the hard drive access to the video card communication between the CPU and the sound card
access to the RAM and access to the video card
Which two considerations would be of the greatest importance when building a workstation that will run multiple virtual machines? (Choose two.) amount of RAM number of CPU cores water cooling powerful video card high-end sound card
amount of RAM number of CPU cores
A user playing a game on a gaming PC with a standard EIDE 5400 RPM hard drive finds the performance unsatisfactory. Which hard drive upgrade would improve performance while providing more reliability and more energy efficiency? a 7200 RPM EIDE hard drive a 7200 RPM SATA hard drive a 10,000 RPM SATA hard drive an SSD
an SSD
