WorksheetsITS 101 1-4 Review
Total questions: 40
Worksheet time: 40mins
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
keyboard
NFC Device
biometric scanner
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
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
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?
joystick of gamepad
flatbed scanner
projector
magstripe reader
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
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
Which characteristic describes ROM?
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
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
SATA drive
floppy drive
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
Which two components usually interface directly with the Southbridge chipset on the motherboard? (Choose two.)
video card
USB ports
RAM
hard drive
PCIe slots
(CHAPTER 2)
What is a possible hardware upgrade that can be used to add more storage space to a modern smartphone?
Compact Flash
USB flash drive
microSD
hard disk
A technician is being asked to move a heavy industrial printer. Which safety technique is recommended for this situation?
Use a pulley
remove paper and all sources of ink before moving
bend at the knees when lifting
wear safety goggles.
What should a technician do before working on a computer?
Remove any watch and jewelry
Check the surrounding area for trip hazards
Ensure that the computer is free of viruses
Remove all cables except the power cable
What are two reasons someone might upgrade a NIC? (Choose two.)
to increase bandwidth
to implement a RAID
to import videos
to have a higher sample rate
to have wireless connectivity
What should be done prior to the installation of RAM onto the motherboard?
Consult the motherboard documentation or website of the manufacturer to ensure that the RAM is compatible with the motherboard.
Change the voltage selector to meet with the voltage specification of the RAM.
Populate the center memory slots first before inserting the new RAM.
Ensure the memory expansion slot tabs are in the locked position before inserting the RAM module.
Which two pieces of information are needed before selecting a power supply? (Choose two.)
the voltage requirements of peripheral devices
the installed operating system
the form factor of the case
the total wattage of all components
the type of CPU
The following parts were ordered by someone building a personal computer:
1 – AMD 3.7 GHz
2 – Gigawhiz GA-A239VM (does not include USB 3.1 front panel connectors
)3 – HorseAir DDR3 8 GB
4 – ATX with up to three 3.5″ drive bays
5 – Eastern Divide 1TB 7200 RPM
6 – Zoltz 550W
RAM speed
output power
input power
motherboard speed
Which SATA internal hard drive form factor is most often used in a tower computer?
3.5 inch (8.9 cm)
2.25 inch (5.7 cm)
2.5 inch (6.4 cm)
5.25 inch (13.3 cm)
How is a power supply commonly attached to a tower case?
restraining strap
retention bar
screws
standoffs
What is used to prevent the motherboard from touching metal portions of the computer case?
an I/O shield
thermal compound
standoffs
ZIF sockets
(CHAPTER 3)
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
A technician has just finished assembling a new computer. When the computer is powered up for the first time, the POST discovers a problem. How does the POST indicate the error?
It issues a number of short beeps.
The LED on the front of the computer case flashes a number of times.
It places an error message in the BIOS.
It locks the keyboard.
What is a function of the BIOS?
enables a computer to connect to a network
provides temporary data storage for the CPU
performs a check on all internal components
provides graphic capabilities for games and applications
How does an inline UPS protect computer equipment against electrical power brownouts and blackouts?
by grounding excess electrical voltage
by using a battery to supply a constant level of voltage
by switching from main power to a standby power source
by stopping the flow of voltage to the computer
Which condition refers to a reduced voltage level of AC power that lasts for an extended period of time?
brownout
sag
spike
surge
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
VGA
What are two reasons for installing a second hard disk drive inside an existing computer? (Choose two.)
to support a RAID array
to store BIOS configuration settings
to store the system swap file
to increase CPU speed
to allow access to a secondary display output
What makes CRT monitor disposal dangerous for a technician who is handling the disposal?
potential breathing hazards
potential explosive materials
potential residual high voltage
potential health-damaging chemicals
What data is stored in the CMOS memory chip?
BIOS settings
windows config settings
user login information
device driver
(CHAPTER 4)
A user reports that every morning when a particular computer is turned on, the configuration settings on that computer have to be reset. What action should be taken to remedy this situation?
Replace the motherboard.
Replace the CMOS battery.
Move the jumpers.
Upgrade the BIOS.
A web designer installed the latest video editing software and now notices that when the application loads, it responds slowly. Also the hard disk LED is constantly flashing when the application is in use. What is a solution to solve the performance problem?
replacing the hard disk with a faster model
upgrading to a faster CPU
replacing the video card with a model that has a DVI output
adding more RAM
An employee reports that each time a workstation is started it locks up after about 5 minutes of use. What is the most likely cause of the problem?
The hard disk is failing.
The RAM is malfunctioning.
The CPU is overheating.
The power supply fails to provide adequate voltage and current.
A technician is troubleshooting a 4-year-old computer that takes a long time to boot, and identifies that the BIOS rediscovers all the hardware at every boot. What action would fix this problem?
Replace the CMOS battery.
Launch Device Manager to discover new hardware.
Reset the BIOS using the CMOS jumper.
Start the computer with the last known good configuration.
A user has noticed that the hard drive LED on the front of the computer has stopped working. However, the computer seems to be functioning normally. What is the most likely cause of the problem?
The hard drive data cable is malfunctioning.
The motherboard BIOS needs to be updated.
The hard drive LED cable has come loose from the motherboard.
The power supply is not providing enough voltage to the motherboard.
During the troubleshooting of a PC that will not boot, it is suspected that the problem is with the RAM modules. The RAM modules are removed and put into another PC, which successfully powers on. The RAM modules are then put back into the original PC and it now successfully powers on as well. What was the most likely cause of the problem?
The RAM modules have bad blocks.
The RAM modules were not seated firmly.
The RAM modules did not match the PC specs.
The RAM modules were inserted backwards into the DIMM slots.
What component is most suspect if a burning electronics smell is evident?
CPU
hard drive
RAM module
power supply
What should a technician do before beginning any troubleshooting steps on a customer computer?
Perform a data backup.
Identify the problem.
Document the findings.
Establish a plan of action.
After consulting the manufacturer manuals, a technician applies a series of recommended solutions that resolve a problem with a workstation computer. What is the next step in the troubleshooting process that the technician should perform?
Verify the solution and confirm full system functionality.
Document the findings, actions, and outcomes.
Test the theory of probable cause.
Determine the next steps to resolve the problem.
A customer asks for a solution to a printer problem that is beyond the knowledge level of the technician. What should the technician do?
Try to fix the problem anyway.
Tell the customer to call the printer manufacturer to fix the problem.
Gather as much information as possible and escalate the problem.
Ask the customer to call again when another technician can provide a solution to the problem.
What is the purpose of documenting the information that is obtained from the customer in the work order?
to create a centralized database of possible problems
to use the information for marketing purposes
to keep track of parts that are ordered
to use the information to aid in solving the problem
