Which characteristic describes ECC memory?
  • 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.
A customer comes into a computer part and service store. The customer is looking for a device to train pilots on 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
A customer comes into a computer part 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
A customer comes into a computer part 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?
  • projector

A customer comes into a computer part 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
A customer comes into a computer part 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
A customer comes into a computer part 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?
  • magstripe reader
A customer comes into a computer part 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
A customer comes into a computer part and service store. The customer is looking for a device to help when repairing an airplane 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
A customer comes into a computer part 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

A customer comes into a computer part 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
What is a good safety precaution to take when opening a computer case?
  • Place tape over the case edges that are sharp.
What are three important considerations when installing a CPU on a motherboard? (Choose three.)
  • The CPU is correctly aligned and placed in the socket.
  • Antistatic precautions are taken.
  • The CPU heat sink and fan assembly are correctly installed.
What does the “A” in P-A-S-S remind a person to do while using a fire extinguisher?
  • Aim the fire extinguisher at the base of the fire.