CAT G11 Module 2 AMA Quiz

What type of device is shown in the image?

• VR controller

• App

• Barcode reader

• Game controller

Select one advantage of using a barcode scanner over a cashier typing in a code manually at a point of sale system.

• • It automatically processes the electronic fund transfer (EFT) for the customer.

• It improves data integrity by reducing the likelihood of typing errors.

• • It eliminates the need for the store to perform regular stocktakes.

  • o

• It is a cheaper hardware alternative to using a standard QWERTY keyboard.

Which option is NOT a virtual reality controller?

• Head tracking

• Eye tracking

• Motion tracking

• Emotion tracking

Data ________ devices use sensors and other built-in technology to gather data for computing systems.

What do device drivers do?

• Allows the OS to communicate with hardware

• Drives around the motherboard

• Increases the amount of storage

Explain the difference between a monitor’s resolution and aspect ratio. Select the best answer.

• Resolution is about the quality of the display. Aspect ratio is the size of the content that can be displayed.

• Aspect ratio refers to the number of pixels, while resolution refers to the physical size of the monitor in inches.

• The monitor with 3840 x 2160 has a different aspect ratio than the 1920 x 1080 monitor.

• Resolution determines how fast the screen updates (Hz), while aspect ratio determines the number of colors the screen can show.

The monthly duty cycle of laser printers is much bigger than that of inkjet printers. Explain what a monthly duty cycle is. Select the best answer.

• The range of colours a printer can produce, such as cyan, magenta and yellow.

• The quality of the printer which is measured in dots per inch (dpi)

• The maximum number of pages that can be printed in a month without the printer failing

Spot the error in the image.

• The monitor is slightly above eye level.

• The person is sitting with their back against the chair support.

• The person's feet are not flat on the floor.

• The person is not using a mouse to interact with the computer.

A school lab keeps losing motherboards due to lightning. Which device do they need:

• UPS

• Surge Protector

• Cable Lock