Computer Data and Graphics Quiz

Which is the smallest unit of data in a computer?

• Byte

• Bit

• Kilobyte

• Megabyte

How many bits are in 1 byte?

• 2

• 4

• 8

• 16

66 in decimal is equal to which binary value?

• 1010001

• 1000010

• 0100001

• 1110010

The ASCII value of the capital letter "A" is:

• 64

• 65

• 66

• 67

Which of the following correctly represents "BOAT" in ASCII (decimal)?

• 66, 79, 65, 84

• 65, 66, 79, 84

• 66, 65, 84, 79

• 79, 66, 84, 65

Colour depth refers to:

• The number of pixels in an image

• The number of bits used to store color

• The size of the file

• The resolution of the screen

With 8-bit color depth, how many colors are possible?

• 128

• 64

• 256

• 512

Which formula is used to calculate the image file size?

• File size = (Width × Height × Colour depth) ÷ 8

• File size = Width × Height

• File size = Pixels × 8

• File size = Resolution ÷ 2

Bandwidth is measured in:

• Bytes per second

• Bits per second

• Kilograms per second

• Hertz

A higher bandwidth means:

• Faster data transfer

• Slower transfer

• No effect

• Smaller file