2.3.1 Data storage & compression Data Sizes and Binary Concepts

How many bits are there in a byte?

• 2

• 4

• 8

• 16

What is the correct definition of a nibble?

• 2 bits

• 4 bits

• 8 bits

• 16 bits

Which of the following is the correct order of binary multiples from smallest to largest?

• Byte, nibble, bit, kibibyte

• Bit, nibble, byte, kibibyte

• Kibibyte, byte, nibble, bit

• Bit, byte, nibble, mebibyte

How many bytes are in one kibibyte (KiB)?

• 1,000

• 1,024

• 2,048

• 1,048,576

What is the size of a file in bytes if it is 3 MiB (mebibytes)?

• 3,000,000 bytes

• 3,145,728 bytes

• 3,276,800 bytes

• 3,072,000 bytes

Which of the following represents the largest data size?

• 1 gibibyte (GiB)

• 1 tebibyte (TiB)

• 1 mebibyte (MiB)

• 1 kibibyte (KiB)

If a video file is 2 GiB in size, how many MiB is that?

• 1,024 MiB

• 2,048 MiB

• 512 MiB

• 4,096 MiB

How many bits are in one gibibyte (GiB)?

• 8,589,934,592 bits

• 1,073,741,824 bits

• 8,192 bits

• 1,024,000,000 bits

You have an image that is 4,096 pixels wide and 2,304 pixels tall. If each pixel is stored using 3 bytes, what is the size of the image in bytes?

• 2,359,296 bytes

• 28,311,552 bytes

• 12,288,000 bytes

• 28,311,296 bytes

A text file contains 100,000 characters. If each character is stored using 8 bits, what is the size of the text file in bytes?

• 100,000 bytes

• 800,000 bytes

• 12,500 bytes

• 200,000 bytes