Data presentation

How many bits are in 1 byte?

• 4

• 8

• 16

• 32

What is the binary representation of the decimal number 5?

• 100

• 111

• 101

• 110

Which of the following is a hexadecimal number?

• 1010

• 1A3

• 1101

• 1001

How many bytes are in a kilobyte?

• 1024

• 512

• 100

• 2048

Which of these is NOT an example of abstraction?

• Using emojis to represent emotions

• A photo taken in high resolution

• A simplified subway map

• A video game character made of polygons

Which of the following is an example of digital data?

• A PDF file

• A cassette tape recording

• A painting on a canvas

• A vinyl record

Overflow errors happen when a number is too large for a system to handle

• True

• False

Roundoff errors occur because some numbers cannot be perfectly represented in binary.

• False

• True

The binary number 1011 represents the decimal number 12.

• Frue

• Tralse

Lossy compression reduces file size by permanently removing data, while ​ ​​ (a)   compression preserves all data.

• lossless
• privacy
• data
• binary
• benji