Year 9 - Mastery

How many bits are in a byte?

Answer explanation

A byte consists of 8 bits. This is a standard unit of digital information storage, making the correct answer 8.

How many bits are in a nibble?

Answer explanation

A nibble consists of 4 bits. It is half of a byte, which contains 8 bits. Therefore, the correct answer is 4.

What is the largest number you can make with a byte?

Answer explanation

A byte consists of 8 bits, which can represent values from 0 to 255. However, the question asks for the largest number you can make with a byte, which is 255, not 0. The correct answer is 255.

What is the smallest number you can make with a byte?

Answer explanation

A byte consists of 8 bits, which can represent values from 0 to 255. The smallest number you can make with a byte is 0, as it is the minimum value in this range.

Select the incorrect fact about binary

• Binary is base 2

• Binary uses 1s and 0s to represent different values

• Computers only understand binary

• Binary is easier to understand than hexadecimal

In hexadecimal which value would you replace 10 with?

• 1

• A

• F

• 10

Match the correct value to their binary numbers

• 11

• 1111

• 15

• 0111

• 7

• 0001

• 1

• 1011

digital images are ​ (a)   of individual elements , arranged in a rectangular grid. These are called​ (b)   .

The number of these elements across time by the number high is called the ​ (c)  

• composed
• pixels
• resolution.
• time
• dots
• size
• quality

What would the resolution be in an image has 100 pixels high and 100 pixels wide?

What would the resolution be in an image has 10 pixels high and 70 pixels wide?