AQA A-Level Computer Science Paper 2 topic revision

What base is the binary number system?

• 10
• 2
• 8
• 16
• 1

Using a single symbol how many possible values can you represent in the binary number system?

• 1
• 10
• 2
• 8
• 16

Using a single symbol how many possible values can you represent in the hexadecimal number system?

• 1
• 10
• 2
• 8
• 16

What base is the hexadecimal number system?

• 10
• 2
• 8
• 16
• 1

What is a signed integer?

• An integer that can be a either a negative or positive number

• An integer that is converted into binary

• An integer that can be processed by the CPU

What is -6 in binary converted using two's complement?

• 1010

• 1011

• 0010

What is the most significant bit?

• Leftmost bit

• Rightmost bit

What is the result of this binary addition: 0110 + 0101 ?

• 1011

• 1111

• 0111

Metadata doesn't contain the following:

• File name.
• Print dimensions.
• Colour depth.
• Camera settings for when the picture was taken.

A common type of image metadata is called:

• EXIF
• MP3
• TIFF
• GIF