AP CSP Unit 1 Review (code.org)

A Binary number has a base of _____?

• 1
• 2
• 4
• 10
• 16

Convert from Binary to Decimal: 000101

• 4
• 5
• 6
• 7

Convert from Decimal to Binary: 13

• 1101
• 1011
• 1001
• 1110
• 101001

What is the smallest unit of information in a computer?

• Nano
• Hertz
• Bit
• Byte

What is the Binary error that occurs when a number is too large?

• Numbers are never too large
• Counting Error
• NaN Error
• Overflow Error

What is the Binary error that occurs when a number is too Precise?

• Decimal Error
• Round-Off Error
• Counting Error
• Precision Error

Using the Image, what character is represented by the number 68?

• A
• B
• C
• D
• E

What is abstraction?

• Making a photo smaller but more pixelated
• Hiding the complexity with something simpler

You are trying to represent a photo with a digital image, but the image is not clear. What should you do?

• Decrease the Sample Size
• Increase the Sample Size
• Increase the Canvas Size
• Decrease the Canvas Size

Which form of comression would you use to save data when you transmit text messages and you don't want to lose information?

• Lossless Compression
• Lossy Compression
• Reversible Encryption
• Compression Encryption