AP CSP Unit 1 Review (code.org)

Lisa takes a picture with her smartphone which she subsequently posts online. Allen finds the picture online and posts a copy of it on his website with an attached Creative Commons license. Which of the following best describes who owns the photo?

• Allen owns the photo because only holders of a Creative Commons license can own works online.

• Lisa owns the photo because she was the original creator and did not license the work.

• Lisa owns the photo because it was granted a Creative Commons license by another person online.

• Both own the photo because creating a copy makes it her intellectual property.

Which of the following best describes how computing devices represent information?

• A computer will either represent information as bits or bytes but not both

• A computer represents data as a byte which is either a 0 or a 1

• A computer represents data as bits which is either a 0 or a 1

• A computer represents information as bits which contain 8 bytes.

A Binary number has a base of _____?

• 1
• 2
• 4
• 10
• 16

Convert from Decimal to Binary: 13

• 1101
• 1011
• 1001
• 1110
• 101001

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

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

How many numbers can be represented with an 8-bit binary system?

• 255

• 256

• 128

• 127

There are 58 students in your class. How many bits are needed to count all the students in your class?

• 4
• 5
• 6
• 7
• 8

Convert from Binary to Decimal: 000101

• 4
• 5
• 6
• 7

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