AP CSP UNITS 1-2 (Digital Information & Internet) REVIEW

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

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

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

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

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

• A
• B
• C
• D
• E

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

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

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 is true of how computers represent numbers?

• With a fixed number of bits some numbers are too large to represent in a computer which will lead to overflow errors.

• Using a fixed but large number of bits can eliminate the possibility of round off error when representing numbers in binary

• Using a fixed but large number of bits, for example 128, eliminates the possibility of overflow errors.

• With a large but fixed number of bits it is possible to eliminate either round-off errors or overflow errors, but not both.

A work or invention that is the result of creativity, such as a piece of writing or a design, to which one has rights and for which one may apply for a patent, copyright, trademark, etc.

• Creative Commons

• Digital Data

• Intellectual Property

• Sampling

Data that changes discretely through a finite set of possible values

• Digital Data

• Analog Data

• Sampling

• Lossless Compression