AP CSP Finals

Below is my score on the Trimester 1 AP CSP Finals.

This was the question that I got wrong:

• Why I chose the answer: I confused WWW with HTTP. HTTP is a protocol, but WWW is not.

• Correct answer: The correct answer is that WWW is an information system that consists of linked pages, programs, and files. The Internet is a network that can access the World Wide Web.

  Reviewing the 4.1 Daily Video 2, I reviewed that the Internet helps connect the computer networks, while WWW is the “network of linked data and programs, running over the Internet”. WWW uses the protocol HTTP.

There were also a few questions that I got correct, but I did not fully understand them. Looking at the solutions, my train of thought was about the same as the explanations, but I will include them below for future reference and review.

• My reasoning: I know that four bits in binary is equivalent to 2^4 = 16 values. Since there were 8 directions, I just assumed that each direction would be stored as a value.

• My reasoning: I knew from before that binary was the fundamental bits that could store information (0s and 1s). However, I just think it is really interesting that all data can be stored in binary, from strings to colors to audio.

• Note: This one I had no idea, so I guessed on the answer that sounded most correct.

• What I learned: Analog data changes continuously, while digital is discrete. Therefore, digital data would be sampled at regular intervals (not continuous) to approximate the runner’s position.