AP CSP Exam Questions

AP CSP Exam Questions Which of the following is not a common number system utilized in the representation of data? A) Base 32 B) Base 10 C) Base 2 D) Base 16 - Base 32 Convert 24base8 to decimal - 20 Which base(s) can't be used for 18? I. Base 10 2. Base 2 3. Base 8 4. Base 16 - Base 8 Convert RGB values of (0, 255, 213) to hexadecimal - #00FFD5 What is the largest number? 100 (decimal), 7B (hexadecimal), 1011010 (binary)? - 7B How can we easily eliminate a multiple choice function that seems to be doing something? - Look for variables in the code that are changing, if you see a change in a necessary variable, you can eliminate that answer. When is a heuristic algorithm most practical? - When a problem cannot be solved in a reasonable time but an approximate solution will suffice. How many more values can be represented with 64 bit hardware instead of 32 bit hardware? - 2^32 times as many values can be represented How can we effectively switch variables in an already created program? - Use a substitute to keep track of what variables are which. How does code execute? - Always in order from top down. What is a limitation of using a simulation instead of a real world event? - Computer simulations usually make simplifying assumptions about the real-world object or the system being modeled. What do digital certificates do in a web browser? - Digital certificates verify the ownership of encrypted keys used in secured communication. Based on data in a table, how can you tell what thing will increase the most if another column was added to it? - Look at the differences in each column of data, where you see the largest increase will likely be the largest number in the final part. Can be verified mathematically through the slope equation. Is base 32 used in computing? - No What is the relationship of reading and updating big data with respect to the storage of each? - Updating data takes up more storage than reading data. If given data you need to analyze, what type of software would you not use? - Webpage software What is the best type of software to use for coding a game? Block or text code? - Either coding strategy works because they both have the same functionality. So it depends on the needs of the programmer. How is the correctness of an algorithm determined? - Reasoning formally or mathematically What is the term for transforming data into knowledge? - Information Alchemy The content of a document is metadata (T/F)? - False