AP CSP Practice Test Binary Data

Big Idea 2 Practice Test - Part 1

Binary & Data Representation

25 Multiple-Choice Questions

⏱ 30 minutes recommended 📊 25 questions 🎯 Big Idea 2 Focus

Test Instructions

  • This test focuses on Big Idea 2: Binary representation, overflow errors, compression, and data encoding
  • Select one answer for each question
  • You can change your answers before submitting
  • Click "Submit Test" when finished to see your score and explanations
  • For AP exam practice, try to complete the test in 30 minutes
Question 1
A developer is building software to process large datasets. Which factor is LEAST likely to affect the program's ability to handle larger data volumes?
Question 2
A computer uses 3 bits to represent integers. When adding 5 and 3, the system displays 0 as the result. What BEST explains this?
Question 3
A programming language uses 4-bit sequences to store nonnegative integers. What happens when attempting to add 14 and 15?
Question 4
Which statement describes an advantage of lossless compression over lossy compression?
Question 5
An online store currently uses 6-bit codes to identify products. Switching to 7-bit codes would allow identification of how many additional products?
Question 6
ASCII uses decimal 71 to represent 'G'. If hexadecimal 56 represents a character, what is that character?
Question 7
A video archive wants to preserve full-quality videos for future use. Which action is LEAST likely to support this goal?
Question 8
How many unique values can be represented using a 5-bit unsigned integer system?
Question 9
A student records audio and saves it to their computer. The saved file has lower quality than the original. What type of compression was likely used?
Question 10
Binary 1001010 represents which ASCII character? (Note: A=65, B=66, etc.)
Question 11
A program performs 7.5 × 2.5 and displays 18.75. Which explanation is BEST?
Question 12
Which scenario would result in an overflow error with a 4-bit unsigned integer system?
Question 13
A compression algorithm reduces a 10MB file to 8MB without losing any data. This is an example of:
Question 14
What is the decimal equivalent of hexadecimal 2F?
Question 15
A music streaming app compresses audio files for faster streaming. Users notice slightly reduced quality. This compression is:
Question 16
Which binary value equals decimal 19?
Question 17
A system stores color data using 8 bits per pixel. How many different colors can be represented?
Question 18
Which statement about compression is correct?
Question 19
Converting decimal 25 to binary results in:
Question 20
A 2-bit system can represent how many unique values?
Question 21
JPEGcompression for photos is an example of:
Question 22
What is the maximum value that can be stored in 3 bits using unsigned integers?
Question 23
Which file format uses lossless compression?
Question 24
Binary 11111111 equals which decimal value?
Question 25
When should lossy compression be used instead of lossless?
--

out of 25

--

Answer Review

← Back to All Tests Test 2.2: Data Analysis →

Get in Touch

Whether you're a student, parent, or teacher — I'd love to hear from you.

Just want free AP CS resources?

Enter your email below and check the subscribe box — no message needed. Students get daily practice questions and study tips. Teachers get curriculum resources and teaching strategies.

Typically responds within 24 hours
✓

Message Sent!

Thanks for reaching out. I'll get back to you within 24 hours.

🏫 Welcome, fellow educator!

I offer curriculum resources, practice materials, and study guides designed for AP CS teachers. Let me know what you're looking for — whether it's classroom materials, a guest speaker, or Teachers Pay Teachers resources.

✉

Email

tanner@apcsexamprep.com

📚

Courses

AP CSA, CSP, & Cybersecurity

⏱

Response Time

Within 24 hours

Prefer email? Reach me directly at tanner@apcsexamprep.com