UniGeniusComputer Science Principles Exam Prep

The course

1
Start here
Section I: 70 multiple-choice questions in 120 minutes, 70% of the score. The Create performance task and the written response (30%) are not covered.
Free: A tour of the course and the exam Free: Reading exam pseudocode: the reference sheet
2
Big Idea 1: Creative Development
10-13% of the multiple-choice section, about 8 of the 70 questions
Free: Collaboration, program purpose and design Finding and fixing errors 15 questions
3
Big Idea 2: Data
17-22% of the multiple-choice section, about 14 of the 70 questions
Binary numbers, bits and overflow Lossless and lossy compression Extracting information from data 27 questions
4
Big Idea 3: Algorithms and Programming
30-35% of the multiple-choice section, about 23 of the 70 questions
Free: Variables, expressions and strings Boolean logic and conditionals Iteration and developing algorithms Lists, traversals and binary search Procedures, parameters and libraries Random values and simulations Efficiency, heuristics and undecidable problems 52 questions
5
Big Idea 4: Computer Systems and Networks
11-15% of the multiple-choice section, about 9 of the 70 questions
The Internet, protocols and fault tolerance Sequential, parallel and distributed computing 17 questions
6
Big Idea 5: Impact of Computing
21-26% of the multiple-choice section, about 16 of the 70 questions
Effects of computing, the digital divide and bias Crowdsourcing, legal and ethical concerns Safe computing: privacy, security and encryption 29 questions