--- title: "Unit 2 – Data in AP Computer Science Principles - AP Computer Science Principles" description: "Review Unit 2 – Data in AP Computer Science Principles for AP Computer Science Principles with Fiveable study guides and practice resources." canonical: "https://fiveable.me/ap-comp-sci-p/unit-2" type: "unit" subject: "AP Computer Science Principles" unit: "Unit 2 – Data in AP Computer Science Principles" --- # Unit 2 – Data in AP Computer Science Principles - AP Computer Science Principles ## Overview Review Unit 2 – Data in AP Computer Science Principles for AP Computer Science Principles with Fiveable study guides and practice resources. ## Study Guides - [2.2 Data Compression](/ap-comp-sci-p/unit-2/data-compression/study-guide/21yLa92Ec2potY7nGQfu) - [2.4 Using Programs with Data](/ap-comp-sci-p/unit-2/using-programs-with-data/study-guide/UGafCp61FHKkWAvRBJbQ) - [2.3 Extracting Information from Data](/ap-comp-sci-p/unit-2/extracting-information-data/study-guide/EFuLgc6tL71cegDFjXRl) - [Big Idea 2 Overview: Data](/ap-comp-sci-p/unit-2/review/study-guide/YlNeQAM5snCDFEtp0CGd) - [2.1 Binary Numbers](/ap-comp-sci-p/unit-2/binary-numbers/study-guide/k2SYC0VlP2hcRfVUC75l) ## FAQs ### What topics are covered in AP CSP Unit 2? AP CSP Unit 2: Data covers 4 topics: Binary Numbers (2.1), Data Compression (2.2), Extracting Information from Data (2.3), and Using Programs with Data (2.4). You'll learn how computers store information in bits, how compression reduces file sizes, and how to analyze datasets with programs to draw real conclusions. See the full breakdown at [AP CSP Unit 2](/ap-comp-sci-p/unit-2). ### What's on the AP CSP Unit 2 progress check (MCQ and FRQ)? The AP CSP Unit 2 progress check includes MCQ and FRQ parts that draw directly from all 4 unit topics: Binary Numbers, Data Compression, Extracting Information from Data, and Using Programs with Data. MCQ questions test your ability to interpret binary values and compression trade-offs. FRQ prompts typically ask you to analyze a dataset or explain how a program processes data to find patterns. Practice with questions matched to these topics at [AP CSP Unit 2](/ap-comp-sci-p/unit-2). ### How do I practice AP CSP Unit 2 FRQs? AP CSP Unit 2 FRQs most often come from Extracting Information from Data (2.3) and Using Programs with Data (2.4), asking you to interpret a dataset, identify a trend, or explain what a program does with data. To practice, work through prompts that give you a table or chart and ask you to draw a conclusion or describe a computational solution. Focus on writing clear, specific explanations, not vague ones. Find practice FRQ prompts for this unit at [AP CSP Unit 2](/ap-comp-sci-p/unit-2). ### Where can I find AP CSP Unit 2 practice questions? For AP CSP Unit 2 practice questions, including multiple-choice and practice test sets, the best starting point is [AP CSP Unit 2](/ap-comp-sci-p/unit-2). You'll find MCQ questions covering Binary Numbers, Data Compression, Extracting Information from Data, and Using Programs with Data, organized by topic so you can target the areas where you need the most work. ### How should I study AP CSP Unit 2? Start AP CSP Unit 2 by building a solid grip on Binary Numbers (2.1), since everything else in the unit depends on understanding how bits represent data. Then work through Data Compression (2.2) by comparing lossless vs. lossy examples you already know, like ZIP files vs. JPEGs. For topics 2.3 and 2.4, practice reading data tables and tracing through simple programs that process datasets. Write out your reasoning in full sentences, because FRQ graders reward clear explanations over correct answers with no justification. Organize your study plan by topic at [AP CSP Unit 2](/ap-comp-sci-p/unit-2). ## Structured Data ```json {"@context":"https://schema.org","@type":"FAQPage","inLanguage":"en","mainEntity":[{"@type":"Question","@id":"https://fiveable.me/ap-comp-sci-p/unit-2#what-topics-are-covered-in-ap-csp-unit-2","name":"What topics are covered in AP CSP Unit 2?","acceptedAnswer":{"@type":"Answer","text":"AP CSP Unit 2: Data covers 4 topics: Binary Numbers (2.1), Data Compression (2.2), Extracting Information from Data (2.3), and Using Programs with Data (2.4). You'll learn how computers store information in bits, how compression reduces file sizes, and how to analyze datasets with programs to draw real conclusions. See the full breakdown at AP CSP Unit 2."}},{"@type":"Question","@id":"https://fiveable.me/ap-comp-sci-p/unit-2#whats-on-the-ap-csp-unit-2-progress-check-mcq-and-frq","name":"What's on the AP CSP Unit 2 progress check (MCQ and FRQ)?","acceptedAnswer":{"@type":"Answer","text":"The AP CSP Unit 2 progress check includes MCQ and FRQ parts that draw directly from all 4 unit topics: Binary Numbers, Data Compression, Extracting Information from Data, and Using Programs with Data. MCQ questions test your ability to interpret binary values and compression trade-offs. FRQ prompts typically ask you to analyze a dataset or explain how a program processes data to find patterns. Practice with questions matched to these topics at AP CSP Unit 2."}},{"@type":"Question","@id":"https://fiveable.me/ap-comp-sci-p/unit-2#how-do-i-practice-ap-csp-unit-2-frqs","name":"How do I practice AP CSP Unit 2 FRQs?","acceptedAnswer":{"@type":"Answer","text":"AP CSP Unit 2 FRQs most often come from Extracting Information from Data (2.3) and Using Programs with Data (2.4), asking you to interpret a dataset, identify a trend, or explain what a program does with data. To practice, work through prompts that give you a table or chart and ask you to draw a conclusion or describe a computational solution. Focus on writing clear, specific explanations, not vague ones. Find practice FRQ prompts for this unit at AP CSP Unit 2."}},{"@type":"Question","@id":"https://fiveable.me/ap-comp-sci-p/unit-2#where-can-i-find-ap-csp-unit-2-practice-questions","name":"Where can I find AP CSP Unit 2 practice questions?","acceptedAnswer":{"@type":"Answer","text":"For AP CSP Unit 2 practice questions, including multiple-choice and practice test sets, the best starting point is AP CSP Unit 2. You'll find MCQ questions covering Binary Numbers, Data Compression, Extracting Information from Data, and Using Programs with Data, organized by topic so you can target the areas where you need the most work."}},{"@type":"Question","@id":"https://fiveable.me/ap-comp-sci-p/unit-2#how-should-i-study-ap-csp-unit-2","name":"How should I study AP CSP Unit 2?","acceptedAnswer":{"@type":"Answer","text":"Start AP CSP Unit 2 by building a solid grip on Binary Numbers (2.1), since everything else in the unit depends on understanding how bits represent data. Then work through Data Compression (2.2) by comparing lossless vs. lossy examples you already know, like ZIP files vs. JPEGs. For topics 2.3 and 2.4, practice reading data tables and tracing through simple programs that process datasets. Write out your reasoning in full sentences, because FRQ graders reward clear explanations over correct answers with no justification. Organize your study plan by topic at AP CSP Unit 2."}}]} ```