Why This Cheat Sheet Matters for DATAPLUS
This cheat sheet covers the most important Data Analytics concepts tested on the DATAPLUS (Data+) certification exam. It contains 1 sections with 6 key points. Use this as a quick-reference guide during your final review sessions.
1Sections
6Key Points
Key Concepts
- OLTP: Online Transaction Processing (fast writes, normalized). Examples: order processing, banking.
- OLAP: Online Analytical Processing (fast reads, denormalized). Examples: data warehouses, BI.
- ETL: Extract (from sources) → Transform (clean, map) → Load (into target).
- Star schema: fact table surrounded by dimension tables. Simple, fast queries.
- Data Lake: raw data in native format (structured + unstructured). Schema-on-read.
- Data Warehouse: structured, processed data. Schema-on-write. Optimized for analytics.
Practice Data Analytics Questions
Put your knowledge to the test with practice questions.
CompTIA Acronym Quick Reference
CompTIA exams are packed with acronyms — memorising key acronyms and their meanings is critical. Each exam has an official list of acronyms in the exam objectives document. Focus on acronyms that appear across multiple domains, as these represent the most frequently tested concepts. Our flashcard decks are designed to drill these acronyms efficiently.