CompTIA Data+ validates the data-analytics skills to mine, analyse, visualise, and govern data so it drives business decisions. It is an ideal early-career analytics credential.
Timed, exam-style DA0-002 questions in a real simulator
Coverage weighted to the official exam objectives
Learn why the right answer is right — and the others aren't
Real exam-style DA0-002 questions — tap "Show answer" to see the explanation.
B. Line chart — A line chart is the best choice for showing a continuous trend over time. Pie charts show proportion at a point in time, not change over time.
B. Data cleansing — Cleansing (a data-mining/preparation activity) removes duplicates, fixes formatting, and handles missing values so downstream analysis is reliable.
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The complete CompTIA Data+ question bank to walk into DA0-002 ready.
Question coverage follows the official CompTIA Data+ exam objectives and their weighting.
Data types, structures, schemas, and the systems data lives in.
Acquiring, integrating, cleaning, and profiling data for analysis.
Descriptive statistics, analytic techniques, and interpreting results.
Choosing the right chart, building dashboards, and communicating insight.
Governance, data quality, master data management, and controls.
Yes. Data+ is vendor-neutral and focuses on practical analytics skills, making it a strong, recognised credential for breaking into data-analyst roles.
Data+ is tool-agnostic — it tests analytics concepts and judgment rather than a specific language, though SQL and spreadsheet familiarity help.