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Data Science Essentials Practice Exam

Test yourself under real exam conditions: 50 timed questions, 60 on the clock, pass mark 70%%. Instant score with a full review of everything you got wrong. Free — no account needed.

📝 50 questions · ⏱ 60 minutes · 🎯 Pass mark 70% · 🆓 Free, no signup

Exam details

  • 50 questions drawn from 234 cards
  • Countdown timer — auto-submits when time runs out
  • Pass mark 70% (real certification threshold)
  • Full review of wrong answers at the end
  • No signup required — save your score with a free account

Sample Questions

5 shown

What is data science?

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An interdisciplinary field using statistics, programming, and domain knowledge to extract insights from data.

What is the data science process?

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Problem definition → data collection → cleaning → exploration → modeling → evaluation → deployment.

What is CRISP-DM?

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Cross-Industry Standard Process for Data Mining — a structured methodology.

What is a dataset?

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A collection of related data, typically organized in rows and columns.

What is a feature?

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A measurable property or characteristic used as input to a model.

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