डेटा साइंस और डेटा एनालिटिक्स में एल्गोरिद्म में क्या अंतर है?

डेटा साइंस अक्सर AI/ML model building और complex prediction के लिए Deep Learning/Ensemble algorithms का उपयोग करता है। डेटा एनालिटिक्स का फोकस business insights, reporting और predictive analytics (regression, ARIMA) पर होता है। दोनों में overlap है पर उद्देश्य अलग होता है।

Supervised और Unsupervised learning कब उपयोग करें?

अगर आपके पास labelled data है (target variable) तो Supervised methods (जैसे Regression, Decision Trees) use करें। अगर labels नहीं हैं और आप patterns/segments खोज रहे हैं तो Unsupervised methods (जैसे K-Means, PCA) बेहतर हैं।

Predictive Analytics के लिए सबसे अच्छा एल्गोरिद्म कौन सा है?

यह डेटा और समस्या पर निर्भर करता है। Time-series forecast के लिए ARIMA/Prophet बढ़िया हैं; structured tabular data पर Random Forest और Gradient Boosting (XGBoost/LightGBM/CatBoost) अक्सर top performers होते हैं।

Deep Learning कब ज़रूरी है?

जब आपके पास बहुत बड़ा और complex data हो — images, audio, text या sequence data — तब CNN, RNN/LSTM या Transformers use करना meaningful होता है। छोटा structured data के लिए classical ML ज्यादा efficient रहता है।

Ensemble methods क्यों use करते हैं?

Ensemble (Bagging/Boosting/Stacking) models कई weak learners combine कर accuracy और robustness बढ़ाते हैं — खासकर noisy real-world data में। उदाहरण: XGBoost अक्सर competitions और business problems में top आता है।

क्या मैं Data Analytics सीखकर Data Science roles पा सकता हूँ?

हाँ — Data Analytics से foundational stats, SQL, visualization और basic ML skills मिलते हैं। अगर आप advanced ML/deep learning सीखते हैं तो Data Scientist roles के लिए भी qualify कर सकते हैं।

Master Power BI DAX — 100 Quiz Questions with Answers

Table of Contents

Beginner → Expert • Bite-sized quizzes • Visual progress bar • Detailed solutions. Practice for interviews, dashboards, and real-world analytics.

Start Part 1 — Beginner View Answer Key

Updated 2025
Curated by Vista Academy Instructors
100 questions — 4 parts

Why this DAX Quiz helps you win

This quiz set is designed for fast learning and real outcomes — interview readiness, project skills, and production-ready DAX thinking. Each question block is short, focused and followed by clear explanations so you learn the underlying logic, not just memorize formulas.

📌 Interview-ready — Practice common DAX questions asked by recruiters.

📊 Project-ready — Build measures and logic used in real Power BI dashboards.

⏳ Time-efficient — Do 5–10 questions during a coffee break and track growth.

🎯 Skill reinforcement — Bite-sized quizzes reduce forgetting and build mastery.

How the quiz is organised (clear learning pathway)

100 Power BI DAX questions are broken into 4 levels so your practice grows step by step.

Beginner (25 Qs)

SUM, AVERAGE, COUNT, column vs measure, simple FILTERs

Intermediate (25 Qs)

CALCULATE, RELATED, DISTINCT, EARLIER, context basics

Advanced (25 Qs)

Time intelligence, iterators, nested CALCULATE

Expert (25 Qs)

CALCULATETABLE, RANKX, advanced filter contexts

Progress bar tracking

A dynamic progress bar updates as you complete each part. Track progress visually and stay motivated.

Start the Quiz

Yogesh Pandey — Data Analytics Trainer, Vista Academy

Instructor with 5+ years building production Power BI solutions. Questions curated from real classroom exercises and hiring patterns.

Part 1 — Beginner (One-by-one)

Answer each question and click Next. At the end, submit to view your score and the full answers with explanations.

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1 / 25

Part 2 — Intermediate (One-by-one)

25 intermediate DAX questions: CALCULATE patterns, RELATED, EARLIER, EARLIER alternatives, DISTINCT, USERELATIONSHIP and more.

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1 / 25

Part 3 — Advanced (One-by-one)

25 advanced DAX questions: time intelligence, context manipulation, CALCULATETABLE, iterators, variables and performance-aware patterns.

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1 / 25

Part 4 — Expert (One-by-one)

25 expert-level DAX questions: CALCULATETABLE patterns, advanced filter contexts, RANKX tie-breakers, performance patterns, and real-world case problems.

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1 / 25

All Answers & Results — Parts 1 to 4

Your combined score, per-part breakdown, and full answer explanations for all 100 questions. Download or print for revision.

Overall Score: — / 100 (–%)

Part breakdown will appear here after you submit each part.

Completed Parts

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Master Power BI DAX — 100 Quiz Questions with Answers

Beginner → Expert • Bite-sized quizzes • Visual progress bar • Detailed solutions. Practice for interviews, dashboards, and real-world analytics.

Start Part 1 — Beginner View Answer Key

Updated 2025
Curated by Vista Academy Instructors
100 questions — 4 parts

Why this DAX Quiz helps you win

📌 Interview-ready — Practice common DAX questions asked by recruiters.

📊 Project-ready — Build measures and logic used in real Power BI dashboards.

⏳ Time-efficient — Do 5–10 questions during a coffee break and track growth.

🎯 Skill reinforcement — Bite-sized quizzes reduce forgetting and build mastery.

How the quiz is organised (clear learning pathway)

100 Power BI DAX questions are broken into 4 levels so your practice grows step by step.

Beginner (25 Qs)

SUM, AVERAGE, COUNT, column vs measure, simple FILTERs

Intermediate (25 Qs)

CALCULATE, RELATED, DISTINCT, EARLIER, context basics

Advanced (25 Qs)

Time intelligence, iterators, nested CALCULATE

Expert (25 Qs)

CALCULATETABLE, RANKX, advanced filter contexts

Progress bar tracking

A dynamic progress bar updates as you complete each part. Track progress visually and stay motivated.

Start the Quiz

Yogesh Pandey — Data Analytics Trainer, Vista Academy

Instructor with 5+ years building production Power BI solutions. Questions curated from real classroom exercises and hiring patterns.

Conclusion & Related Practice Quizzes

Great work completing the Power BI DAX quiz series. To broaden your data skills, practise these complementary quizzes on Excel, SQL and Power Query — curated by Vista Academy to strengthen your analytics workflow.

Excel: Data Cleaning (Functions & Examples) SQL: Commands for Data Cleaning SQL MCQ for Business Analyst Excel Power Query Quiz for Data Analytics

Tip: Add these links to the bottom of your quiz page as “Further practice” to keep users engaged and improve internal linking for SEO.

Want these links styled as flip-cards or integrated into the sidebar? I can convert them into flip-cards (Vista-style) or create JSON-LD for internal linking.

View Answers & Results

100 Power BI DAX Quiz with Answers [2025 Updated]

Master Power BI DAX — 100 Quiz Questions with Answers

Why this DAX Quiz helps you win

How the quiz is organised (clear learning pathway)

Part 1 — Beginner (One-by-one)

Part 2 — Intermediate (One-by-one)

Part 3 — Advanced (One-by-one)

Part 4 — Expert (One-by-one)

All Answers & Results — Parts 1 to 4

Master Power BI DAX — 100 Quiz Questions with Answers

Why this DAX Quiz helps you win

How the quiz is organised (clear learning pathway)

Conclusion & Related Practice Quizzes