Power BI 778 Study Guide 2026
Everything you need to pass the Power BI 778 exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
Power BI 778 exam key facts
- Microsoft says most of its certification exams, including role-based associate exams such as PL-300, typically contain 40 to 60 questions, though the number can vary. Source
- Candidates get 100 minutes to complete Microsoft Exam PL-300: Microsoft Power BI Data Analyst. Source
- Candidates need a score of 700 or higher to pass Microsoft Exam PL-300: Microsoft Power BI Data Analyst. Source
- The price of Microsoft Exam PL-300 depends on the country or region where the exam is proctored. Source
📋 Power BI 778 Exam Format at a Glance
📚 Power BI 778 Topics to Study (21)
✍️ Sample Power BI 778 Questions & Answers
1. Which cardinality setting should you use when one row in Table A matches exactly one row in Table B?
A one-to-one relationship means each row in Table A has exactly one corresponding row in Table B.
2. What does 'Promote Headers' do in Power Query?
Promote Headers takes the first row of the dataset and converts it into the column header names.
3. What Power BI feature allows you to group numerical data into ranges for analysis?
Binning in Power BI groups continuous numerical data into defined ranges (bins) to simplify distribution analysis.
4. What does the Power BI Admin Portal allow tenant administrators to manage?
The Admin Portal gives Power BI tenant admins control over organization-wide settings, including export controls, sharing policies, and audit logs.
5. Which DAX function returns the number of distinct values in a column?
DISTINCTCOUNT counts the number of unique, non-blank values in a column.
6. What is the purpose of a 'Parameter' in Power Query?
A Power Query Parameter is a reusable variable that can be used in query steps, source paths, or filter conditions.
🎯 Free Power BI 778 Practice Tests
📖 Power BI 778 Guides & Articles
What Practice Test Geeks adds beyond an AI chat for Power BI 778
An AI chatbot can quiz you, but it can't reproduce the exam conditions or keep your record. Here you get:
- A timed, full-length Power BI 778 mock exam — 45 questions in 120 minutes with a 70% pass mark, modeled on the official exam's question count and time limit, followed by a score report broken down by exam domain.
- A fixed Power BI 778 question bank: the same test every attempt, so your score is comparable from one try to the next instead of changing with every regenerated quiz.
- Progress saved on your device: completed tests, scores and missed questions stay in My Progress, so you can retake only what you got wrong.
- A printable Power BI 778 cheat sheet you can print or save as a PDF.
- Power BI 778 flashcards built from the same question bank.
- Free Power BI 778 practice tests with the correct answer shown after each question.
How this page was made: written with AI tools and published by Nathan Beja, founder of Practice Test Geeks, who is responsible for its content. Exam facts are checked against the official sources listed below. Not reviewed by a subject-matter expert. Editorial policy
Sources & references
Exam facts on this page (fees, format, dates, passing scores) are checked against these official sources; the date is our last check. Editorial policy
- learn.microsoft.com — Renewal, retake fee, passing score, exam format, test delivery, fees, time limit, exam information · verified Oct 2026