How to use the Power BI Interview Flashcards
- 1. Choose topicsPick one topic or all of them, a round size, and whether to skip cards you already know.
- 2. Flip and gradeRead the question, answer aloud, then reveal the answer and mark it known or still learning.
- 3. Review your resultsMissed cards come back later in the round. At the end see your score by topic and download the cards to revise.
What the deck covers
This deck covers the three areas Power BI interviews dig into: getting data ready, modelling it well, and writing DAX that behaves correctly. The 20 cards are grouped into 8 topics: Basics, Power Query, Modelling, DAX, Visuals, Security, Service, Performance. Answers are short on purpose: one or two sentences you can say out loud, which you then back up with an example from your own projects.
A card from the deck
Q: Calculated column vs measure?
A: A calculated column is computed row by row when data refreshes and stored in the model. A measure is computed when used, in the current filter context, and isn't stored. Prefer measures for aggregations.
Expect a follow-up asking when a calculated column is the right choice, such as a value you need to slice by.
How to study with it
- Rebuild the YTD and percent-of-total measures in a sample file.
- Explain filter context using a matrix visual with a slicer.
- In the Power BI deck, cards you mark "still learning" come back three cards later in the same round, and the results screen lists them so you can download a revision sheet.
More questions from this deck
Other Power BI questions you'll meet include:
- Report vs dashboard?
- What is a star schema?
- Why build a date table?
- SUM vs SUMX?
- How do you avoid divide-by-zero errors?
Frequently asked questions
Is Fabric covered?
The cards focus on Power BI Desktop and the service; most apply inside Fabric too.
Does it help with PL-300?
Yes for revision. Use the PL-300 practice test for exam-style questions.
Are the Power BI interview flashcards free?
Yes. You can flip through every card of the Power BI interview flashcards without signing up. When you open your results for the first time, we ask once for your name and WhatsApp number; after that the Power BI interview flashcards and every other Uncodemy tool open straight away.