Power BI Fundamentals and Microsoft Ecosystem Questions
Fundamentals of Power BI usage, including Power BI Desktop and Power BI Service, data modeling with DAX, report and dashboard design, data connectivity within the Microsoft ecosystem (Excel, SQL Server, Azure Synapse/Azure SQL Database, Azure Data Lake), and governance, security, deployment patterns, and best practices for BI solutions in Microsoft-centric environments
HardTechnical
0 practiced
Write an advanced DAX measure that calculates a dynamic running rank of products by SalesAmount, partitioned by ProductCategory and resetting each calendar year. The ranking should handle ties deterministically and perform well for large models. Show sample DAX and explain key decisions.
MediumTechnical
0 practiced
Describe composite models in Power BI where you combine Import-mode historical aggregates with DirectQuery for current transactions. Provide a concrete example architecture, explain how to build aggregation tables in Power BI, and discuss query reduction and trade-offs in function support and refresh behavior.
MediumTechnical
0 practiced
Explain Power BI licensing tiers (Free, Pro, Premium Per User, Premium Capacity). Discuss how licensing affects dataset size limits, refresh frequency, sharing/collaboration capabilities, access to paginated reports, AI features, and provide a recommendation for a mid-sized organization with 200 active users and aggregated data footprint of 2 TB.
MediumTechnical
0 practiced
Design DAX measures for Month-over-Month (MoM) percentage change and Year-over-Year (YoY) percentage change in SalesAmount. Assume 'dim_date' is a continuous date table and explain sample DAX for both measures including handling divide-by-zero and missing months.
MediumTechnical
0 practiced
Describe report design best practices in Power BI focused on clarity and accessibility. Cover choosing appropriate visual types, maintaining color contrast (including color-blind friendly palettes), clear labeling, logical layout and navigation, effective use of tooltips and drillthrough, and configuring mobile layout and screen-reader accessibility.
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