Data Analysis Prep 2026 | SQL, Power BI, Excel, Python

Prepare for real-world Data Analyst interviews, technical assessments, certification exams, and analytics roles with this comprehensive practice exam designed to simulate modern Data Analyst job requirements. This exam covers the most in-demand analytical skills used by organizations across technology, finance, healthcare, e-commerce, consulting, and enterprise environments. Exam DomainsSQL & Database Analytics (23%)SELECT StatementsFiltering & SortingJoinsAggregationsWindow FunctionsCommon Table Expressions (CTEs)Query OptimizationPerformance TuningDatabases & Data Warehousing (18%)Relational DatabasesData ModelingData WarehousesStar SchemaSnowflake SchemaFact & Dimension TablesData LakesPython & Pandas (17%)Data CleaningData TransformationPandas OperationsNumPy FundamentalsExploratory Data Analysis (EDA)Data ManipulationStatistics & Analytics (16%)Descriptive StatisticsProbabilityDistributionsHypothesis TestingConfidence IntervalsCorrelation AnalysisA/B TestingBusiness Analytics & Communication (14%)KPI AnalysisFunnel AnalysisCustomer RetentionRevenue AnalysisBusiness ReportingStakeholder CommunicationPower BI & Excel (7%)Dashboard DevelopmentData VisualizationDAX FundamentalsPower QueryPivot TablesXLOOKUPAdvanced Excel Functi