🧑💻 Data Analyst Interview Questions & Preparation Tips
Prepare with a mix of technical, analytical, and business-oriented questions to ace your interview.
SQL Questions
- Fetch the top 5 highest revenue-generating customers?
- Difference between
INNER JOIN,LEFT JOIN, andFULL OUTER JOIN? - How to optimize a slow-running query?
- CTEs and when to use them?
Data Visualization (Power BI / Tableau / Excel)
- Create a dashboard to track KPIs?
- Difference between measures and calculated columns in Power BI?
- Handle missing data in Tableau?
- Example of a DAX function?
ETL & Data Processing
- What is ETL, and its role in BI?
- Explain a complex workflow built in Alteryx.
- Automate reporting using Power Query in Excel?
- Define KPIs for a business process.
- Example of using data to drive a business decision.
- Identify cost-saving opportunities in reporting.
- Share a report that uncovered hidden business insights.
Stakeholder Management
- Handling conflicting reporting requirements.
- Explaining complex data insights to non-technical stakeholders.
Problem-Solving & Debugging
- Actions when a report shows incorrect numbers.
- Ensure accuracy of a new KPI.
Project Management & Process Improvement
- Lead a project to automate/improve reporting.
- Ensure timely delivery of reports.
- Key credit risk metrics in financial services?
- Analyze trends in customer credit behavior.
- Ensure compliance and data security in reporting.
- Why do you want to work at this company?
- Tell me about a challenging project and how you handled it.
- What are your strengths and weaknesses?
- Where do you see yourself in five years?
- Brush up on SQL, Power BI, and ETL tools.
- Learn key financial and credit reporting metrics.
- Practice explaining data-driven insights clearly.
- Showcase problem-solving skills with real examples.
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