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Which action should you take?

Question 1: You need to integrate data from multiple sources into a data warehouse. What is your first step?

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Question 2: You need to design a data warehouse schema for reporting purposes. What do you use?

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Question 3: You need to model a scenario where an entity is a subtype of another entity. What is your approach?

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Question 4: How do you identify departments that have more employees than the average number of employees per department?

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Question 5: Your data warehouse needs to support complex analytical queries. What is your approach?

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Question 6: What approach would you take to handle historical data in a dimensional model?

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