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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the purpose of validating user activity?
💡 Hint: Think about how user actions inform business decisions.
Question 2
Easy
What SQL command is used to count logins?
💡 Hint: It’s a function that summarizes values.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What SQL function would you use to count user logins?
- SUM
- COUNT
- AVG
💡 Hint: It tallies occurrences of a specified condition.
Question 2
True or False: The GROUP BY clause is necessary when you are counting occurrences for unique entries.
- True
- False
💡 Hint: Consider how aggregation affects your dataset.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Suppose you have user activity data that reveals a drop in logins post a feature update. Formulate a strategy to investigate this.
💡 Hint: Consider qualitative and quantitative data to get a fuller picture.
Question 2
You suspect that a specific demographic logs in more after certain marketing campaigns. How would you explore this using SQL?
💡 Hint: Think about how to isolate different groups in your analysis.
Challenge and get performance evaluation