Practice Validate User Activity For A Feature (4.4)

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9 questions

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Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is the purpose of validating user activity?
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Think about how user actions inform business decisions.
Question 2.
What SQL command is used to count logins?
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It’s a function that summarizes values.
3Question 3.
What SQL function would you use to count user logins?
- SUM
- COUNT
- AVG
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It tallies occurrences of a specified condition.
4Question 4.
True or False: The GROUP BY clause is necessary when you are counting occurrences for unique entries.
- True
- False
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Consider how aggregation affects your dataset.
Question 5.
Suppose you have user activity data that reveals a drop in logins post a feature update. Formulate a strategy to investigate this.
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Consider qualitative and quantitative data to get a fuller picture.
Question 6.
You suspect that a specific demographic logs in more after certain marketing campaigns. How would you explore this using SQL?
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Think about how to isolate different groups in your analysis.

5 more questions in this section. Enroll free to practise them all.