Practice Aggregation Pipeline (19.4.2) - Advanced SQL and NoSQL for Data Science

Practice: Aggregation Pipeline

Lesson 19.4.2Advanced SQL and NoSQL for Data Science

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9 questions

Flashcard drill
3 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What does the $match stage do in an aggregation pipeline?
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Think about filtering real-world data.
Question 2.
True or False: The aggregation pipeline can only use one stage.
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Consider how you can process data in steps.
3Question 3.
What is the purpose of the aggregation pipeline in MongoDB?
- To write data
- To transform and analyze data
- To store data
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Consider the data processing tasks you've learned.
4Question 4.
True or False: You can use the $group stage to filter data in the aggregation pipeline.
- True
- False
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Remember the functions of different pipeline stages.
Question 5.
Create an aggregation pipeline to find the top 5 customers based on total order amounts. Include filtering to only consider completed orders.
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Think about how ordering can affect the results you want.
Question 6.
Design an aggregation pipeline that analyzes user ratings for products, grouping by the product ID and calculating the average rating.
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Consider how ratings accumulate over time.

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