Practice Offline Sources (4.3.1) - Data Collection Techniques

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9 questions

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Exercise
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Quiz
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6 sample questions

Question 1.
What is a CSV file?
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Think about how data is separated in the file.
Question 2.
Name one advantage of using Excel for data analysis.
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Consider the features Excel provides for individual users.
3Question 3.
What does CSV stand for?
- Comma-Separated Values
- Centralized Secure Values
- Comma Synchronized Variables
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Think about the structure of the file.
4Question 4.
True or False: Databases are only for storing small datasets.
- True
- False
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Consider the purpose of databases.
Question 5.
You have two CSV files containing different data about users (user_info.csv and user_purchase.csv). Explain how you would combine these two datasets into a single DataFrame in pandas.
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Think about how to relate data from both files.
Question 6.
You need to analyze a large dataset stored in a database. Describe the steps you would take to connect to the database and retrieve data for analysis.
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Remember to utilize the proper commands for connecting and querying.

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