Practice Offline Sources - 4.3.1 | Data Collection Techniques | Data Science Basic
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is a CSV file?

πŸ’‘ Hint: Think about how data is separated in the file.

Question 2

Easy

Name one advantage of using Excel for data analysis.

πŸ’‘ Hint: Consider the features Excel provides for individual users.

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 does CSV stand for?

  • Comma-Separated Values
  • Centralized Secure Values
  • Comma Synchronized Variables

πŸ’‘ Hint: Think about the structure of the file.

Question 2

True or False: Databases are only for storing small datasets.

  • True
  • False

πŸ’‘ Hint: Consider the purpose of databases.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

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.

πŸ’‘ Hint: Think about how to relate data from both files.

Question 2

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.

πŸ’‘ Hint: Remember to utilize the proper commands for connecting and querying.

Challenge and get performance evaluation