SQL Roadmap from Zero to Advance

This test includes pandas time exercises and Python interview questions to help strengthen your data analysis and coding skills.

Mastering Pandas for Data Analysis

Which function is used to read a CSV file in Pandas?

Python library for data manipulation and analysis

Which function applies a function along an axis of the DataFrame?

Which function merges two DataFrames in Pandas?

What are the two main data structures in Pandas?

Used for grouping data based on column values

What is the purpose of `groupby()` in Pandas?

Which function is used to replace missing values in Pandas?

How do you reset the index of a DataFrame?

Hierarchical indexing for higher-dimensional data

What is the purpose of MultiIndex in Pandas?

How can you optimize memory usage in Pandas DataFrames?

Improves performance by avoiding Python loops

What is the advantage of vectorized operations in Pandas?

Which function is used to create pivot tables in Pandas?

What is the advantage of using categorical data type in Pandas?