Indexing

30 Dec, 2024

Most Frequently asked dataframe Interview Questions (2024)

A DataFrame is a two-dimensional, size-mutable, and potentially heterogeneous tabular data structure in pandas, which is a widely used data analysis and manipulation library in Python. It is similar to a table in a database or an Excel spreadsheet, where data is organized in rows and columns. Each column can hold different data types (e.g., integers, floats, strings), making it more flexible and powerful than a regular 2D array.

29 Dec, 2024

Most Frequently asked database Interview Questions (2024)

A database is an organized collection of structured data that is stored and managed electronically. It is designed to handle large volumes of information in a way that is efficient, secure, and accessible. Databases allow for the easy storage, retrieval, modification, and management of data. They are essential for applications ranging from small websites to large enterprise systems.

28 Dec, 2024

Most Frequently asked pandas Interview Questions (2024)

Pandas is an open-source data manipulation and analysis library for Python. It provides fast, flexible, and expressive data structures, such as DataFrames and Series, that make working with structured data (e.g., tables, time-series data, CSV files, etc.) easy and efficient. Pandas is particularly well-suited for data wrangling, data cleaning, manipulation, and analysis.