S4DS Quiz

Sapne dekhna

• Galat Baat hai!

• Achhi baat hai!

Which of the following best describes the role of a data scientist?

• a) Writes code for mobile applications

• b) Manages database servers

• c) Extracts insights from data to solve complex business problems

• d) Designs marketing campaigns

In the data science lifecycle, what is the first step?

• a) Data Cleaning

• b) Asking the right question

• c) Model Building

• d) Data Visualization

Which of these is NOT a benefit of data visualization?

• a) Identifying trends and outliers

• b) Enhancing decision-making

• c) Increasing the accuracy of predictive models

What is the main difference between SQL and NoSQL databases?

• a) SQL databases store structured data, NoSQL databases store unstructured data

• b) SQL is a programming language, NoSQL is a framework

• c) NoSQL databases cannot handle large datasets

• d) SQL databases are used for AI tasks

Which of the following best describes "big data"?

• a) Large datasets that can be analyzed using basic Excel formulas

• b) Datasets too large for traditional data processing applications

• c) Data that is only structured and easy to process

• d) Data collected from a single source

What is the primary purpose of data cleaning in the data science process?

• a) To visualize data trends

• b) To remove inaccuracies and inconsistencies

• c) To store data in a database

• d) To create machine learning models

Which of the following is a common tool used for data analysis?

• a) Microsoft Word

• b) Tableau

• c) Adobe Photoshop

• d) Notepad

What does a machine learning model say at the start of a relationship?

• a) "I’ll always fit to you!"

• b) "I’m learning from every interaction!"

• c) "Together, we can reduce the error margin"

• d) "Let’s not overfit, we need balance!"

Which of the following is a key component of the data science workflow?

• a) Data collection

• b) Data storage

• c) Data visualization

• d) All of the above