What is the primary purpose of data analytics?

• To entertain users

• To gather data for storage

• To make informed decisions based on data

• To create more complex databases

Which of the following is a key component of descriptive analytics?

• Predicting future trends

• Real-time data processing

• Summarizing past data

• Developing machine learning models

What does the term 'big data' refer to?

• Data collected from social media only

• Extremely large and complex data sets

• Data that is stored in a single location

• Data that only includes numbers

Which of the following tools is commonly used for data visualization?

• SQL

• Python

• Excel

• Tableau

In data analytics, what does ETL stand for?

• Extract, Transform, Load

• Evaluate, Test, List

• Execute, Trace, Link

• Edit, Transfer, Log

Which of the following is an example of qualitative data?

• The average temperature

• Customer feedback comments

• The number of sales in a month

• Daily revenue figures

What is the significance of a 'data warehouse'?

• It stores unprocessed data temporarily

• It is used for operational data processing

• It is a central repository for integrated data

• It exclusively stores cloud data

What is 'data mining'?

• Extracting raw data from various sources

• The process of discovering patterns in large data sets

• Storing data in a secure location

• Cleaning data for accuracy

Which of the following best describes 'predictive analytics'?

• It analyzes past data only

• It focuses on real-time data

• It uses data to predict future outcomes

• It processes unstructured data

What is a 'dashboard' in data analytics?

• A type of database

• A collection of raw data

• A visual display of key metrics

• A tool for coding