Data Analytics Quiz

What is data analytics primarily used for?

• To visualize data without analysis

• To convert raw data into actionable insights

• To create raw data

• To store data indefinitely

What does big data typically describe?

• Small sets of structured data

• Large sets of diverse data generated at high speed

• Data that is easy to analyze

• Data that is only generated once

Which of the following is NOT a step in big data analytics?

• Data cleansing

• Data visualization

• Data collection

• Data storage

What is the purpose of data cleansing?

• To store data in a warehouse

• To visualize data trends

• To remove errors and inconsistencies

• To collect more data

Which type of analytics helps understand why something happened?

• Diagnostic analytics

• Prescriptive analytics

• Predictive analytics

• Descriptive analytics

What is ETL in data processing?

• Evaluate, Transform, Load

• Evaluate, Test, Launch

• Extract, Transfer, Load

• Extract, Transform, Load

Which of the following is a characteristic of prescriptive analytics?

• It visualizes past data

• It predicts future trends

• It identifies data anomalies

• It suggests optimal responses to outcomes

What is a data lake?

• A structured database for relational data

• A storage system for both structured and unstructured data

• A type of data warehouse

• A method for data cleansing

Which technique is used to analyze text data?

• Predictive modeling

• Sensor data analysis

• Text mining

• Outlier analysis

How can data analytics improve customer insight?

• By ignoring customer feedback

• By eliminating all data sources

• By providing detailed insights into customer behavior

• By focusing solely on sales data