Data and Big Data Quiz iLearn L1

What is the primary difference between data and information?

• Data is always qualitative, while information is always quantitative.

• Data is always structured, while information is always unstructured.

• Data is raw facts and figures, while information is processed data.

• Data is always numerical, while information is always textual.

Which of the following is an example of qualitative data?

• The temperature is 22.6°C.

• There are 3 cars in the parking lot.

• I feel satisfied with my job.

• The ocean is 3.78 meters deep.

What type of data can be broken down into discrete and continuous categories?

• Quantitative data

• Structured data

• Unstructured data

• Qualitative data

Which of the following is a characteristic of discrete data?

• It can take on any value within a range.

• It is always positive.

• It is always negative.

• It can only take on whole numbers.

What is the main advantage of using NoSQL databases for qualitative data?

• They are always faster than SQL databases.

• They allow for easier collection and storage of unstructured data.

• They are cheaper than SQL databases.

• They automatically convert qualitative data to quantitative data.

What is the primary focus of big data analysis?

• To reduce the volume of data.

• To increase the speed of data processing.

• To convert all data into structured data.

• To extract meaningful value from large data sets.

Which of the following is NOT one of the 5 V's of big data?

• Validity

• Variety

• Velocity

• Volume

What does the 'Velocity' in the 5 V's of big data refer to?

• The speed at which data is accumulated.

• The speed at which data is deleted.

• The speed at which data is processed.

• The speed at which data is stored.

What type of data is typically found in an Excel spreadsheet?

• Qualitative data

• Structured data

• Semi-structured data

• Unstructured data

Which of the following is an example of semi-structured data?

• A video file

• A log file

• A text document

• A database table