WJEC - Section2

What is data?

• Processed information

• Raw facts and figures

• Knowledge derived from information

• Encoded information

How is information different from data?

• Information is raw facts and figures

• Information is data that has been processed

• Information is derived from knowledge

• Information is encoded data

What is knowledge?

• Raw facts and figures

• Data that has been processed

• Information derived by applying rules

• Encoded data

Why is good quality data important?

• It ensures faster processing

• It reduces storage requirements

• It improves decision-making

• It increases data redundancy

What is one benefit of encoding data?

• Increased data redundancy

• Improved speed of access

• Reduced data accuracy

• Increased storage requirements

How does encoding data improve speed of access?

• By reducing the size of data files

• By increasing the complexity of data

• By making data more readable

• By increasing data redundancy

What is a disadvantage of using ICT for storing data?

• Increased data accuracy

• Increased data redundancy

• Potential for data breaches

• Improved speed of access

Which of the following is a file type?

• JPEG

• RAM

• CPU

• USB

What is data compression?

• Reducing the size of data files

• Increasing the size of data files

• Encoding data for security

• Improving data accuracy

What are file properties?

• Characteristics of a file such as size and type

• Methods of encoding data

• Techniques for data compression

• Types of data storage devices