Data and Information

Question 1

What are the 3 benefits of relational databases?

Answer 1

They prevent:

• Data redundancy.
• Data inconsistency.
• Data duplication.

Question 2

What are the 3 types of test data?

Answer 2

• Normal - Standard data.
• Extreme - Data at boundaries (e.g: 99 if boundary is 100).
• Erroneous - INCORRECT DATA.

Question 3

What is data?

Answer 3

Characters (Numbers/Letters/Symbols) with no context.

Question 4

What is information?

Answer 4

Data with context that has been processed by the computer.