SAD-Q1

What is data?

• Processed information

• Raw facts and figures

• Knowledge gained from experience

• None of the above

Which of the following best defines information?

• Random collection of data

• Organized and processed data that is meaningful and useful

• Raw facts and figures

• Unstructured data

In the context of system analysis and design, what is the primary purpose of data?

• To provide insights and knowledge

• To support decision-making

• To facilitate communication

• All of the above

What is the role of data in the system development life cycle (SDLC)?

• Data serves as input for the system

• Data is processed to generate outputs

• Data is stored and retrieved as needed

• All of the above

1. Which of the following represents an example of structured data?

• Emails

• Spreadsheets

• Social media posts

• Images

What is the significance of data modeling in system analysis and design?

• To represent the structure and relationships of data

• To analyze user requirements

• To design user interfaces

• • D) None of the above

1. What is a data dictionary?

• A tool used for modeling data

• A collection of data elements and their attributes

• A technique for requirements gathering

• A type of database management system

1. What is the purpose of normalization in database design?

• To reduce data redundancy and improve data integrity

• To increase data redundancy and improve data integrity

• To speed up data processing

• To simplify data storage

1. Which of the following is NOT a characteristic of quality data?

• Accuracy

• Consistency

• Complexity

• Relevance

1. What is the difference between primary and secondary data?

• Primary data is collected firsthand, while secondary data is obtained from existing sources.

• Secondary data is collected firsthand, while primary data is obtained from existing sources.

• Both primary and secondary data are obtained from existing sources.

• None of the above