G11 Lesson 02 (Namal Rajapakshe

What is a system?

• A collection of hardware and software that work together

• A set of interrelated components that work together to achieve a common goal

• A process for managing information and data

• A type of programming language

What is an example of a closed system?

• A computer

• A car engine

• A factory

•  An ecosystem

What is the purpose of an information system?

• To collect, store, and process data

• To manage hardware and software

• To develop new technologies

• To provide entertainment

What is a transaction processing system?

• A system for managing customer relationships

• A system for processing sales transactions

• A system for analyzing financial data

• A system for managing inventory

What is a decision support system?

• A system for managing human resources

• A system for generating reports and data visualizations

• A system for analyzing data and providing insights to users

• A system for managing customer service interactions

What is the main advantage of computer-based information systems over manual information systems?

• They are less expensive to implement

• They require less human intervention and are more efficient

• They are easier to maintain and update

• They are less prone to security risks

What is a key challenge associated with information systems?

• They are too expensive to implement

• They are difficult to use and require extensive training

• They are prone to security risks and data breaches

• They are not customizable to meet the specific needs of an organization

Which SDLC model emphasizes collaboration, flexibility, and adaptability, with software developed in short, iterative cycles or "sprints"?

• Waterfall model

• Agile model

• Spiral model

• Prototype model

Which SDLC model involves developing a working prototype of the system to gather feedback and refine requirements before proceeding with full-scale development?

• Waterfall model

• Agile model

• Spiral model

• Prototype model

Which SDLC model emphasizes continuous risk assessment and mitigation throughout the software development process?

• Waterfall model

• Agile model

• Spiral model

• Prototype model