How do denormalization techniques in database design impact system performance and data redundancy?
- Degrade system performance and increase redundancy
- Have no impact on system performance
- Improve redundancy but not system performance
- Improve system performance and reduce redundancy
Denormalization in database design involves reducing the level of normalization for performance reasons. While it can improve query performance, it may increase data redundancy and degrade system performance due to extra storage and maintenance overhead.
In software maintenance, _____ refers to the practice of regularly checking and updating software to ensure its optimal performance.
- Adaptive
- Corrective
- Perfective
- Preventive
Preventive maintenance involves regular checks and updates to ensure software's optimal performance, preventing issues before they occur.
How does the Implementation phase of the SDLC differ from the Design phase?
- Design focuses on user requirements, while Implementation focuses on system requirements.
- Design is about coding, and Implementation is about testing.
- Design is about fixing bugs, and Implementation is about finding them.
- Design phase focuses on planning, while Implementation is about coding.
The Design Phase primarily focuses on planning and conceptualizing the software, while the Implementation Phase involves coding or programming the actual software.
Which aspect of User Interface Design focuses on ensuring that the system provides feedback to the user after every interaction?
- Content and images.
- Layout and color choice.
- Navigation and menus.
- Responsiveness and feedback.
Responsiveness and feedback are crucial aspects of User Interface Design. These ensure that the system responds to user actions with clear feedback. It's essential for usability, as users need to know their interactions have been registered, preventing confusion and frustration. Responsiveness includes things like button highlighting or confirming actions, enhancing the user experience.
In a scenario where a project has a tight deadline and minimal initial requirements, how does Agile provide an advantage over traditional SDLC models?
- Agile embraces change and focuses on delivering working software incrementally
- Agile focuses on detailed documentation
- Agile follows a rigid schedule and fixed scope
- Agile prioritizes detailed project planning
Agile provides an advantage in such a scenario by delivering working software incrementally and adapting to changing requirements, making it suitable for tight deadlines and minimal initial requirements.
In Software Architecture Design, the _____ pattern helps in minimizing the communication and dependencies between different modules.
- Adapter
- Mediator
- Observer
- Singleton
The Mediator design pattern is used in Software Architecture Design to minimize the communication and dependencies between different modules by centralizing complex interactions and communication.
The process of creating a data model for an information system by defining entities to be used is known as _____.
- Data Dictionary
- Data Warehousing
- Entity Relationship Diagram
- Software Development
The process of creating a data model for an information system by defining entities to be used is known as an "Entity Relationship Diagram" (ERD). An ERD helps visualize the structure of data and how entities are related.
For effective User Interface Design, _____ refers to arranging elements to show their order of importance.
- Alignment
- Consistency
- Feedback
- Hierarchy
In User Interface Design, hierarchy is essential for arranging elements to convey their order of importance. It helps users navigate and understand the content and interactions effectively.
What is the main focus of Object-Oriented Programming (OOP)?
- Algorithm efficiency
- Code optimization
- Data structure design
- Modularity and reusability
Object-Oriented Programming (OOP) primarily focuses on modularity and reusability. It encourages organizing code into objects that can be easily reused, promoting a more modular and maintainable codebase.
What strategies can be employed to ensure that both functional and non-functional requirements are addressed adequately in a software project?
- Address non-functional requirements later in the project
- Include non-functional requirements in user stories
- Prioritize non-functional requirements
- Use Acceptance Test Driven Development (ATDD)
To ensure both functional and non-functional requirements are addressed, it's essential to include non-functional requirements in user stories, prioritize them along with functional requirements, and use techniques like Acceptance Test Driven Development (ATDD). Delaying non-functional requirements can lead to issues.