How does the Maintainability Index (MI) provide insights into the future perspectives of a software product?
- MI assesses project budget
- MI measures code complexity and maintainability
- MI evaluates user satisfaction
- MI predicts market demand
The Maintainability Index (MI) provides insights into the future perspectives of a software product by measuring code complexity and maintainability. A higher MI score indicates that the code is easier to maintain, reducing the cost and effort required for future enhancements or bug fixes.
What is a key benefit of software re-engineering in relation to system performance?
- Improved user interface
- Enhanced security
- Increased speed and efficiency
- Better hardware compatibility
Software re-engineering can lead to increased speed and efficiency. By optimizing and modernizing software, it can run faster and more efficiently, improving system performance. This can involve optimizing code, upgrading data structures, and other enhancements.
What does the acronym "DBMS" stand for in the context of database design?
- Database Model Selection
- Database Management System
- Data Backup and Management Service
- Data Broadcasting and Messaging System
DBMS stands for Database Management System. It is software that allows users to interact with and manage databases, including tasks like data storage, retrieval, and data manipulation.
OAuth is a widely adopted open standard for access delegation commonly used for _____ authorization in APIs.
- Read
- Write
- User
- Token
OAuth is commonly used for "Token" authorization in APIs. OAuth allows a client to access resources on behalf of a resource owner, and it typically involves the use of access tokens for authorization.
How can the Dependency Inversion Principle be employed to minimize the impact of changes in lower-level modules on high-level modules?
- It can't be used for this purpose
- By making high-level modules dependent on low-level modules
- By minimizing the use of interfaces
- By inverting the dependencies
The Dependency Inversion Principle (DIP) suggests inverting the traditional dependency relationship, where high-level modules should not depend on low-level modules directly. Instead, both should depend on abstractions (interfaces). This inversion reduces the impact of changes in lower-level modules on high-level modules because high-level modules only depend on abstract interfaces, making them more stable.
Imagine a situation where a software application processes data through several interrelated algorithms. How might white box testing be applied to validate the accuracy and efficiency of these algorithms?
- By only examining the input data
- By testing the software without any knowledge of its internal structure
- By inspecting and testing the code and internal logic of the algorithms
- By relying solely on user feedback
White box testing, in this context, involves examining and testing the internal code and logic of the algorithms to ensure their accuracy and efficiency. It requires knowledge of the application's internal structure.
_____ testing in UI design involves evaluating a product by testing it on users to directly observe and analyze how they use it.
- Usability
- Functionality
- Regression
- Performance
Usability testing in UI design is a crucial process where a product is evaluated by testing it on actual users. This allows designers to directly observe and analyze how users interact with the interface, providing insights into areas of improvement to enhance the user experience.
Consider a situation in which a security team identifies a new piece of malware. How can reverse engineering aid in understanding its functionality and mitigating its impact?
- It can permanently remove the malware without analysis
- It can identify the malware's source code and author
- It can help understand how the malware operates and how to counteract it
- It can encrypt the malware to make it harmless
Reverse engineering can help dissect malware to understand its inner workings, discover vulnerabilities, and develop countermeasures to mitigate its impact.
Suppose a development team is building a microservices-based application. Discuss the potential strategies and considerations for designing APIs that facilitate communication between different microservices.
- Use RESTful APIs
- Implement GraphQL
- Design APIs with versioning
- Utilize WebSockets
In a microservices architecture, designing APIs with versioning is crucial to maintain backward compatibility while allowing for changes and enhancements. Versioning enables different microservices to communicate without breaking existing functionality.
Which type of software maintenance deals with fixing bugs and errors after the software has been deployed?
- Corrective Maintenance
- Adaptive Maintenance
- Perfective Maintenance
- Preventive Maintenance
Corrective maintenance, also known as bug fixing, addresses and fixes errors, defects, or issues that occur after the software has been deployed. It is aimed at ensuring the software functions correctly.