In TDD, what is the purpose of a "failing test"?
- To confirm code correctness
- To identify bugs
- To outline future features
- To provide documentation
The purpose of a "failing test" in Test-Driven Development (TDD) is to identify bugs. A failing test indicates that the code does not meet the expected behavior, prompting the developer to fix the issues before proceeding.
Your team needs to implement a new feature in an existing project. Explain how you would leverage collaboration tools to manage the development process and ensure timely delivery.
- Create a project board with tasks, assign responsibilities, set milestones, and use a chat platform for real-time communication
- Share a list of tasks via email, conduct weekly status meetings, and update a physical task board in the office
- Use individual to-do lists, communicate through personal chat applications, and rely on individual project timelines
- Utilize a whiteboard for task management, assign tasks verbally during team meetings, and rely on individual project timelines
Leveraging collaboration tools involves creating a project board, assigning tasks, setting milestones, and using chat platforms for real-time communication. This approach ensures a structured development process and facilitates timely delivery through effective task management.
The "Console" tab in Browser Developer Tools is used for logging _______ messages.
- Debug
- Error
- Info
- Warning
The "Console" tab in Browser Developer Tools is used for logging debug messages. Developers can use the console to log information, debug code, and identify issues during development.
Which of the following is NOT a common level of severity used in logging systems?
- Debug
- Fatal
- Info
- Warning
Debug is not a common level of severity used in logging systems. The common levels include Info, Warning, Error, and Fatal. Debug is usually more detailed and is used during development for debugging purposes.
_______ caching involves storing data in a distributed manner across multiple servers.
- Distributed
- Local
- Network
- Remote
Distributed caching involves storing data in a distributed manner across multiple servers or nodes. This enhances scalability and improves access times for applications.
Which of the following is NOT a benefit of practicing TDD?
- Decreased development time
- Early bug detection
- Improved code documentation
- Increased code reliability
While TDD offers various benefits, improved code documentation is not typically considered one of them. TDD focuses on testing and code design rather than documentation, which is a separate aspect of software development.
During a code review process, it is essential to maintain a balance between offering constructive criticism and preserving team _______.
- Autonomy
- Collaboration
- Creativity
- Harmony
During a code review process, it is essential to maintain a balance between offering constructive criticism and preserving team Collaboration. This helps foster a positive and productive working environment.
Your company's web application is experiencing performance issues due to database overload. How would you use caching to alleviate this bottleneck?
- Database sharding to distribute load
- Object caching with tools like Memcached
- Prefetching data from the database
- Query result caching at the application layer
Object caching with tools like Memcached is a useful strategy to alleviate database overload. It involves caching entire objects or data structures, reducing the need for repetitive database queries and improving overall performance.
Which concurrency control technique uses timestamps to order transactions?
- Optimistic Concurrency Control
- Serializability
- Timestamp Ordering
- Two-Phase Locking
Timestamp Ordering is a concurrency control technique that uses timestamps to order transactions. Each transaction is assigned a timestamp, and the order of timestamps is used to determine the order in which transactions can access data, ensuring consistency.
What is Git?
- Database Management System
- Programming Language
- Version Control System
- Web Browser
Git is a Version Control System (VCS) that enables multiple developers to collaborate on a project efficiently. It tracks changes in source code during software development, allowing teams to manage and coordinate their work.