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.
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.
_______ 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.
What is the principle of least privilege in security?
- Allowing users to choose their own access rights
- Assigning access rights based on seniority within the organization
- Granting all users maximum access rights by default
- Restricting users' access rights to the minimum necessary for their job functions
The principle of least privilege in security advocates restricting users' access rights to the minimum necessary for their job functions. This minimizes the potential damage from accidental mishandling or intentional malicious actions.
Which server-side language is known for its scalability and event-driven architecture, commonly used with frameworks like Express.js?
- Java
- Node.js
- Python
- Ruby
Node.js, based on JavaScript, is known for its scalability and event-driven architecture. It is commonly used with frameworks like Express.js for building efficient server-side applications.
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.