Normalization helps reduce _______ and dependency issues in a database.
- Performance
- Redundancy
- Scalability
- Security
Normalization helps reduce Redundancy in a database by organizing data to eliminate duplicate entries. It also addresses dependency issues.
Your application requires flexible schemas and the ability to store hierarchical data. Which NoSQL database would you recommend and why?
- Cassandra
- MongoDB
- Neo4j
- Redis
MongoDB is a document-oriented NoSQL database that supports flexible schemas and is well-suited for storing hierarchical data. Its BSON (Binary JSON) format allows for efficient representation of complex structures.
What is the purpose of caching strategies in web applications?
- Adding security layers to web applications
- Designing user interfaces
- Enhancing performance and reducing server load
- Managing user authentication
Caching strategies in web applications serve the purpose of enhancing performance and reducing server load. They involve decisions on what to cache, when to expire cache, and how to handle dynamic content.
Collaborative code review is an essential feature of _______ platforms, enabling developers to provide feedback on each other's code changes.
- Code Hosting
- Continuous Integration (CI)
- Integrated Development Environment (IDE)
- Version Control System (VCS)
Collaborative code review is an essential feature of Code Hosting platforms, enabling developers to provide feedback on each other's code changes. This process helps maintain code quality and catch potential issues early.
What is normalization in the context of relational databases?
- Process of adding data to a database
- Process of deleting unnecessary data
- Process of organizing data to reduce redundancy and dependency
- Process of updating database schema
Normalization in the context of relational databases is the process of organizing data to reduce redundancy and dependency, ensuring data integrity and minimizing data anomalies.
Browser Developer Tools allow you to simulate various _______ conditions for testing purposes.
- Network
- Device
- Security
- Performance
Browser Developer Tools allow you to simulate various device conditions for testing purposes. This includes options to emulate different devices, screen sizes, and resolutions for responsive design testing.
The split() method in JavaScript is used to split a string into an array of _______.
- Characters
- Elements
- Objects
- Substrings
The split() method is used to split a string into an array of substrings based on a specified delimiter. It does not create objects, characters, or elements, but rather substrings.
Which of the following is a common testing framework used in TDD for JavaScript?
- Jasmine
- Jest
- Mocha
- Protractor
Jest is a widely used testing framework for Test-Driven Development (TDD) in JavaScript. It is known for its simplicity, speed, and built-in features like snapshot testing and mocking.
You realize that the last few commits in your Git history are incorrect and need to be removed. What command(s) would you use to accomplish this?
- git clean -f
- git rebase -i HEAD~n
- git reset --hard HEAD~n
- git revert
The correct command is git rebase -i HEAD~n, where 'n' is the number of commits you want to go back. Interactive rebase allows you to edit, remove, or squash commits before applying them.
The HTML element contains _______ information about the document.
- Content
- Metadata
- Structure
- Styling
The HTML element contains metadata information about the document, such as the title, character encoding, and links to external resources like stylesheets and scripts.