What is the purpose of the FOREIGN KEY constraint in a relational database?
- Concatenates columns
- Defines a primary key
- Ensures referential integrity
- Limits the number of rows
The FOREIGN KEY constraint in a relational database is used to ensure referential integrity between two tables. It establishes a link between the data in two tables, ensuring that relationships between them are maintained.
Infrastructure as Code allows infrastructure to be managed using _______.
- Automation
- Code
- Configuration
- Scripts
Infrastructure as Code (IaC) allows infrastructure to be managed using scripts. These scripts define the desired state of the infrastructure, enabling automated provisioning and configuration.
Python's extensive standard library and simplicity make it an ideal choice for _______ development.
- Data Science
- Game
- Mobile
- Web
Python's extensive standard library and simplicity make it an ideal choice for Data Science development. Python has rich libraries for data manipulation and analysis.
How does Git handle conflicts when merging two branches with changes to the same line of code?
- Automatic Merge
- Branch Deactivation
- Manual Resolution
- Priority Given to Latest Commit
Git handles conflicts by marking them, and it's the developer's responsibility to resolve them manually. This ensures that the developer reviews and approves the changes, preventing unintended modifications.
What does HTTPS stand for in the context of web security?
- Hyper Transfer Protocol Security
- Hyperlink and Text Protocol Secure
- Hypertext Transfer Protocol Secure
- Hypertext Transmission Protocol Security
HTTPS stands for Hypertext Transfer Protocol Secure. It is a secure version of HTTP, ensuring the encrypted transmission of data between a user's web browser and the server. This encryption enhances security and protects sensitive information during data transfer.
In query optimization, denormalization can sometimes be used to reduce _______.
- Complexity
- Dependency
- Normalization
- Redundancy
In query optimization, denormalization can sometimes be used to reduce redundancy. Denormalization involves intentionally introducing redundancy to improve query performance by minimizing joins and simplifying data retrieval.
What are some common strategies for resolving merge conflicts in Git?
- Ignore conflicts and proceed with the merge
- Manually edit the conflicting files
- Use git merge --continue
- Use git mergetool
Common strategies for resolving merge conflicts in Git include manually editing the conflicting files. This involves reviewing the conflicting sections, resolving differences, and then committing the changes.
Which JavaScript framework is known for its simplicity and ease of integration into existing projects?
- Angular
- Ember.js
- React
- Vue.js
Vue.js is a JavaScript framework known for its simplicity and ease of integration into existing projects. It is designed to be incrementally adaptable, making it easy to pick up and use.
Which programming paradigm does OOP primarily follow?
- Declarative Programming
- Functional Programming
- Object-Oriented Programming
- Procedural Programming
Object-Oriented Programming (OOP) primarily follows the Object-Oriented Programming paradigm. This paradigm emphasizes the use of objects, which encapsulate data and behavior, to design and structure code.
________ allows developers to create and manage issues, track progress, and prioritize tasks within a project.
- Continuous Integration (CI)
- Integrated Development Environment (IDE)
- Project Management Tool
- Version Control System (VCS)
A Project Management Tool allows developers to create and manage issues, track progress, and prioritize tasks within a project. It facilitates collaboration and organization in software development projects.