One of the benefits of code review is _______ , which helps team members understand different parts of the codebase.
- Bug fixing
- Code duplication
- Knowledge sharing
- Performance optimization
One of the benefits of code review is knowledge sharing, which helps team members understand different parts of the codebase. During code reviews, team members learn from each other's approaches and techniques, leading to better collaboration and understanding of the project.
The parseInt() function in JavaScript is used to convert a string to an _______.
- Array
- Float
- Integer
- Object
The parseInt() function in JavaScript is used to convert a string to an integer. It parses a string and returns an integer.
What does CI/CD stand for?
- Code Integration/Continuous Delivery
- Code Iteration/Continuous Deployment
- Continuous Inspection/Continuous Deployment
- Continuous Integration/Continuous Deployment
CI/CD stands for Continuous Integration/Continuous Deployment. It is a set of practices that involve automatically integrating code changes and deploying them to production environments.
In a project, you need to efficiently find the top 5 most frequent elements in a large dataset. Which data structure and algorithm combination would you use?
- Binary Search Tree (BST)
- Hash Map with Heap
- QuickSort Algorithm
- Trie Data Structure
Using a Hash Map to track element frequencies and a Heap to efficiently find the top elements is a common approach. This combination allows constant-time lookup and log-linear time complexity for maintaining and extracting the most frequent elements.
_______ is the process of creating a new class from an existing class in OOP.
- Abstraction
- Encapsulation
- Inheritance
- Polymorphism
Inheritance is the process of creating a new class from an existing class in OOP. It allows a new class (subclass or derived class) to inherit the properties and behavior of an existing class (superclass or base class).
In Google Cloud Platform, what service is used for big data analytics?
- BigQuery
- Cloud Storage
- Datastore
- Pub/Sub
BigQuery is the Google Cloud Platform service specifically designed for big data analytics. It enables super-fast SQL queries using the processing power of Google's infrastructure, making it suitable for analyzing large datasets.
What feature of collaboration tools allows multiple developers to work on the same codebase simultaneously without interfering with each other's changes?
- Version Control
- Code Dependency
- Code Synchronization
- Collaboration Sync
The correct option is Version Control. Version control systems, such as Git, enable multiple developers to work on the same codebase concurrently by managing changes, merging edits, and maintaining a version history. This ensures seamless collaboration without conflicts.
In Gitflow, the _______ branch is created from the master branch for emergency fixes.
- develop
- feature
- hotfix
- release
In Gitflow, the hotfix branch is created from the master branch for emergency fixes. Hotfixes are used to address critical issues in the production environment directly.
In a distributed database system, what challenges might arise in terms of consistency, and how would you address them?
- Consistency models
- Distributed transactions
- Eventual consistency
- Strong consistency
Challenges in consistency in distributed systems can be addressed through techniques like distributed transactions, ensuring data consistency across multiple nodes.
Granular recovery allows for the restoration of _______ components rather than the entire system.
- Fine-grained
- Individual
- Particular
- Specific
Granular recovery enables the restoration of specific components or data points, offering a more fine-grained approach instead of restoring the entire system. This is useful for targeted recovery needs.