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).
GitHub Flow emphasizes continuous _______ as a best practice.
- delivery
- deployment
- integration
- testing
GitHub Flow emphasizes continuous delivery as a best practice. This means that changes should be deployable at any time, ensuring a smooth and reliable delivery process.
CAP theorem states that in distributed data stores, it's impossible to simultaneously provide more than two out of three guarantees: _______ consistency, _______ availability, and _______ tolerance.
- Consistent, Available, Partition
- Consistent, Reliable, Partition
- Causal, Available, Persistent
- Consistent, Available, Tolerant
CAP theorem asserts that in a distributed system, it's impossible to achieve all three of Consistency, Availability, and Partition Tolerance simultaneously. The correct options are Consistent, Available, and Partition Tolerance.
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.
What command is used to create a new branch in Git?
- git branch new-branch
- git checkout -b new-branch
- git create branch new-branch
- git new-branch
The correct command to create a new branch in Git is git checkout -b new-branch. This command creates a new branch and switches to it in one step.