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.
_______ preloading is a technique used to fetch critical resources in advance to reduce latency during page load.
- Content
- Image
- Resource
- Resourceful
Resource preloading involves fetching essential assets like images, scripts, and stylesheets before they are actually needed. This minimizes latency during page load, enhancing user experience.
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).
What are some common challenges faced during the code review process, and how can they be mitigated effectively?
- Difficulty in providing constructive feedback
- Lack of clear coding standards
- Overemphasis on personal preferences
- Time constraints and code reviewer fatigue
Common challenges in code reviews include time constraints and fatigue. To mitigate, setting clear coding standards, avoiding personal biases, and providing constructive feedback can enhance the effectiveness of the code review process.
Which Git command is used to view the branches that have been merged into the current branch?
- git branch
- git branch --merged
- git log
- git merge
The git branch --merged command is used to view the branches that have been merged into the current branch. It helps identify which branches are safe to delete after merging.
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.