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Uber App can be designed using AWS infra by leveraging services like EC2, S3, Lambda, API Gateway, RDS, and DynamoDB.
Use EC2 instances to host the backend services and databases.
Store user data and media files in S3 buckets.
Utilize Lambda functions for serverless computing and event-driven architecture.
Expose APIs through API Gateway for communication between different components.
Use RDS for relational database managem
Top trending discussions
posted on 27 Nov 2024
Invert a binary tree
posted on 8 Apr 2024
I applied via Naukri.com and was interviewed before Apr 2023. There was 1 interview round.
A low level diagram is a detailed representation of a system's components and their interactions.
Low level diagrams show the specific details of how components interact within a system
They often include detailed information such as data flow, control flow, and dependencies
Examples include UML diagrams, network diagrams, and flowcharts
I applied via Naukri.com and was interviewed in Apr 2024. There were 3 interview rounds.
Basic knowledge of the candidates
Program out put and input question
Giveing a situation and ask for the results
I applied via Naukri.com and was interviewed before Jan 2023. There were 3 interview rounds.
I applied via Approached by Company and was interviewed before Nov 2023. There was 1 interview round.
OOPs concepts are fundamental principles in object-oriented programming, including inheritance, encapsulation, polymorphism, and abstraction.
Inheritance: Allows a class to inherit properties and behavior from another class.
Encapsulation: Bundling data and methods that operate on the data into a single unit.
Polymorphism: Ability to present the same interface for different data types.
Abstraction: Hiding the complex imple...
React has three main phases in its lifecycle: mounting, updating, and unmounting.
Mounting: when a component is created and inserted into the DOM
Updating: when a component is updated due to changes in props or state
Unmounting: when a component is removed from the DOM
Lifecycle methods can be used to perform actions at each phase, such as componentDidMount() or componentWillUnmount()
React also has error handling methods,
Strict mode is a way to write secure and optimized JavaScript code.
Enables catching of silent errors
Disallows duplicate property names or parameters
Prevents use of undeclared variables
Makes `eval()` safer to use
Throws errors on invalid usage of `this` keyword
CURD operations along with implementation of a mock UI
I applied via LinkedIn and was interviewed before Jan 2024. There were 4 interview rounds.
Hackerrank test with medium level questions
Medium level two questions. Focus of optimising.
I am excited to join Company because of its innovative projects, collaborative team, and opportunities for growth.
Innovative projects: Company is known for pushing boundaries and working on cutting-edge technologies.
Collaborative team: I value teamwork and believe that the collaborative environment at Company will help me thrive.
Opportunities for growth: Company offers various learning and development opportunities to
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