QuickRide Trainee Interview Questions and Answers

Q1. DP related problems.
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Q2. Networking related questions
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Q1. Let var const difference
Ans. 
var, let, and const are all used to declare variables in JavaScript, but they have different scopes and mutability.
• var is function-scoped and can be redeclared and reassigned

• let is block-scoped and can be reassigned but not redeclared

• const is block-scoped and cannot be reassigned or redeclared
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Q2. Polyfills of bind method
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Polyfills of bind method provide a way to use the bind method in older browsers that do not support it natively.
• Polyfill code typically checks if the bind method is available and if not, it creates a new function that mimics the behavior of bind.

• One common polyfill for the bind method is the following: Function.prototype.bind = Function.prototype.bind || function() { // polyfill code here };

• Polyfills are often used to ...read more
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Q1. Make a search bar in React
Ans. 
Create a search bar component in React for filtering data
• Create a functional component for the search bar

• Use state to store the search query

• Implement a onChange event handler to update the search query

• Filter the data based on the search query
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Q2. React js core concepts
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Q1. How you structure your work
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Q2. How you make a project from scratch
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Q1. Like or dislike
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Q2. What are you thinking
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Q1. How I have planned my career.
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Q2. How I have started my journey towards business analyst
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Q1. Architecture of current project
Ans. 
The current project follows a microservices architecture with Docker containers for scalability and flexibility.
• Microservices architecture is used to break down the application into smaller, independent services that can be developed, deployed, and scaled independently.

• Docker containers are utilized for packaging the application and its dependencies into a standardized unit for easy deployment and management.

• Service di...read more
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Q2. Spring and Hibernate questions
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Basic coding questions

Q1. Largest island (graph question)
Ans. 
Find the largest connected component in a grid representing islands using graph traversal techniques.
• Use Depth-First Search (DFS) or Breadth-First Search (BFS) to explore the grid.

• Count the size of each island by marking visited cells.

• Example: In a 2D grid, '1' represents land and '0' represents water.

• Keep track of the maximum size encountered during traversal.
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Q2. SQL question related to joins
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Q1. About the databases and questions from system design
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Q1. Questions based on concurrency , suitable databases HLD,LLD,book my show design
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Q1. Salary discussion
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Q1. DATA STRUCTURES , SYSTEM DESIGN
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Q2. ALGORITHM , LLD
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Dsa. , oops and basics of database management

Q1. System design questions basics
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Q2. Hiring managers questions
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