Evervent Software Developer Intern Interview Questions and Answers

Dsa predict the output

One medium problem. Based on that the students are selected. And modifications in code has been asked

Q1. Coding related questions
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Mostly questions on logical aptitude

Q1. DSA questions. Reverse word of string, bubble sort, swap two variables without use of third variable
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Q2. OOPs concepts also some questions on project
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Q3. 1 puzzle (refer gfg)
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Q1. Why do you want to work at our company?
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Q2. What was the toughest challenge you have ever faced?
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Q1. Find in rotated sorted array
Ans. 
Search for a target value in a rotated sorted array.
• Use binary search to find the pivot point where the array is rotated.

• Determine which half of the array the target value lies in based on the pivot point.

• Continue binary search in the appropriate half of the array to find the target value.
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Q2. Design IMDB. how will you manage concurrent ratings
Ans. 
Design IMDB with concurrent ratings management
• Implement a locking mechanism to ensure only one user can update a rating at a time

• Use a queue system to handle multiple rating requests in an orderly manner

• Consider using distributed systems to handle high concurrency levels
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Q1. Design vehicle rental system. Api design
Ans. 
Design a vehicle rental system API
• Create endpoints for listing available vehicles, booking a vehicle, and returning a vehicle

• Include authentication and authorization mechanisms for users and admins

• Implement payment gateway integration for processing rental payments

• Include features like vehicle search, filtering, and reviews/ratings

• Consider scalability and performance optimizations for handling high traffic
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Q1. Questions related to NODEJS , PHP, Past projects, Resume
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Q2. Why Mongodb over Sql
Ans. 
MongoDB is preferred over SQL for its flexibility, scalability, and ease of use in handling unstructured data.
• MongoDB is a NoSQL database, making it easier to work with unstructured data compared to SQL.

• MongoDB is schema-less, allowing for more flexibility in data modeling and changes.

• MongoDB is horizontally scalable, making it easier to handle large amounts of data and high traffic loads.

• MongoDB's document-based data ...read more
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Q1. Promises in javascript
Ans. 
Promises in JavaScript are objects representing the eventual completion or failure of an asynchronous operation.
• Promises are used to handle asynchronous operations in JavaScript.

• They can be in one of three states: pending, fulfilled, or rejected.

• Promises can be chained using .then() to handle success and .catch() to handle errors.
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2 questions, Easy and medium based

Q1. Stacks queues and array questions
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Q1. Technical questions on projects
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Q1. How to tackle any uncertain situations? Behavioural questions
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