Profound Edutech Java Developer Interview Questions and Answers

Q1. Basic question of javascript like temporal dead zone, hoisting
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Q2. Basic of sql and mongo
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Q1. Logic bluiding question
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Q2. 2 leet code quesztion
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Q1. Slaray negotiation
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Explain about DSA and its example in realtime.

Question on Linked list. array and string manipulation.

Q1. Tell me about your project?
Ans. 
Developed a web application for tracking personal fitness goals and progress.
• Used React.js for front-end development

• Implemented RESTful APIs using Node.js and Express for back-end functionality

• Utilized MongoDB for database management
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Q2. What is useState, useEffect, useRedux?
Ans. 
useState, useEffect, useRedux are hooks in React for managing state and side effects.
• useState is a hook used for managing state in functional components.

• useEffect is a hook used for handling side effects in functional components.

• useRedux is not a built-in hook, but a common convention for using Redux with React.
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Q3. Tell me the changes too place in 2015 EcMascript?
Ans. 
In 2015, EcmaScript 6 (ES6) was released with significant updates and new features.
• Introduction of let and const for block-scoped variables

• Arrow functions for more concise syntax

• Classes for object-oriented programming

• Template literals for string interpolation

• Enhanced object literals and destructuring assignments
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Q4. Explain the flow about how API works?
Ans. 
API works by allowing different software applications to communicate with each other through a set of rules and protocols.
• API receives a request from a client application

• API processes the request and interacts with the server

• API sends back a response to the client application

• Examples: REST API, SOAP API
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Q1. Data structures
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Q1. System Design fundamentals
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Q1. System Design questions
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Q1. What do you think about the negative news going around the company
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Q1. Why join this company
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1 OA round followed by DSA questions , MCQ on development

2 After clearing OA , A assignment was given on FULL stack and you have to complete it within 2 days process.

3 coding question around prime number arrays and strings

Q1. Introduce youself
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Q2. Question around project and skill in the resume and one coding question to solve
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Q1. Question on project and skill in resume
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Q2. 2 question arouond data structer and algorithm
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Round duration - 50 minutes
Round difficulty - Easy

Mcq Questions

Q1. Aptitude Questions
Percentages.
Number Series.
Arithmetic Aptitude.
Profit and Loss.
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Round duration - 10 Minutes
Round difficulty - Easy

It was very difficult they go in depth of everything

Q1. Binary Tree To BST
You have been given a binary tree consisting of ‘N’ nodes where nodes have distinct integer values. Your task is to convert the given Binary Tree to a Binary Search Tree(BST).
Note: Th...read more
Ans. Inorder Traversal
We will use the fact that the inorder traversal of BST is sorted.
 
Here is the algorithm:
1. We will traverse the given tree and store the data value of nodes in the array/list.
2. Now, sort the array in increasing order.
3. Traverse the tree again, but now in an inorder fashion, and put back the values present in the array(in sorted order) to their correct position in the required BST.
Space Complexity: O(n)Ex...read more
Answered by CodingNinjas
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