N+A ERP Developer Interview Questions, Process, and Tips

Q1. This was for internship. The first questions were 10 questions based on guessing output of c program
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Q2. 2 coding questions with easy to medium difficulty based on strings and mathematical knowledge
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Q1. This was a virtual interview round which had basic HR type questions.
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Q1. This was code for good hackathon
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Q1. Simple questions asked related to web forms
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Q1. Write an API to fetch the id and JSON from the client.
Ans. 
Create an API to fetch id and JSON from the client.
• Create a RESTful API endpoint that accepts requests from the client

• Use a GET request to fetch the id and JSON data from the client

• Implement error handling for invalid requests or missing data
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Q2. Find forth highest salary from List using java 8.
Ans. 
Use Java 8 stream to find the forth highest salary from a List.
• Use stream() method to convert the List to a stream.

• Use distinct() method to remove duplicates.

• Use sorted() method to sort the salaries in ascending order.

• Use skip() method to skip the first three highest salaries.

• Use findFirst() method to get the forth highest salary.
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Q1. Microservice Architecture questions
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Q2. Spring Boot Annotations
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Q1. Salary Expectation
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Q2. Basic HR questions
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Q1. Project Architecture
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Q1. Informatica tech questions
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Question Related to the DP and the Graph

Q1. Kth Max Element in a Array
Ans. 
Find the Kth maximum element in an array of strings.
• Sort the array in descending order.

• Return the element at index K-1.
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Q2. Coin Change and optimization through DP
Ans. 
Coin change problem can be solved using dynamic programming to find the minimum number of coins needed to make a certain amount of change.
• Use dynamic programming to build up solutions for smaller subproblems

• Start by initializing an array to store the minimum number of coins needed for each amount from 0 to the target amount

• Iterate through each coin denomination and update the array with the minimum number of coins need
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Q1. Project include in your Resume
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Q2. HR common question
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Two sum problem DSA fromleetcode

Q1. Event Loop, how does event loop work.
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Q2. Lib UV, explain the function of libuv
Ans. 
Libuv is a multi-platform support library with a focus on asynchronous I/O.
• Provides event loop, networking, and file system access APIs

• Supports asynchronous operations for handling I/O events efficiently

• Used in Node.js for handling non-blocking I/O operations
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Q3. Async programming in JS
Ans. 
Async programming in JS allows for non-blocking operations, improving performance and user experience.
• Use async/await to write asynchronous code in a synchronous manner

• Promises are a common way to handle asynchronous operations

• Callbacks can also be used for async programming, but can lead to callback hell

• Utilize setTimeout and setInterval for delayed and repeated tasks
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MCQ test consisting of 70 mcqs in 75 minutes from aptitude english and cs fundamentals. If cleared next paper 2 coding qs medium level

Q1. Two sum leetcode problem
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Q2. What problems you faced in your project
Ans. 
I faced challenges with integrating third-party APIs and debugging complex logic.
• Difficulty in understanding and implementing third-party APIs

• Issues with data synchronization between different systems

• Troubleshooting complex logic errors

• Managing dependencies and version conflicts

• Time constraints affecting problem-solving
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DP graphs strings it was good

Q1. Reverse a linkded list
Ans. 
Reverse a linked list by changing the direction of pointers
• Start with three pointers: current, previous, and next

• Iterate through the list, updating pointers to reverse the direction

• Return the new head of the reversed list
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Q2. Print fibonacci series
Ans. 
The Fibonacci series is a sequence of numbers where each number is the sum of the two preceding ones.
• Start with two variables initialized to 0 and 1

• Loop through desired number of iterations, adding the previous two numbers to get the next number

• Print or store each number in the series
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