IDEMIA NPD Engineer Interview Questions and Answers for Experienced

Q1. Salary expectation .
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Q2. Why should I hire you?
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Q1. Mendix Advanced questions.
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Q2. Everything which you mentioned in your resume.
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Round duration - 30. minutes
Round difficulty - Easy

It was in the evening, question were moderate

Q1. 
Count Subsequences Problem Statement
Given an integer array ARR of size N, your task is to find the total number of subsequences in which all elements are equal.
Explanation:
A subsequence of an array i...read more
Ans. 
Count the total number of subsequences in which all elements are equal in an integer array.
• Iterate through the array and count the frequency of each element.

• Calculate the total number of subsequences for each element using the formula (frequency * (frequency + 1) / 2).

• Sum up the total number of subsequences for all elements and return the result modulo 10^9 + 7.
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Round duration - 30 minutes
Round difficulty - Easy

It was in the night around 9:00 PM.

Q1. 
Pair Sum Problem Statement
You are given an integer array 'ARR' of size 'N' and an integer 'S'. Your task is to find and return a list of all pairs of elements where each sum of a pair equals 'S'.
Note:
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Ans. 
Given an array and a target sum, find all pairs of elements that add up to the target sum.
• Iterate through the array and for each element, check if the complement (target sum - current element) exists in a hash set.

• If the complement exists, add the pair to the result list.

• Sort the pairs based on the first element and then the second element.

• Return the list of pairs as the final result.
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It was aptitude and technical MCQ questions round

Q1. Technical interview- regarding skills mentioned in resume and projects
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Q2. In same round hr interview was done
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2 coding questions one was greedy and 2nd one was of dp.

Assigned data analysis project

Q1. Tell me about your self
Ans. 
I am a passionate software engineer with experience in developing web applications using various technologies.
• Experienced in developing web applications using HTML, CSS, JavaScript, and frameworks like React and Angular

• Proficient in backend development with Node.js and databases like MongoDB and MySQL

• Familiar with version control systems like Git and project management tools like Jira
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Q2. Tell abt the projects
Ans. 
Developed a web application for tracking inventory and sales data
• Used React.js for front-end development

• Implemented RESTful APIs using Node.js and Express

• Utilized MongoDB for database management
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