ION Group Production Analyst Interview Questions and Answers

Aptitude test
1.20 questions
2. Email writing

I hade group discussion on the topic wfh vs wfo

Q1. Email writing on particular topic
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Q1. All basic interview questions
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Q1. Basic qns were asked related to process
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Q1. Direct one to one discussion
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Q1. Case study on the managing customer
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Math + Probability
Basic Aptitude questions over two rounds.

Q1. Puzzles, Quizzes, Aptitude Questions, HR Questions
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Q2. Questions regarding what you would do in various situations, as well as guesstimates.
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General aptitude’s with basic question of reasoning

Business development case study

Quantitative reasoning questions probability, permutations combinations, data interpretation and other important topics.

Q1. Introduce yourself ,why do you want to join this particular organization, project related questions
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Round duration - 90 minutes
Round difficulty - Medium

The test consists of 3 coding questions ranging from medium to high.

Q1. 
Minimum Time To Solve The Problems
Given 'N' subjects, each containing a certain number of problems, and 'K' friends, assign subjects to friends such that each subject goes to exactly one friend, maintain...read more
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Round duration - 30-40 minutes
Round difficulty - Medium

This was a technical interview first round which was based on Machine Learning, Deep Learning, Data Structures, and other computer science fundamentals.
In Machine Learning, they asked me regarding error functions, loss functions, overfitting, techniques to overcome overfitting, underfitting and techniques to handle missing values in the dataset. The next question was coding one and the question was to find the maximum element in the array in the window of size k.( gave solution starting from bruit force to Optimized one)

Q1. 
Maximum of All Subarrays of Size K
You are provided with an array A containing N integers. Your task is to determine the maximum element in every contiguous subarray of size K as you move from left to rig...read more
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Round duration - 30-40 minutes
Round difficulty - Medium

This was my technical round 2.

Q1. 
Shortest Path in a Binary Matrix Problem Statement
Given a binary matrix of size N * M where each element is either 0 or 1, find the shortest path from a source cell to a destination cell, consisting only...read more
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Round duration - 30-40 minutes
Round difficulty - Medium

This was my technical round 3.The interviewer started with very basic maths questions like what is an eigenvalue, eigenvector, the inverse of a matrix, Does inverse exist for the rectangular matrix?
After that, he switched to the coding question
 

Q1. 
LRU Cache Design Question
Design a data structure for a Least Recently Used (LRU) cache that supports the following operations:
1. get(key) - Return the value of the key if it exists in the cache; otherw...read more
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Round duration - 30 minutes
Round difficulty - Easy

This is a cultural fitment testing round .