Iron Systems Project Coordinator Interview Questions and Answers

Q1. 1. C basics 2. Bitwise operators 3. Pointers 4. Embedded protocols 5. Linux Commands
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Q1. Javascript / UI related
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SYSTEM Design

It's a one hour coding test which tests basic problem solving skills.

Q1. In this round interviewer tests your problem solving skills, you will be given a link to a coding platform and will be asked to solve couple of problems (1- easy, 2- medium). Approach will be considered ra...read more
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Q1. This will test your technical skills for the domain you have been shortlisted for
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Q1. It's kind of a behavioural round which targets your previous experiences and your exposure
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Quite easy, implementation questions were there

Q1. Implement Hash Maps
Ans. 
Hash maps are data structures that store key-value pairs and provide efficient lookup, insertion, and deletion operations.
• Hash maps use a hash function to convert keys into array indices.

• Collisions can occur when multiple keys hash to the same index, requiring collision resolution techniques.

• Common collision resolution methods include chaining and open addressing.

• Hash maps have an average time complexity of O(1) for ba...read more
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3 coding questions; 1 was of Trie, 1 was greedy and another was related to OOPs, and high level data structures

Q1. Based on resume, technical skills.
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Q1. Again Technical skills and CS subjects knowledge
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Q1. Questions around software design
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Questions regarding JS concepts. JS and React specific rounds, closures, Promises, etc

Q1. Solve a js problem to traverse a directory. Simple question
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Q1. Managerial round to understand roles and responsibilities in previous orgs.
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Round duration - 60 Minutes
Round difficulty - Medium

Online test

Q1. MCQ Questions
Based on c++,c and java basics
Ans. 
MCQ questions based on C++, C, and Java basics.
• Understand the differences between C++, C, and Java syntax and features.

• Be familiar with basic concepts like data types, control structures, and functions.

• Practice solving MCQs to improve your understanding of the languages.
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Round duration - 150 Minutes
Round difficulty - Medium

Technical interview

Q1. 
Distinct Elements in K-Sized Windows
The task is to determine the number of distinct elements in every sliding window of size 'K' across an array 'ARR' of size 'N'. A 'K' sized window is a contiguous sequ...read more
Ans. 
Calculate the count of distinct elements in each sliding window of size 'K' across an array 'ARR'.
• Use a sliding window approach to iterate through the array and keep track of distinct elements using a hashmap or set.

• Update the count of distinct elements in each window as it slides across the array.

• Return the array detailing the count of distinct elements in each 'K' sized window for each test case.
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Q2. 
MergeSort Linked List Problem Statement
You are given a Singly Linked List of integers. Your task is to sort the list using the 'Merge Sort' algorithm.
Input:
The input consists of a single line contain...read more
Ans. 
Sort a Singly Linked List using Merge Sort algorithm.
• Implement the Merge Sort algorithm for linked lists.

• Divide the list into two halves, sort each half recursively, and then merge them.

• Use a fast and slow pointer to find the middle of the list for splitting.

• Handle the base cases of empty list or single node list.

• Example: Input: 4 3 2 1 -1, Output: 1 2 3 4
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Round duration - 20 minutes
Round difficulty - Hard

Hr interview