BarrierBreak Solutions Research Trainee Interview Questions and Answers

Round duration - 60 mins
Round difficulty - Medium

Q1. 
Railway Seat Berth Determination
Given a railway seat number represented as an integer, determine if it is a valid seat number and identify its berth type. Possible berth types include lower berth, middle...read more
Ans. 
Given a railway seat number, determine if it is valid and identify its berth type.
• Parse input integer 't' for number of test cases

• For each test case, check if seat number is valid (1 <= N <= 100)

• Identify berth type based on seat number and output the result

• Possible berth types are Lower, Middle, Upper, Side Lower, and Side Upper
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Round duration - 90 mins
Round difficulty - Hard

First they asked me to introduce myself then they started questioning on oops concept from basic to advance level such as inheritance, polymorphism, abstraction, exception handling , STL etc. Next they started questioning on data structures. They asked me the logic of “how to find the middle of a linked list”.

Q1. 
Matrix Symmetry Check
You are provided with a square matrix. Your task is to return true if the matrix is symmetric; otherwise, return false.
A symmetric matrix is characterized by its transpose being eq...read more
Ans. 
Check if a square matrix is symmetric by comparing it with its transpose.
• Iterate through the matrix and compare each element with its corresponding element in the transpose

• If any pair of elements do not match, return false immediately

• If all pairs match, return true at the end
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Combination of all topics under by aptitude

Basic java questions

Advanced java questions and DSA also

Q1. I am not shortlisted one
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If you are a fresher , then this is for you else almost no coding test for experienced candidates.

Q1. Javascript basics, Angular react general questions depends upon profile.
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Q1. They asked general questions related to some hectic situation faced in previous company / project..
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Q1. Self introduction
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Q2. Project description
Ans. 
Developed a web application for tracking personal fitness goals and progress.
• Used React.js for front-end development

• Implemented RESTful APIs for data retrieval and storage

• Utilized MongoDB for database management
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Q1. Questions on project
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Q2. Any problems faced
Ans. 
Yes, faced challenges with debugging complex code and integrating third-party APIs.
• Debugging complex code with multiple dependencies

• Integrating third-party APIs with inconsistent documentation

• Resolving compatibility issues between different software components
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Q1. They asked general questions related to some hectic situation faced in previous company / project..
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Genral aptitude questions

Q1. Be prepared with your basics
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Q2. Languages and work flow
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Q3. Be aware what you keep in your resume
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Q4. Be strong in a area
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Very easy basic logical questions

Easy level array string questions

2 questions asked should give optimized approach

Just plain leetcode medium questions