Gupshup Senior Software QA Engineer Interview Questions and Answers

Java internals, coding questions 2sum

Q1. Hld of your previous project
Ans. 
Developed a web-based project management tool for tracking tasks and deadlines.
• Used React.js for front-end development

• Implemented RESTful APIs for backend using Node.js and Express

• Utilized MongoDB for database storage

• Incorporated authentication and authorization features for user security
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Q2. Question related to self build projects
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Q1. Salary negotiation
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Q2. Location constrain if any
Ans. 
Open to relocation for the right opportunity
• Willing to relocate for the right job opportunity

• Flexible with location for the right role

• Open to considering different locations for the right position
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Q1. They asked to design a database table
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Q1. Move negative elements to right side of array
Ans. 
Move negative elements to right side of array
• Iterate through the array and swap negative elements to the right side

• Use two pointers approach to keep track of positive and negative elements

• Maintain the order of elements while moving negatives to the right side
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Medium to hard questions based on arrays, dp

Q1. Quick sort algorithm
Ans. 
Quick sort is a popular sorting algorithm that uses divide and conquer strategy.
• Divides array into smaller sub-arrays based on a pivot element

• Recursively sorts sub-arrays

• Combines sorted sub-arrays to get final sorted array

• Time complexity: O(n log n) on average, O(n^2) worst case

• Example: [3, 6, 8, 10, 1, 2, 1] -> [1, 1, 2, 3, 6, 8, 10]
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Q2. Modified rotate a matrix
Ans. 
Rotate a matrix by 90 degrees in place
• Transpose the matrix

• Reverse each row of the transposed matrix
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Q1. Java script, React JS
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Q2. Data structures and algorithms
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Q1. They simply ask what you are doing
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Q2. How much you used skill in current project
Ans. 
I utilized my skills extensively in the current project, contributing to its success.
• I applied my knowledge of programming languages such as Java and Python to develop new features.

• I used my problem-solving skills to troubleshoot and resolve technical issues efficiently.

• I leveraged my experience with database management to optimize data storage and retrieval processes.
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Q1. Anything they ask even very old versions
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Q1. Where u from and check attitude
Ans. 
I am from XYZ city. My attitude is positive and professional.
• I am from XYZ city

• My attitude is positive and professional
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Q2. Can you join immediately
Ans. 
Yes, I can join immediately.
• Yes, I am available to start right away.

• I have no prior commitments that would prevent me from starting immediately.

• I am excited about the opportunity and ready to hit the ground running.
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Q1. Questions on OOPS, Core Concepts of C#, SQL
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Q1. Questions on System Design and tricky questions on OOPS
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Q1. Previous organization work culture and expectations
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It was the ask mostly about DSA