Prokarma Technologies Software Engineer Trainee Interview Questions and Answers

Mostly Aptitude, Reasoning,Verbal in the round-1 with 60 questions

2 programming questions - you can select which language u are comfortable

Q1. It's purely based on your resume, so which language u are comfortable they can prefer to ask that's the thing
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First round was GD1 - We were given a Topic of Democracy in India and have 5 mins to think on it..

Second round was GD2 - here, the Topic was "if you could have a superpower for one day what superpower you will choose" and we have to talk on this topic for 5 mins

Q1. Four pillars of OOPS with real world examples
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Q2. Solve Rotate Array Problem
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Q3. 8-10 questions asked on my Programming language (C++)
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Q1. Question asked on Final year project - what's your Contribution in the project
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Q2. Explain your Final year project
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Q3. Some logical question and puzzles
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Q4. There was alphanumeric characters and we have to output only the number from that string Input - "wih562idjedk42ndej56" Output - 5624256
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Q1. As a team Leader, how you manage all your team members when there is a conflict or disagreement arise in the project
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Q2. Some , Behavioural questions
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Q1. Asked to write a program to check whether string is valid or not. String consists of only three kind of special characters "(), [], {}". We need to return true if all special characters are in correct for...read more
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Q2. What is useRef hook used for?
Ans. 
useRef hook is used to persist a mutable value across renders without causing a re-render.
• Used to store mutable values that do not trigger re-renders.

• Commonly used for accessing DOM elements or storing previous values.

• Does not cause a re-render when the value changes.
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Q3. What are the best practices to avoid rerenders and to improve performance
Ans. 
Use memoization, virtual DOM, and shouldComponentUpdate to avoid unnecessary rerenders and improve performance.
• Implement memoization to store the result of expensive function calls and avoid recalculating them.

• Use virtual DOM to efficiently update only the parts of the UI that have changed.

• Override shouldComponentUpdate to prevent unnecessary rerenders by comparing current and next props/state.
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Q4. What are callbacks, Promises, async await
Ans. 
Callbacks, Promises, async await are asynchronous programming concepts in JavaScript.
• Callbacks are functions passed as arguments to another function to be executed later.

• Promises are objects representing the eventual completion or failure of an asynchronous operation.

• async await is a syntax for writing asynchronous code that looks synchronous, making it easier to read and maintain.

• Example: Using a callback to handle th...read more
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Write word count program

Q1. Architecture of Spark
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Q2. What is AWS Glue job
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They presented me with a challenging question related to a graph.(level is too hard)

Q1. Anagram question
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Q2. Sql join questions
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Explain about DSA and its example in realtime.

Question on Linked list. array and string manipulation.