VM EDULife Interview Questions and Answers

Q1. Questions were regarding past experience and qualification
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Q1. About qualification, experience, etc.
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Q1. Sdlc lifecycle of components and architecture.
Ans. 
SDLC lifecycle involves planning, designing, developing, testing, deploying, and maintaining software components and architecture.
• SDLC (Software Development Life Cycle) includes phases like planning, designing, coding, testing, and maintenance.

• Components are designed, developed, tested, and integrated into the overall architecture.

• Architecture involves defining the structure, behavior, and interactions of software comp...read more
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Q1. Role and responsibility my tasks and questions on project
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Round duration - 120 minutes
Round difficulty - Easy

It was a mix of mathematical aptitude, logical ability, and puzzles along with 2 programming questions of easy and medium level. Time was enough and no sectional time was present. 1-2 MCQs on SQL were also present.

This round was immediately followed by an SHL aptitude test which was basically a quick limited time check of your verbal ability and math because many questions were to be done in 1 hour.

Q1. 
Boolean Matrix Transformation Challenge
Given a 2-dimensional boolean matrix mat of size N x M, your task is to modify the matrix such that if any element is 1, set its entire row and column to 1. Specifi...read more
Ans. 
Modify a boolean matrix such that if any element is 1, set its entire row and column to 1.
• Iterate through the matrix and mark rows and columns to be modified

• Use additional arrays to keep track of rows and columns to be modified

• Update the matrix in-place based on the marked rows and columns
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Round duration - 60 minutes
Round difficulty - Easy

It was an online video interview round on HackerEarth with simultaneous code option. It was mostly justifying your resume in the first 15 minutes. After that OOPS was majorly asked. Basics of programming including questions on STL were asked. A class which required inheritance was asked by the interviewer to write. I was helped by the interviewer if i got stuck somewhere, Some questions on implementation of hashmaps and priority queues were also asked. A puzzle was asked which luckily struct to me at that moment.

Q1. Basics of js and react
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Q2. What are closures and give an example
Ans. 
Closures are functions that have access to variables from their outer scope even after the outer function has finished executing.
• Closures are created when a function is defined within another function and has access to the outer function's variables.

• They can access variables from the outer function even after the outer function has returned.

• Closures are commonly used in event handlers and callbacks in JavaScript.
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Q3. What is event loop and features of es5
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Event loop is a mechanism that allows JavaScript to perform non-blocking operations by handling asynchronous events.
• Event loop is responsible for executing code, collecting and processing events, and executing queued sub-tasks.

• ES5 features include strict mode, JSON object, Array methods like forEach, map, filter, and reduce, and Object.create method.

• ES5 also introduced new methods for manipulating strings, such as trim
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Q1. General management round and past experience
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Q1. Asked about my reasons to enter into a non core job and if I have any relevant skills/interests
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Q1. Asked on my academics and changes I would like to bring in Education sector
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Q1. Asked about the Statistics concepts hypothesis,pvalue,mean,meadian.mode,normaldistrubution?
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Q2. Sql joins questions based on three tables, complex joins
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