VassarLabs Full Stack Software Developer Interview Questions and Answers

Q1. I applied online for the post of software developer, interview was conducted by First IPO on behalf of Mindtree.
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Q2. Basics of OOPs, program o find out prime number, basic coding problem asks for output, closure, arrays in JavaScript
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Because it's so easy And because of that I have prepared for it

Because it's so easy and become of that I have prepared for it

Q1. Because it's so easy and become of that I have prepared for it
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Q2. Your self.how to prepare on this exam
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Q3. What are your strengths? How do you think they will be an advantage for this position?
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Q4. Do you have good time management skills? Tell me how you use them on a typical day.
Ans. 
Yes, I have good time management skills.
• I prioritize my tasks based on their urgency and importance.

• I use a to-do list to keep track of my tasks and deadlines.

• I break down larger tasks into smaller, manageable chunks.

• I try to minimize distractions and stay focused on the task at hand.

• I regularly review my progress and adjust my schedule as needed.
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Q5. Do you have any hobbies? What are the things you enjoy doing the most?
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Q6. What do you consider to be a good work ethic?
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Q7. Would you call yourself a team player?
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Q1. What is closures in JS ?
Ans. 
Closures in JavaScript 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 inside another function.

• The inner function has access to the outer function's variables, parameters, and even the outer function's return value.

• Closures are useful for creating private variables and data encapsulation.

• They can be ...read more
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Q2. Diff props and state ?
Ans. 
Props and state are both used in React to manage and pass data, but they have different purposes and behaviors.
• Props are read-only and passed from parent components to child components.

• State is mutable and managed within a component.

• Props are used to pass data from a parent component to a child component.

• State is used to manage and update data within a component.

• Props are passed as attributes to a component in JSX.

• Stat...read more
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Q3. How to optimise the performance ?
Ans. 
Performance optimization involves identifying and resolving bottlenecks to improve the efficiency of software.
• Identify and analyze performance bottlenecks

• Optimize algorithms and data structures

• Improve database performance through indexing and query optimization

• Use caching techniques to reduce database and network calls

• Minimize network latency by optimizing network requests

• Optimize front-end code by reducing DOM manipul...read more
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Q4. Diff between class based or function based component ?
Ans. 
Class-based components are ES6 classes that extend React.Component, while function-based components are functions that return JSX.
• Class-based components are more feature-rich and have access to lifecycle methods.

• Function-based components are simpler and easier to read and test.

• Class-based components can have state and use lifecycle methods like componentDidMount and componentDidUpdate.

• Function-based components can use ...read more
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Q5. What is es6 features ?
Ans. 
ES6 (ECMAScript 2015) introduced several new features to JavaScript, enhancing its functionality and making it more efficient.
• Arrow functions: concise syntax for writing functions

• Let and const: block-scoped variables

• Template literals: easier string interpolation

• Destructuring assignment: extracting values from arrays or objects

• Spread syntax: expanding elements in arrays or objects

• Classes: syntactical sugar for creating ...read more
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Oops concept, basic javascript and react js coding question

Q1. React js and asp.net basic interview questions
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General aptitude, computer science fundamentals multiple-choice questions, and data structures and algorithms multiple-choice questions were asked.

Q1. Given a string, write a function to reverse the string.
Ans. 
Function to reverse a given string
• Create an empty string to store the reversed string

• Iterate through the input string in reverse order and append each character to the new string

• Return the reversed string
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Q2. Given a sorted array of integers, write a function to perform a binary search to find the index of a target value. If the target value is not found, return -1.
Ans. 
Binary search function to find target value in sorted array
• Define function that takes sorted array and target value as input

• Initialize variables for start, end, and middle indices

• Use while loop to iterate until start is less than or equal to end
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Q1. About the company
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Q2. What are three significant achievements in your life?
Ans. 
Graduating with honors, winning a hackathon, volunteering in a developing country
• Graduated with honors from university with a degree in Computer Science

• Won first place in a hackathon competition by developing a unique and innovative software solution

• Volunteered in a developing country to help build schools and provide education to underprivileged children
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Q1. Basic questions about javascript
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Q2. Basic questions about nodejs
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