Flipshope.com Mern Stack Developer Interview Questions and Answers

It's api round. We have to develop an api and frontend

It's contains 2 coding question and 20 mcqs

Q1. Introduction about your self
Ans. 
I am a Full Stack Software Developer with 5 years of experience in building web applications.
• 5 years of experience in full stack development

• Proficient in languages like JavaScript, HTML, CSS, and frameworks like React and Node.js

• Strong problem-solving skills and ability to work in a team environment
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Q2. What is polling in ca
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Polling in computer science is a technique used to actively check the status of a resource or process at regular intervals.
• Polling involves continuously checking a resource or process for updates or changes.

• It is commonly used in web development to update content on a webpage without refreshing the entire page.

• Polling can be synchronous or asynchronous, depending on the implementation.

• Examples of polling include checki...read more
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Q1. What technologies you worked with in your last internship
Ans. 
I worked with technologies such as React, Node.js, MongoDB, and AWS in my last internship.
• React

• Node.js

• MongoDB

• AWS
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Q2. Related to pandas in Python
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Q3. Linux commands question
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Q1. Project you worked on
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Q2. React and Spring
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Asked about the resume and more technical questions about APIS

Q1. Asked technical questions about their requirements skill set
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Karet coding evaluation platform is used

Q1. Technical + coding assessment was there
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Q2. Find max continous sub array with unique elements in an array
Ans. 
Find max continous sub array with unique elements in an array
• Use sliding window approach

• Keep track of unique elements in the window

• Update max length when a duplicate element is found
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Q1. Pure Technical round
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Q1. Typical Managerial round
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Q1. Payscale discussion round
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Q1. Why microservices?
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Microservices offer scalability, flexibility, and easier maintenance in software development.
• Scalability: Microservices allow for individual components to be scaled independently, leading to better resource utilization.

• Flexibility: Microservices enable teams to work on different services simultaneously, promoting faster development and deployment.

• Easier maintenance: With microservices, it's easier to identify and fix i...read more
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Q2. Why you went for microservices in your application
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Q3. Mention about the design patterns you worked so far
Ans. 
I have worked with various design patterns such as Singleton, Factory, Observer, and MVC.
• Implemented Singleton pattern to ensure only one instance of a class exists

• Utilized Factory pattern to create objects without specifying the exact class

• Implemented Observer pattern to establish a one-to-many dependency between objects

• Utilized MVC pattern to separate the concerns of data, presentation, and user input
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There are 30 questions Mixed with Aptitude, AWS, OS

Q1. 1. what is OOPS Concept?
Ans. 
OOPS (Object-Oriented Programming) is a programming paradigm that uses objects to represent and manipulate data.
• OOPS focuses on the concept of objects, which are instances of classes.

• It emphasizes encapsulation, inheritance, and polymorphism.

• Encapsulation ensures data hiding and abstraction.

• Inheritance allows classes to inherit properties and behaviors from other classes.

• Polymorphism enables objects to take on multiple...read more
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Q2. Database questions and data structure questions?
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