Microland Java Full Stack Developer Interview Questions and Answers

Q1. Difference between authentication and authorization
Ans. 
Authentication verifies the identity of a user, while authorization determines what a user can access.
• Authentication confirms the user's identity through credentials like passwords or biometrics

• Authorization controls the user's access to resources or features based on their identity and permissions

• Example: Logging into a website with a username and password is authentication, while being able to view/edit specific page
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Q2. What is promises
Ans. 
Promises are objects representing the eventual completion or failure of an asynchronous operation.
• Promises are used to handle asynchronous operations in JavaScript.

• They can be in one of three states: pending, fulfilled, or rejected.

• Promises can be chained using .then() to handle success and .catch() to handle errors.
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Q3. What is rxjs and its uses
Ans. 
RxJS is a library for reactive programming using Observables to handle asynchronous data streams.
• RxJS stands for Reactive Extensions for JavaScript.

• It allows you to work with asynchronous data streams and handle events.

• RxJS provides operators to transform, filter, combine, and create observables.

• Example: Using RxJS to handle user input events in a web application.
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Q1. About HTML, CSS, JS, Python ?
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Q2. What is Self Keyword in python?
Ans. 
The self keyword in Python is a reference to the current instance of a class.
• Self is the first parameter in the definition of instance methods within a class.

• It is used to access variables and methods within the class.

• Self is not a reserved keyword in Python, but it is a convention to use self as the first parameter in instance methods.
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Q1. They Not Schedule Client Interview
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Topics consist of profit-loss, probability, permutation combination etc.

Coding question related to topics array and strings.

Q1. Questions related to Java, oops, DBMS and tech-stack are mention in the resume
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Q2. Role of java in backend, explain polymorphism in oops, reverse string.
Ans. 
Java is a popular backend language, polymorphism allows objects to be treated as instances of their parent class, reverse string by iterating through characters.
• Java is commonly used in backend development for its robustness and scalability.

• Polymorphism in OOP allows objects to be treated as instances of their parent class, enabling flexibility and reusability.

• To reverse a string, iterate through the characters from th...read more
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Q1. It also consists of technical questions, future goals, project discussion mentioned in the resume and related tech stack, future goals, etc.
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Round duration - 30 minutes
Round difficulty - Medium

Basic questions from Operating System, Object Oriented Programming, DBMS, various tech stacks used in project. Be through with the basics of these subjects. Like in my case DDL and scheduling algorithms were asked.
Asked questions related on css,javascript and some sql queries. Interviewer was helpful. If one gives a answer that is not exactly correct, he provided me hints .

Q1. Can you explain the various CPU scheduling algorithms?
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Q2. 
Remove Character from String Problem Statement
Given a string str and a character 'X', develop a function to eliminate all instances of 'X' from str and return the resulting string.
Input:
The first lin...read more
Ans. Iterative Solution
• We create an empty string that will store our final result. We will return it at the end.
• We iterate from 0 to the length of the string. Say, our loop variable is i. We can then access the ith character as input[i]
• If the ith character equals the character c i.e input[i] == c, then we skip this character and do nothing.
• Else we need to append the character to the output string.
• We finally return the outpu...read more
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Q1. Ask technical from your domain....either from PHP, Nodejs or Java
Ans. Basic and advanced concept f related technologies....oops is common....also ask puzzle sometimes.
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3 coding program.

Q1. Managerial round with manager
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Q1. Human Resource round
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Q1. CTC from the previous employer
Ans. 
CTC from previous employer is confidential information.
• CTC from previous employer is considered confidential

• It is not appropriate to disclose salary details from previous job

• Focus on discussing your skills and experiences instead of previous salary
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Q2. Expected CTC for applying in neosoft
Ans. 
Expected CTC should be based on industry standards, experience, skills, and location.
• Research industry standards for Full Stack Developers in the specific location

• Consider your experience level and skills when determining expected CTC

• Factor in the cost of living in the location where the job is based

• Be prepared to negotiate based on the job responsibilities and benefits offered
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Coding test in javascript and question related to the tech stack

Q1. If there is any conflict between you and you coworker, what would you do
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