Microsoft Corporation Front end Developer Interview Questions and Answers

Coding test that is from html,CSS, javascript

Q1. What is your salary expectation?
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Q2. What is the big challenge you had in your last job ?
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Two problems in JavaScript to solve

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Round duration - 60 Minutes
Round difficulty - Medium

This round consisted of some standard questions related to HTML , CSS , JS and basic Frontend develeoper practices .

Q1. What are the features of HTML5?
Ans. 
HTML5 is the latest version of the HTML standard with new features for web development.
• Support for multimedia elements like <video> and <audio>

• Canvas and SVG for graphics and animations

• Improved form controls and validation

• Offline storage capabilities with Local Storage and IndexedDB

• Geolocation API for location-based services
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Q2. Can you explain the CSS Box Model?
Ans. 
The CSS Box Model is a fundamental concept in CSS that defines the layout and spacing of elements on a webpage.
• The Box Model consists of content, padding, border, and margin.

• Content: The actual content of the box, such as text or images.

• Padding: Space between the content and the border.

• Border: The border surrounding the padding and content.

• Margin: Space outside the border, separating the element from other elements.

• Exa...read more
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Q3. What is prototype chaining in JavaScript?
Ans. 
Prototype chaining in JavaScript is the mechanism by which objects inherit properties and methods from other objects.
• In JavaScript, each object has a prototype property, which points to another object. When a property or method is accessed on an object, JavaScript will look for it in the object itself first, and then in its prototype chain.

• If the property or method is not found in the object, JavaScript will continue t...read more
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Q4. What are media elements in HTML?
Ans. 
Media elements in HTML are used to embed audio and video content on a webpage.
• Media elements include <audio> and <video> tags in HTML.

• They allow for the playback of audio and video files directly on a webpage.

• Attributes like src, controls, autoplay, and loop can be used to customize the behavior of media elements.

• Example: <video src='video.mp4' controls></video>
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Round duration - 70 Minutes
Round difficulty - Medium

This was a preety intense round revolving mainly around the core concepts of JavaScript and React . I was confident about my skills in JavaScript and React as I already had some projects in JS and React and I also completed the Guided Path of JS and React in CodeStudio which boosted my preparation and helped me crack these Frontend Interviews.

Q1. 
Swap Two Numbers Problem Statement
Given two integers a and b, your task is to swap these numbers and output the swapped values.
Input:
The first line contains a single integer 't', representing the num...read more
Ans. 
Swap two numbers 'a' and 'b' and output the swapped values.
• Create a temporary variable to store one of the numbers before swapping

• Assign the value of 'a' to 'b' and the temporary variable to 'a'

• Output the swapped values as 'b' followed by 'a'
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Q2. 
Sort Array Problem Statement
Given an array consisting of 'N' positive integers where each integer is either 0, 1, or 2, your task is to sort the given array in non-decreasing order.
Input:
Each input st...read more
Ans. 
Sort an array of 0s, 1s, and 2s in non-decreasing order.
• Use a counting sort algorithm to count the occurrences of 0s, 1s, and 2s in the array.

• Then reconstruct the array by placing the counted elements in order.

• Time complexity of the counting sort algorithm is O(N).
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Q3. Can you explain promises and their three states?
Ans. 
Promises are objects representing the eventual completion or failure of an asynchronous operation.
• Promises have three states: pending, fulfilled, and rejected.

• Pending: initial state, neither fulfilled nor rejected.

• Fulfilled: operation completed successfully.

• Rejected: operation failed.

• Promises can be chained using .then() to handle success and failure.

• Example: const promise = new Promise((resolve, reject) => { ... })
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Q4. What are callbacks in JavaScript?
Ans. 
Callbacks in JavaScript are functions passed as arguments to other functions, to be executed later.
• Callbacks are commonly used in asynchronous operations, such as event handling or AJAX requests.

• They allow for more flexible and dynamic programming, by defining behavior that should happen after a certain event or task is completed.

• Example: setTimeout function in JavaScript takes a callback function as an argument to be
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Q5. What is the Same-origin policy?
Ans. 
Same-origin policy is a security measure in web browsers that restricts how a document or script loaded from one origin can interact with a resource from another origin.
• It prevents a web page from making requests to a different domain than the one it was loaded from.

• It helps protect user data and prevent malicious attacks like cross-site scripting (XSS).

• Cross-origin resource sharing (CORS) headers can be used to relax
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Q6. Can you explain the lifecycle of components in React?
Ans. 
Components in React go through various stages like mounting, updating, and unmounting.
• Components are created and inserted into the DOM during the mounting phase.

• During the updating phase, components can re-render due to changes in props or state.

• Components are removed from the DOM during the unmounting phase.

• Lifecycle methods like componentDidMount, componentDidUpdate, and componentWillUnmount are used to perform actio
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Round duration - 30 Minutes
Round difficulty - Easy

This was a typical HR round with some standard Behavioral questions like my interests, weaknesses, strengths, family background, are you willing to relocate or travel , why Amdocs, CEO of Amdocs etc.

Q1. Why do you want to work at Amdocs?
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A Medium Range hard questions will be asked and we need to solve with in the given time

Asked 3 questions of hard we need to use any one of the given language to solve the questions

Q1. Be Confident and Have Deep understanding About The Job Which You Applied
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Q2. Are You Willing To relocate
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Q3. How You Will Manage The Work Load Pressure
Ans. 
I manage work load pressure by prioritizing tasks, setting realistic deadlines, and taking breaks to avoid burnout.
• Prioritize tasks based on deadlines and importance

• Break down tasks into smaller, manageable chunks

• Set realistic deadlines and communicate with team members if needed

• Take short breaks to avoid burnout and maintain productivity
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Q4. How Will You solve An Issue If You Don;t know
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Q1. Introduce yourself
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Q1. They asked about current project.
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Q2. They have given some problem to write javascript code.
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Q1. Js basics like var, let and const
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Q2. Angular basic questions
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