NeoSOFT Interview Questions, Process, and Tips

30 minutes. 3 aptitude questions . Very easy .

DSA Questions. Palindrome , Arrays and Strings were the most asked questions in my batch.

Q1. What are directors?
Ans. 
Directors are individuals responsible for overseeing the activities and operations of a company or organization.
• Directors are typically appointed by shareholders or members of the organization.

• They are responsible for making strategic decisions and setting goals for the organization.

• Directors have a fiduciary duty to act in the best interests of the company and its stakeholders.

• Examples of directors include the CEO, CF
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Q2. OOP COncepts such as polymorphism, inheritance, etc.
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Q1. What is dynamic Import in NextJs?
Ans. 
Dynamic Import in NextJs allows for code splitting and loading components only when needed.
• Dynamic Import in NextJs is a feature that allows you to import components asynchronously, improving performance by loading components only when needed.

• It helps in code splitting, where different parts of the application can be loaded separately, reducing the initial load time.

• Dynamic Import is achieved using the dynamic import()...read more
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Q2. Eager loading Vs Lazy loading?
Ans. 
Eager loading loads all related data upfront, while lazy loading loads data only when needed.
• Eager loading is more efficient for small datasets or when all related data is needed at once.

• Lazy loading is better for large datasets or when only specific data is needed.

• Eager loading can lead to performance issues if unnecessary data is loaded, while lazy loading can cause additional queries to be made.

• Examples: Eager loadi...read more
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Q3. What are PWA's?
Ans. 
PWA's are Progressive Web Applications that use modern web capabilities to provide a user experience similar to native mobile apps.
• PWA's can work offline or on low-quality networks.

• They can be installed on the user's device like a native app.

• PWA's are built using web technologies like HTML, CSS, and JavaScript.

• Examples of PWA's include Twitter Lite, Pinterest, and Starbucks.
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Q4. What are fallback in getStaticPaths in NextJs?
Ans. 
Fallback in getStaticPaths in NextJs allows dynamic routes to be pre-rendered on-demand.
• Fallback value can be true, false, or 'blocking'.

• When fallback is true, Next.js will serve a static page for paths not generated at build time.

• When fallback is 'blocking', Next.js will server a static page for paths not generated at build time, but will also server-render the page on the first request.

• Fallback is useful for dynamic
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Q5. What is Server Side Rendering and Static Site Generation?
Ans. 
Server Side Rendering (SSR) is the process of rendering web pages on the server side before sending them to the client. Static Site Generation (SSG) is the process of generating static HTML files at build time.
• SSR improves performance by reducing the time to first paint and providing better SEO.

• SSR can be implemented using frameworks like Next.js in React.

• SSG pre-renders pages at build time, resulting in faster loading...read more
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Q6. What are staticSideProps and serverSideProps used for?
Ans. 
staticSideProps and serverSideProps are used in Next.js for data fetching and pre-rendering.
• staticSideProps is used for pre-rendering static data at build time.

• serverSideProps is used for pre-rendering dynamic data at request time.

• staticSideProps is used for data that does not change frequently.

• serverSideProps is used for data that changes frequently or needs to be fetched at request time.
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Q7. What is nextHat package in NextJs used for?
Ans. 
nextHat package in NextJs is used for server-side rendering and managing server-side logic.
• nextHat package helps in handling server-side logic in NextJs applications

• It allows for server-side rendering of pages in NextJs

• nextHat package can be used for managing API calls and server-side data fetching
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Q1. What is Entity Framework and how does it function?
Ans. 
Entity Framework is an ORM framework for .NET developers to work with databases using objects instead of SQL queries.
• Entity Framework allows developers to work with databases using object-oriented programming.

• It provides a set of APIs to perform CRUD operations on database entities.

• EF generates SQL queries based on LINQ queries written in C#.

• It supports code-first, database-first, and model-first approaches for databas...read more
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Q1. What is hoisting
Ans. 
Hoisting is a JavaScript mechanism where variable and function declarations are moved to the top of their containing scope during compilation.
• Variable declarations are hoisted but not their initializations.

• Function declarations are fully hoisted, meaning they can be called before they are declared.

• Hoisting can lead to unexpected behavior if not understood properly.
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Q2. Name the CSS positions
Ans. 
CSS positions include static, relative, absolute, fixed, and sticky.
• Static - default position, elements are positioned according to the normal flow of the document

• Relative - positioned relative to its normal position

• Absolute - positioned relative to the nearest positioned ancestor

• Fixed - positioned relative to the viewport

• Sticky - acts like a combination of relative and fixed positioning
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Q3. What are semantic tags
Ans. 
Semantic tags are HTML tags that clearly define the content they contain for better accessibility and SEO.
• Semantic tags provide meaning to the content they enclose, making it easier for search engines to understand the structure of the page.

• Examples of semantic tags include

  ,

• Using semantic tags improves the accessibility of the website for users with disabilities, as screen readers can interp
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Q4. What is promise chaining
Ans. 
Promise chaining is a technique in JavaScript where multiple asynchronous operations are chained together to execute sequentially.
• Allows for handling multiple asynchronous operations in a more readable and organized way

• Each promise in the chain returns a new promise, allowing for further chaining

• Helps avoid callback hell by nesting promises inside each other

• Example: promise1.then(result => { return promise2; }).then(re
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Q5. Rest and spread operator
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Q6. What is virtual DOM
Ans. 
Virtual DOM is a lightweight copy of the actual DOM that React uses to improve performance by minimizing direct manipulation of the actual DOM.
• Virtual DOM is a concept in React where a lightweight copy of the actual DOM is created and updated in memory.

• When changes are made to the virtual DOM, React compares it with the actual DOM and only updates the necessary parts, reducing the number of direct manipulations to the ...read more
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Q7. Synthetic events in react
Ans. 
Synthetic events in React are events that are normalized by React to ensure consistent behavior across different browsers.
• Synthetic events are instances of the SyntheticEvent object in React.

• They are cross-browser compatible and have the same interface as native events.

• They are used to handle events like onClick, onChange, etc. in React components.

• Example: Click me
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Q8. What is redux in react
Ans. 
Redux is a predictable state container for JavaScript apps.
• Redux is a state management tool commonly used with React to manage the application's state in a predictable way.

• It helps in maintaining a single source of truth for the state of the entire application.

• Redux follows a unidirectional data flow, making it easier to understand how data changes over time.

• Actions are dispatched to update the state in Redux, and redu...read more
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Q9. What are hooks in react
Ans. 
Hooks in React are functions that let you use state and other React features without writing a class.
• Hooks were introduced in React 16.8.

• They allow you to use state and other React features in functional components.

• Some commonly used hooks are useState, useEffect, useContext, and useReducer.
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Q10. Difference between useMemo and useCallback
Ans. 
useMemo is used for memoizing values, while useCallback is used for memoizing functions.
• useMemo is used to memoize a value and only recompute it when its dependencies change.

• useCallback is used to memoize a function instance and only re-create it when its dependencies change.

• Example: useMemo can be used to memoize the result of a complex computation, while useCallback can be used to memoize a callback function passed t
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One question of recursion. Then pillars of angular. Type script interfaces

Q1. What is angular ?
Ans. 
Angular is a popular front-end framework for building dynamic web applications.
• Angular is developed and maintained by Google.

• It uses TypeScript for building applications.

• Angular provides features like two-way data binding, dependency injection, and routing.

• Components, services, modules, and directives are key building blocks in Angular.

• Example: Angular allows for the creation of single-page applications (SPAs) with smo
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Q1. What are hooks in reactjs?
Ans. 
Hooks are a new feature in React 16.8 that allow you to use state and other React features without writing a class.
• Hooks are functions that let you use state and other React features in functional components.

• They allow you to reuse stateful logic without changing your component hierarchy.

• Some built-in hooks include useState, useEffect, useContext, etc.

• Hooks provide a more direct API to the React concepts you already kn...read more
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Q2. What is pure component?
Ans. 
Pure component is a class component that does not re-render if the input props and state remain the same.
• Pure components implement shouldComponentUpdate method with shallow prop and state comparison.

• They are optimized for performance as they prevent unnecessary re-renders.

• Example: class MyComponent extends React.PureComponent { // component code here }
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Q3. What is modules in javascript?
Ans. 
Modules in JavaScript are reusable pieces of code that can be exported from one file and imported into another.
• Modules help in organizing code into separate files for better maintainability.

• Modules can be imported using 'import' keyword and exported using 'export' keyword.

• Modules can be used to encapsulate code and prevent global namespace pollution.

• CommonJS and ES6 modules are two popular module systems in JavaScript.
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Q4. What is the difference between rem and em in css? How to hide something in CSS?
Ans. 
rem and em are both units in CSS for defining font sizes, with rem being relative to the root element and em being relative to the parent element.
• rem stands for 'root em' and is relative to the font size of the root element (usually the tag)

• em stands for 'element em' and is relative to the font size of the parent element

• To hide something in CSS, you can use the display property with a value of 'none' or the visibility...read more
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