NeoSOFT Interview Questions, Process, and Tips

Q1. What is .Net Core ?
Ans. 
.Net Core is a free, open-source, cross-platform framework for building modern, cloud-based, internet-connected applications.
• Developed by Microsoft as the successor to the .NET Framework

• Supports multiple operating systems like Windows, macOS, and Linux

• Provides high performance and scalability for web applications

• Includes a modular and lightweight runtime called CoreCLR

• Allows developers to use C#, F#, and Visual Basic
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Q2. What is benefit of Microservices ?
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Microservices offer benefits such as scalability, flexibility, and easier maintenance.
• Scalability: Microservices allow for individual components to be scaled independently, leading to better resource utilization.

• Flexibility: Each microservice can be developed, deployed, and updated independently, allowing for more flexibility in the development process.

• Easier maintenance: With microservices, it is easier to identify an...read more
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Q3. What is ViewBag and ViewData ?
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ViewBag and ViewData are used in ASP.NET MVC to pass data from controller to view.
• ViewBag is a dynamic property that allows you to pass data from controller to view.

• ViewData is a dictionary object that allows you to pass data from controller to view.

• ViewBag is a dynamic object while ViewData is a dictionary object.

• Example: ViewBag.Title = 'Home Page'; ViewData['Message'] = 'Welcome to my website';
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Q4. What is CORS ?
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CORS stands for Cross-Origin Resource Sharing, a security feature that allows servers to specify who can access their resources.
• CORS is a security feature implemented by browsers to prevent unauthorized access to resources on a different origin.

• It allows servers to specify which origins are allowed to access their resources through HTTP headers.

• CORS is commonly used to enable cross-origin requests in web applications, ...read more
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Q5. Explain JWT in Brief.
Ans. 
JWT is a compact, self-contained way to securely transmit information between parties as a JSON object.
• JWT stands for JSON Web Token.

• It consists of three parts: header, payload, and signature.

• It is commonly used for authentication and information exchange in web development.

• Example: eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNTE2MjM5MDIyfQ.SflKxwRJSMeKKF2QT4fwpMeJf3
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Q1. Tell me about yourself.
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Q2. Difference between let, var ,const
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let, var, and const are all used for variable declaration in JavaScript, but they have different scopes and behaviors.
• let has block scope and can be reassigned, var has function scope and can be reassigned, const has block scope and cannot be reassigned

• Using let:

• let x = 10;

• x = 20; // valid

• Using var:

• var y = 5;

• y = 8; // valid

• Using const:

• const z = 15;

• z = 25; // invalid
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Q3. Difference between authorization and authentication
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Q4. What are private routes in nextjS?
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Q5. Difference between SSR and CSR?
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Q6. The architecture of nextJS.
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Q7. Currying in javascript
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Q1. What are AOT and JIT in Angular?
Ans. 
AOT and JIT are compilation techniques in Angular.
• AOT (Ahead-of-Time) compilation is done at build time, converting TypeScript and HTML code into efficient JavaScript code before the browser runs it.

• JIT (Just-in-Time) compilation is done at runtime, converting TypeScript and HTML code into JavaScript code while the application is running.

• AOT improves performance by reducing the size of the bundle and optimizing the cod...read more
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Q2. Observables vs promises
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Observables are streams of data that can be subscribed to, while promises are a single future value.
• Observables can handle multiple values over time, while promises can only handle a single value.

• Observables are cancellable, while promises are not.

• Observables support operators like map, filter, and reduce for data transformation.

• Promises have a simpler API with just then and catch methods.

• Observables are lazy, meaning ...read more
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Q3. What is data binding and types?
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Data binding is the automatic synchronization of data between the model and view components in an application.
• Data binding allows for the seamless updating of data in the model and reflecting those changes in the view without manual intervention.

• There are two types of data binding in Angular: one-way binding and two-way binding.

• One-way binding updates the view when the model changes, while two-way binding updates both ...read more
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Q4. What is closure?
Ans. 
Closure is a function that has access to its own scope, as well as the scope of its outer function.
• A closure allows a function to access variables from its outer function even after the outer function has finished executing.

• Closures are commonly used in JavaScript to create private variables and functions.

• Example: function outerFunction() { let outerVar = 'I am outer'; return function innerFunction() { console.log(oute
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Q5. Lazyloading in angular
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Lazy loading in Angular is a technique used to load modules only when they are needed, improving performance.
• Lazy loading helps reduce initial load time by loading modules on demand

• Implemented using loadChildren property in routes configuration

• Lazy loaded modules have their own routes and components
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Q6. Directives in Angular and Types
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Directives in Angular are markers on a DOM element that tell Angular to attach a specified behavior to that DOM element or transform the DOM element and its children.
• Directives are used to create reusable components in Angular.

• There are three types of directives in Angular: Component, Structural, and Attribute directives.

• Examples of directives include ngIf, ngFor, and ngStyle.
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Pagination task and filter table data

Q1. React life cycles
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Q2. Server side rendering
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Q3. Deep and shadow copy
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Q4. Ecmascript6 and latest updates with example
Ans. 
ES6 is the latest version of ECMAScript with new features like arrow functions, classes, and template literals.
• Arrow functions provide a more concise syntax for writing functions.

• Classes allow for easier object-oriented programming in JavaScript.

• Template literals make it easier to work with strings by allowing interpolation and multiline strings.
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Creating react componont with api integration, list rendering and adding custom filterals

Coding exercise, custom hooks, UI related quetions

Q1. Brief about your project ?
Ans. 
Developed a web application for managing inventory and sales for a retail store.
• Used Angular framework to create a responsive and user-friendly interface.

• Implemented features for adding, updating, and deleting products in the inventory.

• Integrated with backend APIs to fetch real-time sales data and generate reports.

• Utilized Angular Material for designing consistent UI components.
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Q2. What is angular? what is SPA?
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Angular is a popular front-end framework for building web applications. SPA stands for Single Page Application.
• Angular is a front-end framework developed by Google for building dynamic web applications.

• It uses TypeScript for building applications with components, services, and modules.

• SPA is a web application that loads a single HTML page and dynamically updates the content as the user interacts with the app.

• SPA provid...read more
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Q3. What is lazy loading?
Ans. 
Lazy loading is a technique in web development where resources are loaded only when needed, improving performance.
• Lazy loading helps reduce initial load time by loading resources on demand

• It is commonly used in Angular for loading modules, components, or routes asynchronously

• Lazy loading can improve user experience by speeding up page load times
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Q4. What is rxjs? in deep?
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.

• Operators like map, filter, and mergeMap are used to manipulate and combine streams.

• Subscriptions are used to listen to and react to changes in the data streams.

• Example: Using RxJS to make HTTP requests
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Q5. Angular and javascript basic question?
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Q6. Difference between ?? and ?:
Ans. 
?? is the nullish coalescing operator, while ? is the optional chaining operator in Angular.
• ?? is used to provide a default value when a variable is null or undefined.

• ? is used to safely access nested properties of an object without causing errors.

• Example: const name = person?.name; // safe access to 'name' property of 'person' object
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