Monolith vs Microservices in .NET Core 1. Monolithic Architecture Definition : A single, unified codebase where all modules (UI, business logic, data access) are part of one large application. Deployment : Deployed as a single unit (e.g., one .exe or .dll ). Scaling : Scales by cloning the entire application (vertical/horizontal scaling). Communication : Internal method calls (no network). Tech Stack : Typically limited to a single framework/runtime. Example in .NET Core : An ASP.NET Core MVC app with controllers, services, and EF Core all in the same project. Single database, one codebase, deployed to IIS/Kestrel. 2. Microservices Architecture Definition : A collection of small, independent services, each responsible for a specific business function. Deployment : Each service runs independently (often in Docker containers). Scaling : Scale individual services based on demand. Communication : Via APIs (REST, gRPC, message queues). ...
1. What is AngularJS, and what are its key features?
Answer: AngularJS is an open-source JavaScript framework developed by Google. It is used for building dynamic web applications. Key features include two-way data binding, dependency injection, directives, and a modular architecture that promotes reusable components.
2. Explain two-way data binding in AngularJS.
Answer: Two-way data binding in AngularJS means that changes to the model automatically reflect in the view, and vice versa. It ensures that the view and model are always in sync, making it easier to develop responsive user interfaces. This is achieved using directives like ng-model.
3. What is dependency injection in AngularJS, and why is it important?
Answer: Dependency injection is a design pattern in AngularJS that allows components to request their dependencies rather than creating them. It promotes modularity, testability, and the reusability of components. AngularJS's built-in dependency injection system handles the injection of dependencies.
4. What are AngularJS directives, and can you give an example?
Answer: Directives are markers on DOM elements that tell AngularJS to attach a specific behavior or functionality to that element. For example, ng-repeat is a directive used for iterating over a collection and rendering elements in the view.
5. Explain the concept of AngularJS modules.
Answer: AngularJS modules are containers for different parts of your application, such as controllers, services, and directives. They help organize and encapsulate code and can be used to define dependencies between components. You can create modules using angular.module().
6. How does AngularJS handle routing?
Answer: AngularJS provides a client-side routing mechanism using the $routeProvider service. You can define routes and associated templates and controllers. When the URL changes, AngularJS loads the appropriate view and controller without a full page reload.
7. What are filters in AngularJS, and can you provide an example?
Answer: Filters are used to format and manipulate data in AngularJS templates. For example, the currency filter can be used to format a number as a currency. Example: {{ price | currency }}
8. What is the AngularJS digest cycle?
Answer: The digest cycle is a key part of AngularJS's data binding mechanism. It is responsible for detecting changes in the model and updating the view accordingly. When changes occur, AngularJS runs the digest cycle to keep the view and model in sync.
9. How can you make an HTTP request in AngularJS?
Answer: AngularJS provides the $http service for making HTTP requests. You can use it to perform GET, POST, PUT, and DELETE requests to interact with RESTful APIs or retrieve data from a server.
10. Explain the concept of scope in AngularJS.
Answer: In AngularJS, the scope is an object that binds the view and controller. It acts as a glue between the two, allowing data to flow between them. Changes in the scope are reflected in the view, and vice versa, due to two-way data binding.
Remember that in an interview, it's not just about providing correct answers but also demonstrating your understanding of the concepts and your problem-solving abilities. Be prepared to discuss your experience with AngularJS and provide real-world examples of how you've used it in your projects.
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