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12th June, 2023

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TCS Interview Questions and Answers 2023: Prepare for Your Interview with Confidence

Here are some common TCS interview questions and answers for 2023:

Tell me about yourself. This is a common interview question that is used to get to know you better. Be sure to highlight your skills, experience, and why you are interested in working for TCS.
What are your strengths and weaknesses? This is another common interview question. Be honest about your strengths and weaknesses, but focus on your strengths.
What are your career goals? This question is designed to see if you are a good fit for TCS. Be sure to mention your long-term career goals and how TCS can help you achieve them.
Why do you want to work for TCS? This question is your chance to sell yourself to TCS. Be sure to explain why you are interested in working for the company and what you can contribute.
What do you know about TCS? This question is designed to see if you have done your research on the company. Be sure to mention some of TCS's strengths and accomplishments.
What are your salary expectations? This question is usually asked at the end of the interview. Be sure to do your research on salaries for similar positions in your field.

Here are some additional tips for answering TCS interview questions:

Be confident. The interviewer wants to see that you are confident in your skills and abilities.
Be prepared. Do your research on TCS and the position you are interviewing for.
Be professional. Dress professionally and be respectful to the interviewer.
Be positive. Show the interviewer that you are excited about the opportunity to work for TCS.

By following these tips, you can increase your chances of success in your TCS interview.

Here are some common Angular interview questions and answers for 2023:

What is Angular?
- Angular is a web application framework developed and maintained by Google. It is based on TypeScript and uses HTML, CSS, and JavaScript. Angular is used to create single-page applications (SPAs) that are dynamic and interactive.
What are the building blocks of Angular?
- The building blocks of Angular are components, directives, services, and modules.
- Components are the building blocks of Angular applications. They are responsible for rendering HTML, handling events, and communicating with other components.
- Directives are used to add new functionality to HTML elements. They can be used to add custom attributes, behaviors, and styles to elements.
- Services are used to provide reusable functionality to components. They are typically used to handle data access, authentication, and routing.
- Modules are used to organize components, directives, and services into logical units.
What is a component and lifecycle hook of component?
- A component is a TypeScript class that defines a portion of an Angular application. It has a template that defines the HTML that is rendered for the component, and a set of methods that handle events and data binding.
- A lifecycle hook is a method that is called at a specific point in the lifetime of a component. There are a number of lifecycle hooks, including ngOnInit(), ngDoCheck(), and ngOnDestroy().
What is service?
- A service is a TypeScript class that provides reusable functionality to components. Services are typically used to handle data access, authentication, and routing.
What is module?
- A module is a TypeScript file that defines a collection of components, directives, and services. Modules are used to organize code into logical units and to control the dependencies between components.
What is directive?
- A directive is a TypeScript class that can be used to add new functionality to HTML elements. Directives can be used to add custom attributes, behaviors, and styles to elements.
What is difference between directive and component?
- The main difference between a directive and a component is that a directive is not a first-class citizen in Angular. Components are the building blocks of Angular applications, and they are given special treatment by the Angular compiler. Directives, on the other hand, are treated more like regular HTML elements.
Types of directives
- There are two types of directives: structural directives and attribute directives.
- Structural directives change the layout of the DOM tree. They can be used to create new elements, remove elements, or rearrange the order of elements.
- Attribute directives add new functionality to HTML elements. They can be used to add custom attributes, behaviors, and styles to elements.
Difference between package.json and angular.json?
- package.json is a file that is used to define the dependencies of a Node.js application. It contains a list of packages that the application needs to run.
- angular.json is a file that is used to configure an Angular application. It contains information about the application's modules, components, and services.
What is lazy loading and how it is implemented?
- Lazy loading is a technique that is used to load Angular modules on demand. This can improve the performance of Angular applications by reducing the amount of code that needs to be loaded when the application starts.
- Lazy loading is implemented by using the ngModule.lazy() annotation. This annotation tells Angular to load the module only when it is needed.
What is interceptor?
- An interceptor is a service that can be used to intercept HTTP requests and responses. Interceptors can be used to add custom headers, cookies, and query parameters to requests, and to manipulate the response data before it is returned to the component.
What is route guard?
- A route guard is a service that can be used to prevent a route from being activated. Route guards can be used to check the user's authentication status, or to make sure that the user has the correct permissions to access the route.
Interaction between components Components can interact with each other in a number of ways. They can communicate with each other using services, or they can pass data to each other using input and output properties.

What are the benefits of using Angular?
- Angular is a powerful and versatile framework that can be used to create a wide variety of web applications. It is easy to learn and use, and it provides a number of features that can help you to create high-quality applications.
- Some of the benefits of using Angular include:
  - Performance: Angular applications are typically very performant, thanks to Angular's use of lazy loading and its dependency injection system.
  - Testability: Angular applications are very easy to test, thanks to Angular's built-in testing framework.
  - Scalability: Angular applications are very scalable, thanks to Angular's component-based architecture.
What are the drawbacks of using Angular?
- Angular is a complex framework, and it can be difficult to learn and use. It is also a relatively new framework, so there are not as many resources available for Angular developers as there are for developers of other frameworks.
- Some of the drawbacks of using Angular include:
  - Complexity: Angular is a complex framework, and it can be difficult to learn and use.
  - Lack of resources: There are not as many resources available for Angular developers as there are for developers of other frameworks.
  - Performance: Angular applications can be slower than applications that are built using other frameworks.

Here are some additional questions that you may be asked in an Angular interview:

What is the difference between AngularJS and Angular?
What are the different types of Angular components?
What is the difference between a service and a directive?
How do you use lazy loading in Angular?
What are the different types of Angular pipes?
How do you use routing in Angular?
What are the different ways to communicate between components in Angular?
What are the different ways to test Angular applications?

These are just a few of the common Angular interview questions that you may be asked. I recommend that you practice answering these questions in order to prepare for your interview.I recommend that you practice answering these questions in order to prepare for your interview.

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