TCS User Interface and Angular Developer Interview Questions and Answers

Q1. Tell me about yourself
Ans. 
I am a passionate Angular Developer with 5 years of experience in building responsive web applications.
• 5 years of experience in Angular development

• Strong knowledge of HTML, CSS, and JavaScript

• Experience in building responsive web applications

• Familiarity with RESTful APIs and version control systems like Git
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Q2. Can you explain attributes in Html
Ans. 
Attributes in HTML provide additional information about an element and are defined within the element's start tag.
• Attributes are used to modify the behavior or appearance of an HTML element.

• They are specified within the opening tag of an element using name-value pairs.

• Examples include 'href' in an anchor tag (<a href='https://www.example.com'>) and 'src' in an image tag (<img src='image.jpg'>).
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Q3. Explain about Flexbox model
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Flexbox is a layout model in CSS that allows for dynamic and responsive design of web pages.
• Flexbox is used to create flexible layouts that can adapt to different screen sizes and orientations.

• It allows for easy alignment and distribution of elements within a container.

• Flexbox properties include display: flex, flex-direction, justify-content, align-items, and flex-grow.

• Example: display: flex; justify-content: center; a
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Q4. Explain about your project
Ans. 
Developed a web application for managing inventory and sales for a retail store.
• Used Angular framework for front-end development

• Implemented CRUD operations for managing products and sales

• Integrated with backend APIs for data retrieval and storage
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Q5. How to transfer data between components
Ans. 
Methods to transfer data between components in Angular include Input and Output properties, ViewChild, Services, and Event Emitters.
• Using Input and Output properties to pass data from parent to child components and emit events from child to parent components.

• Using ViewChild to access child components and their properties directly from the parent component.

• Using Services to create a shared service that can be injected i...read more
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Q6. Mostly they asked about my project work
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Q1. Tell me about yourself
Ans. 
I am a passionate Angular Developer with 5 years of experience in building responsive web applications.
• 5 years of experience in Angular development

• Strong knowledge of HTML, CSS, and JavaScript

• Experience in building responsive web applications

• Familiarity with RESTful APIs and version control systems like Git
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Q2. Explain your current project and your contribution
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Q1. Angular routing
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Q2. What are pipes in angular
Ans. 
Pipes in Angular are used for transforming data in templates.
• Pipes are used to format data before displaying it in the view

• They can be used to filter, sort, or transform data in various ways

• Examples include date pipe, currency pipe, and uppercase/lowercase pipe
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Q1. Which version of java you use?
Ans. 
I use Java version 8 for Angular development.
• I use Java 8 for its compatibility with Angular frameworks and libraries.

• Java 8 introduced features like lambda expressions and streams which are useful in Angular development.

• Example: I use Java 8 to write backend services for my Angular applications.
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Q2. What are the new features in java 8?
Ans. 
Java 8 introduced several new features including lambda expressions, functional interfaces, streams, and default methods.
• Lambda expressions allow you to write code in a more concise and readable way.

• Functional interfaces provide a way to define interfaces with a single abstract method.

• Streams allow you to process collections of objects in a functional style.

• Default methods allow you to add new methods to interfaces wit
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Q1. MCQ questioons were there based on angular framework
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Q2. Services mcq were there
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Q1. What is Dependecy Injection
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Dependency Injection is a design pattern in which a class receives its dependencies from external sources rather than creating them itself.
• Allows for easier testing by injecting mock dependencies

• Promotes reusability and modularity by decoupling components

• Reduces code duplication by centralizing dependency creation

• Example: Angular uses Dependency Injection to provide services to components
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Q2. What is routing
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Routing is the process of navigating between different pages or views in a web application.
• Routing allows users to move between different parts of a web application without reloading the entire page

• It is implemented using a router module in Angular, which maps URLs to components

• Routes can have parameters that can be passed to components for dynamic content

• Routing can be used to create single-page applications (SPAs) wh
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Q1. Angular Lifecycle
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Q2. Types of compilations in Angular
Ans. 
There are two types of compilations in Angular: Just-in-Time (JIT) compilation and Ahead-of-Time (AOT) compilation.
• Just-in-Time (JIT) compilation: Compiles the Angular application in the browser at runtime. Slower startup time but easier development process.

• Ahead-of-Time (AOT) compilation: Compiles the Angular application during the build process before the browser downloads and runs the code. Faster startup time but r
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Q3. Building blocks of Angular
Ans. 
Building blocks of Angular include components, modules, services, directives, templates, and dependency injection.
• Components are the basic building blocks of Angular applications

• Modules help organize the application into cohesive blocks of functionality

• Services are reusable code that can be injected into components

• Directives add behavior to elements in the DOM

• Templates define the UI of the application

• Dependency injecti...read more
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Q1. Create a reactive form and save data in API with proper validation?
Ans. 
Create a reactive form in Angular to save data in API with validation
• Create a reactive form using FormBuilder in Angular

• Add form controls with proper validation rules using Validators

• Handle form submission and send data to API using HttpClient

• Implement error handling for API requests

• Display success or error messages to the user
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Q2. What is Auth-gaurd?
Ans. 
Auth-guard is a feature in Angular that controls access to routes based on user authentication status.
• Auth-guards are used to protect routes in Angular applications by checking if a user is authenticated before allowing access.

• They can be implemented using canActivate interface in Angular.

• Auth-guards can redirect unauthenticated users to a login page or display an error message.

• They are commonly used in applications wi...read more
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Q3. How many ways we can communicate in Angular component?
Ans. 
There are multiple ways to communicate in Angular components, including Input, Output, ViewChild, and Services.
• Input - parent component can pass data to child component using @Input decorator

• Output - child component can emit events to parent component using @Output decorator

• ViewChild - parent component can access child component using @ViewChild decorator

• Services - components can communicate through shared services
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Q4. Find longest word from string in JS?
Ans. 
Use JavaScript to find the longest word in a string.
• Split the string into an array of words using split() method.

• Iterate through the array and compare the length of each word to find the longest one.

• Return the longest word found.
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Q1. Your Career Journey?
Ans. 
I started my career as a web developer, specializing in frontend technologies like Angular. I have worked on various projects and gained valuable experience.
• Started career as web developer

• Specialized in frontend technologies like Angular

• Worked on various projects

• Gained valuable experience
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Q2. Your experties?
Ans. 
I have expertise in developing Angular frontend applications with strong knowledge of TypeScript, HTML, CSS, and Angular frameworks.
• Strong knowledge of TypeScript, HTML, and CSS

• Experience in developing Angular frontend applications

• Familiarity with Angular frameworks like AngularJS, Angular 2+, Angular Material

• Understanding of reactive programming and observables in Angular

• Knowledge of state management with tools like N
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Q1. How do you implement a login page
Ans. 
Implementing a login page involves creating a form for users to input their credentials and validating them against a database.
• Create a login form with fields for username and password

• Use Angular's form validation to ensure required fields are filled out

• Send the user's credentials to a backend server for authentication

• Upon successful authentication, redirect the user to the main application page
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Q1. What are the time queue, etc in API
Ans. 
Time queue in API refers to managing requests in a sequential order.
• Time queue ensures that API requests are processed in the order they are received.

• It helps in preventing overload on the server by limiting the number of concurrent requests.

• Examples include using promises or async/await in JavaScript to handle API calls sequentially.
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Q2. What is the meaning of preflight in API? (All questions are related to dev oops profile. I applied for Angular)
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