Capgemini Java 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
Ans. 
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. 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
Ans. 
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
Ans. 
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. How to pass data from component to another component
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Q2. Life cycle hooks
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Q3. Observables&subject
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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
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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. How directives are different from component
Ans. 
Directives are used to add behavior to existing DOM elements, while components are used to create new custom elements.
• Directives are used to manipulate the behavior of existing DOM elements, such as changing their appearance or adding event listeners.

• Components are used to create custom elements with their own templates, styles, and behavior.

• Directives can be structural (like ngIf and ngFor) or attribute-based (like ng...read more
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Q2. 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 and function declarations are hoisted to the top of their scope, regardless of where they are declared in the code.

• Only the declarations are hoisted, not the initializations.

• Function declarations are hoisted before variable declarations.
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Q1. Explain design patterns.
Ans. 
Design patterns are reusable solutions to common problems in software design.
• Design patterns help in creating maintainable, scalable, and efficient code.

• They provide a common language for developers to communicate about solutions to recurring problems.

• Examples of design patterns include Singleton, Factory, Observer, and Strategy patterns.
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Q2. Explain subject. what is replay subject
Ans. 
ReplaySubject is a type of Subject in RxJS that records multiple values and replays them to new subscribers.
• ReplaySubject is a type of Subject in RxJS

• It records multiple values and replays them to new subscribers

• It has a buffer size that determines how many values to replay
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Q1. Salary discussion
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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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Q1. Javascript questions
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