LTIMindtree Angular Frontend Developer Interview Questions, Process, and Tips

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. Basic angular questions
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Q2. Scenario based questions
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Q3. NgRx related questions
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In aptitude the interviewer asked for our skills of knowledge and reasoning questions

In this discussion group asking for some practical questions DSA like this

Q1. Why should we hire you
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Q2. Tell me about your previous job
Ans. 
I worked as a frontend developer at a software company, focusing on Angular development.
• Developed responsive web applications using Angular framework

• Collaborated with backend developers to integrate APIs and services

• Implemented new features and fixed bugs based on client requirements

• Participated in code reviews and testing processes

• Attended regular team meetings to discuss project progress
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Q3. Why are you changing your current job
Ans. 
Seeking new challenges and growth opportunities in a more innovative environment.
• Looking for new challenges and opportunities for growth

• Interested in working in a more innovative environment

• Seeking a better work-life balance
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Q4. Tell me about previous organization
Ans. 
I worked at a software development company specializing in e-commerce solutions.
• Developed frontend applications using Angular framework

• Collaborated with backend developers to integrate APIs

• Participated in code reviews and testing processes
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Q5. Tell me about your challenging task did you face
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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. Angular topics, routes, pipes
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Q2. Scenario based questions
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Q1. Salary discussion
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Q2. Return to office
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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. Explain promises and types
Ans. 
Promises are objects representing the eventual completion or failure of an asynchronous operation. Types refer to the data types in TypeScript.
• Promises are used for handling asynchronous operations in JavaScript.

• They can be in one of three states: pending, fulfilled, or rejected.

• Types in TypeScript help catch errors early by enforcing data types at compile time.

• Examples: Promise.resolve(), Promise.reject(), string, num
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