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I applied via Naukri.com and was interviewed in Mar 2021. There was 1 interview round.
Let, Const, and Var are used to declare variables in JavaScript with different scoping and reassignment abilities.
Var has function scope and can be redeclared and reassigned.
Let has block scope and can be reassigned but not redeclared.
Const has block scope and cannot be reassigned or redeclared.
State and props are two important concepts in React. State represents the internal data of a component, while props are used to pass data from a parent component to a child component.
State is mutable and can be changed within a component.
Props are read-only and cannot be modified within a component.
State is used to manage component-specific data, while props are used for inter-component communication.
State is initializ...
Promise is a callback function that returns a value in the future. Async-Await is a syntax that simplifies working with Promises.
Promises are used to handle asynchronous operations and avoid callback hell.
Async-Await is a syntax that allows writing asynchronous code that looks like synchronous code.
Async-Await is built on top of Promises and uses the same underlying mechanism.
Async-Await can only be used within an asyn...
Closures are functions that have access to variables in their outer scope, even after the outer function has returned.
Closures are created when a function is defined inside another function.
The inner function has access to the outer function's variables and parameters.
Closures can be used to create private variables and methods.
Closures can also be used to create functions with pre-set arguments.
Hoisting is a JavaScript behavior where variable and function declarations are moved to the top of their scope.
Hoisting applies to both variable and function declarations.
Variable declarations are hoisted but not their initializations.
Function declarations are fully hoisted, including their definitions.
Hoisting can lead to unexpected behavior if not understood properly.
Event Loop is a mechanism that allows JavaScript to handle asynchronous operations.
Event Loop is a continuous process that checks the Event Queue and moves events to the Event Stack.
Event Queue holds all the events that are waiting to be processed.
Event Stack holds the events that are currently being processed.
When the Event Stack is empty, the Event Loop checks the Event Queue for new events.
JavaScript uses Event Loop...
Local Storage is persistent storage that remains even after the browser is closed, while Session Storage is temporary and is cleared when the browser is closed.
Local Storage has no expiration date, while Session Storage is cleared when the session ends
Local Storage can store larger amounts of data compared to Session Storage
Local Storage is accessible across different browser tabs and windows, while Session Storage is ...
Redux is a state management library for JavaScript applications, providing a predictable and centralized workflow.
Redux follows a unidirectional data flow pattern.
The application state is stored in a single JavaScript object called the store.
Actions are dispatched to describe state changes.
Reducers are pure functions that specify how the state should change based on the dispatched actions.
Selectors are used to extract ...
Optimizing a React app involves reducing bundle size, using lazy loading, and optimizing rendering performance.
Reduce bundle size by code splitting and using dynamic imports
Use lazy loading to load components only when needed
Optimize rendering performance by using shouldComponentUpdate and PureComponent
Use React.memo to memoize functional components
Avoid unnecessary re-renders by using useMemo and useCallback
Use perfor...
Hooks are a feature introduced in React 16.8 that allow developers to use state and other React features in functional components.
useState() - for managing state in functional components
useEffect() - for performing side effects in functional components
useContext() - for accessing context in functional components
useReducer() - for managing complex state and actions in functional components
useCallback() - for memoizing f...
Higher Order Functions are functions that take other functions as arguments or return functions as their results.
Higher Order Functions can be used to create reusable code by abstracting common functionality into a separate function.
They can also be used to implement functional programming concepts like currying and composition.
Example: Array.prototype.map() is a higher order function that takes a callback function as ...
Context API is a feature in React that allows data to be passed down the component tree without manually passing props at each level.
Context API provides a way to share data between components without the need for prop drilling.
It consists of two main components: Provider and Consumer.
The Provider component allows data to be provided and accessed by any component within its subtree.
The Consumer component allows compone...
I applied via Job Portal and was interviewed in Dec 2024. There were 2 interview rounds.
Different types of changes include organizational, technological, process, and strategic changes.
Organizational changes involve restructuring, mergers, or leadership changes.
Technological changes refer to implementing new systems, software, or tools.
Process changes focus on improving workflows, procedures, or policies.
Strategic changes involve shifts in overall goals, vision, or direction.
A PIR report is a Post-Implementation Review report that evaluates the success of a change or project after it has been implemented.
PIR reports assess the effectiveness of a change or project in meeting its objectives.
They identify lessons learned and areas for improvement for future changes or projects.
PIR reports often include feedback from stakeholders and key performance indicators (KPIs) to measure success.
Example...
The change management process in ITIL involves requesting, assessing, authorizing, implementing, and reviewing changes to IT services.
Requesting changes: Users or stakeholders submit change requests for IT services.
Assessing changes: Change managers evaluate the potential impact and risks of proposed changes.
Authorizing changes: Changes are approved or rejected based on their impact and alignment with business goals.
Im...
I am very flexible with shift schedules and can adapt to different timings as needed.
I have experience working various shifts in my previous roles.
I am willing to adjust my schedule to meet the needs of the team or project.
I understand the importance of being available during critical times, even if it means working non-traditional hours.
Agile is an iterative approach to project management, while waterfall is a linear approach.
Agile is iterative and allows for flexibility and changes throughout the project.
Waterfall is a linear approach where each phase must be completed before moving on to the next.
Agile focuses on delivering working software in short iterations, while waterfall follows a sequential process from requirements to testing and deployment.
I handle agile waterfall projects by blending the flexibility of agile with the structure of waterfall.
I create a hybrid approach that combines the iterative nature of agile with the sequential phases of waterfall.
I prioritize requirements and plan sprints while also defining clear milestones and deliverables.
I ensure constant communication and collaboration among team members to adapt to changes while staying on track...
Managed a large-scale construction project using the waterfall methodology
Developed a detailed project plan outlining all tasks and dependencies
Assigned specific roles and responsibilities to team members
Implemented a strict change control process to minimize scope creep
Conducted regular status meetings to track progress and address any issues
Completed the project on time and within budget
Data centre setup should evolve with advancements in technology and increasing demands for storage and processing power.
Regularly assess and upgrade hardware to ensure optimal performance
Implement virtualization to maximize resource utilization
Utilize cloud services for scalability and flexibility
Enhance security measures to protect sensitive data
Consider energy efficiency and sustainability in design
I applied via Approached by Company and was interviewed in Dec 2024. There were 4 interview rounds.
Java, DSA Coding Questions, Array, LL
Capgemini Engineering interview questions for popular designations
A closure is a function that has access to its own scope, as well as the scope in which it was defined.
A closure allows a function to access variables from an outer function even after the outer function has finished executing.
Closures are commonly used in event handlers, callbacks, and in functional programming.
Example: const outerFunction = () => { const outerVar = 'I am outer'; return () => { console.log(outer...
State is mutable and managed within a component, while props are immutable and passed from parent to child components.
State is managed within a component and can be changed using setState() method
Props are passed from parent to child components and cannot be changed within the child component
State is used for internal component data management, while props are used for passing data from parent to child components
Exampl...
display block takes up full width and starts on a new line, while display inline only takes up as much width as necessary and does not start on a new line.
display block elements start on a new line and take up the full width available, while display inline elements do not start on a new line and only take up as much width as necessary
display block elements can have margin and padding applied on all four sides, while di...
A promise is an object representing the eventual completion or failure of an asynchronous operation.
Promises are used to handle asynchronous operations in JavaScript.
A promise can be in one of three states: pending, fulfilled, or rejected.
Promises can be chained using .then() to handle success and .catch() to handle errors.
Example: Fetching data from an API returns a promise that resolves with the data or rejects with
Get interview-ready with Top Capgemini Engineering Interview Questions
Good morning raise a simple terms of the following sentence to be ready to to to to to to to to
I applied via Naukri.com and was interviewed in Nov 2024. There were 2 interview rounds.
No, service and controller annotations cannot be interchanged.
Service annotations are used to define a class as a service component, while controller annotations are used to define a class as a controller component.
Service annotations are typically used for business logic and data manipulation, while controller annotations are used for handling HTTP requests and responses.
Interchanging these annotations can lead to une
Seeking new challenges and opportunities for growth in a different environment.
Desire for new challenges and opportunities
Seeking professional growth and development
Interested in exploring different work environment
Looking for a change in career path
I applied via Naukri.com and was interviewed in Nov 2024. There was 1 interview round.
MCQ’s only, DSA and other MCQ 1 hour
I applied via Campus Placement and was interviewed in Oct 2024. There were 2 interview rounds.
Easy and gaming round also included which has more weightage
The four pillars of OOP are encapsulation, inheritance, polymorphism, and abstraction.
Encapsulation: Bundling data and methods that operate on the data into a single unit.
Inheritance: Allowing a class to inherit properties and behavior from another class.
Polymorphism: The ability for objects of different classes to respond to the same message.
Abstraction: Hiding the complex implementation details and showing only the n
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