Air India Interview Questions, Process, and Tips

I enjoy the variety of challenges and problem-solving involved in analyzing business processes.

• I love the opportunity to work with stakeholders from different departments to understand their needs and goals.

• I find satisfaction in identifying inefficiencies in current processes and proposing solutions for improvement.

• I appreciate the analytical aspect of the role, where I get to dive deep into data to uncover insights t...read more

I dislike the lack of clear direction and constantly changing priorities in my role.

• Lack of clear direction from management

• Constantly changing priorities make it difficult to focus

• Feeling overwhelmed by the volume of work and expectations

• Limited opportunities for growth and advancement

A promise is an object representing the eventual completion or failure of an asynchronous operation.

• Promises are used to handle asynchronous operations in JavaScript.

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

• Promises can be chained together using .then() method.

• They help avoid callback hell and make code more readable and maintainable.

The event loop is a mechanism in Node.js that allows for non-blocking I/O operations by handling asynchronous tasks.

• Handles asynchronous tasks by executing callback functions when I/O operations are completed

• Ensures that the Node.js application remains responsive by not blocking the main thread

• Uses a single-threaded model to process multiple tasks concurrently

Event loop is a mechanism in Node.js that allows non-blocking I/O operations to be performed asynchronously.

• Event loop continuously checks the call stack for any functions that need to be executed.

• It offloads I/O operations to the system kernel and executes callbacks when the operations are completed.

• Event loop ensures that Node.js remains responsive and can handle multiple requests concurrently.

Idempotency in REST APIs ensures that multiple identical requests have the same effect as a single request.

• Idempotency means that the result of a successful request is the same regardless of how many times it is made.

• GET and PUT requests are typically idempotent, while POST requests are not.

• Using unique identifiers like UUIDs in requests can help ensure idempotency.

• Idempotency is important for ensuring data consistency

Design considerations for building an API

• Define clear and consistent naming conventions for endpoints and parameters

• Use versioning to manage changes and updates without breaking existing clients

• Implement proper authentication and authorization mechanisms to secure the API

• Design for scalability and performance by considering caching, rate limiting, and pagination

• Provide comprehensive documentation to guide developers on

ViewModel is a class that is responsible for preparing and managing data for an activity or fragment.

• ViewModel helps in separating the UI data from the UI controller logic.

• It survives configuration changes such as screen rotations.

• ViewModel is part of the Android Architecture Components.

• Example: ViewModel can hold data retrieved from a database and provide it to the UI.

LaunchEffect is a function in Jetpack Compose that allows you to trigger side effects when a composable is first launched.

• LaunchEffect is used to perform actions such as fetching data from a network or initializing a resource when a composable is first displayed.

• It is similar to the useEffect hook in React.

• Example: launchEffect { fetchData() }