Kesari Tours Interview Questions and Answers

Yes, I am willing to work on 24x7 support requirements.

• I understand the importance of providing round-the-clock support to ensure system availability and minimize downtime.

• I am comfortable with working in shifts and being on-call to address any issues that may arise.

• I have experience in incident management and troubleshooting, which are crucial skills for handling support requirements.

• I am familiar with tools and technologies used in monitoring and managing systems, such as m...read more

Async code in JavaScript allows non-blocking execution, improving performance and responsiveness.

• Async code uses callbacks, promises, or async/await to handle asynchronous operations.

• Callbacks are functions passed as arguments to another function, to be executed once the async operation is complete.

• Promises represent the eventual completion or failure of an asynchronous operation, allowing chaining of multiple async operations.

• Async/await is a modern syntax for handling async...read more

let, const, and var are all used for variable declaration in JavaScript, but they have different scopes and behaviors.

• let: block-scoped, can be reassigned, not hoisted

• const: block-scoped, cannot be reassigned, not hoisted

• var: function-scoped, can be reassigned, hoisted

Program to find prime numbers in a given range

• Iterate through numbers in the given range

• Check if each number is divisible by any number other than 1 and itself

• If not divisible, then it is a prime number

• Store prime numbers in an array

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

• Promises are used in JavaScript to handle asynchronous operations.

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

• Promises can be chained together using .then() to handle success and failure.

• Example: Fetching data from an API returns a promise that resolves with the data or rejects with an error.

MVVM is a design pattern used in software development to separate the user interface from the business logic.

• MVVM stands for Model-View-ViewModel

• Model represents the data and business logic

• View represents the user interface

• ViewModel acts as an intermediary between the Model and View

• MVVM helps in achieving separation of concerns and easier unit testing

• Popular in frameworks like Angular and Vue.js