How can you handle asynchronous operations in Node.js? a. Using promises b. All of the above c. Using callbacks d. Using async/await

The correct answer is b. All of the above.

In Node.js, you can handle asynchronous operations in several ways:

a. Using Promises: Promises are a way of handling asynchronous operations in Node.js. They represent a value that may not be available yet, but will be resolved or rejected at some point in the future.

b. Using Callbacks: Callbacks are a fundamental part of Node.js. They are functions that are called when a certain task is completed, allowing other code to be run in the meantime.

c. Using async/await: The async/await feature, built on top of promises, is a way to handle asynchronous operations in a more synchronous manner. It makes asynchronous code look and behave a little more like synchronous code, which can make it easier to understand and reason about.