Systems Support Alternatives Backend Developer Lead Interview Questions and Answers

Q1. 1)what is async and await.
Ans. 
Async and await are keywords used in asynchronous programming in JavaScript.
• Async is used to define a function that returns a promise.

• Await is used to pause the execution of a function until a promise is resolved.

• Async/await makes asynchronous code look and behave like synchronous code.

• Example: async function getData() { const response = await fetch('https://example.com/data'); return response.json(); }
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Q1. 1)why nodejs is more popular
Ans. 
Node.js is popular due to its event-driven, non-blocking I/O model and ability to handle large amounts of data.
• Node.js allows for faster and more efficient development due to its use of JavaScript on both the front-end and back-end.

• Node.js has a large and active community, with many open-source libraries and modules available.

• Node.js is scalable and can handle high traffic and large amounts of data, making it a popular...read more
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Create crud operation using angular,nodejs,mysql

Q1. Coding question base on previous programing experience
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Q1. Final round asked about previous experience
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