Nuclear Power Corporation of India Technical Support Engineer Interview Questions and Answers

Q1. What is node js?
Ans. 
Node.js is a runtime environment that allows you to run JavaScript code outside of a web browser.
• Node.js is built on Chrome's V8 JavaScript engine.

• It uses an event-driven, non-blocking I/O model.

• Node.js is commonly used for building server-side applications.

• It has a large ecosystem of open-source libraries and frameworks like Express.js.
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Q2. What is event loop?
Ans. 
Event loop is a mechanism that allows a program to efficiently handle multiple events or tasks concurrently.
• Event loop is commonly used in asynchronous programming to manage tasks that may take varying amounts of time to complete.

• It continuously checks for events or tasks in a queue and executes them one by one.

• Event loop helps prevent blocking of the main thread by allowing non-blocking execution of tasks.

• Popular exam...read more
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Q3. Difference between callback and promise?
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Callback is a function passed as an argument to another function to be executed later, while a promise is an object representing the eventual completion or failure of an asynchronous operation.
• Callback is used in traditional asynchronous programming, while promises are used in modern asynchronous programming.

• Callbacks can lead to callback hell or pyramid of doom, while promises provide better readability and error hand...read more
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Q4. What is middlewares in node js?
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Middlewares in Node.js are functions that have access to the request and response objects, and can modify or terminate the request-response cycle.
• Middlewares are functions that are executed in the middle of the request-response cycle.

• They can perform tasks like parsing request data, logging, authentication, etc.

• Middlewares can be added using app.use() method in Express framework.

• Example: app.use(bodyParser.json()) to p
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Q5. What is event emitter?
Ans. 
Event emitter is a pattern used to handle and respond to events in software development.
• Event emitter is a design pattern commonly used in Node.js for handling events.

• It allows objects to subscribe to events and be notified when those events occur.

• Event emitter is often used for asynchronous programming and decoupling components.

• Example: EventEmitter class in Node.js can be used to create custom events and handle them.
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Tomarrow, power system

Machine power system drive

Apptitude test is first round

GD is my second round

Q1. Tell me about yourself.
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Q2. Why should we hire you
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Q3. What is your family background
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Q4. Why are you looking for a change
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Q5. What are your strength and weekness
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Leetcode medium kind questions is good

Q1. Tell me about yourself
Ans. 
I am a dedicated and experienced Technical Support Executive with a strong background in troubleshooting and customer service.
• Over 5 years of experience in providing technical support to customers

• Proficient in troubleshooting hardware and software issues

• Excellent communication skills and ability to explain technical concepts to non-technical users

• Certified in ITIL and experienced in using help desk software like Zendes...read more
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Q2. How many languages you know
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I am fluent in three languages: English, Spanish, and French.
• Fluent in English, Spanish, and French

• Can communicate effectively in all three languages

• Have experience providing technical support in multiple languages
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Q1. Tell. Me about yourself
Ans. 
Experienced Technical Support Executive with a background in troubleshooting software and hardware issues.
• Over 5 years of experience in providing technical support to customers

• Proficient in diagnosing and resolving software and hardware issues

• Skilled in communicating technical information to non-technical users

• Certified in ITIL and CompTIA A+

• Previous experience in managing a team of support technicians
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Q2. Previous work experience
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I have 2 years of experience in technical support roles, assisting customers with troubleshooting and problem-solving.
• Provided technical support via phone, email, and chat

• Resolved hardware and software issues for customers

• Assisted with network configurations and troubleshooting

• Documented customer interactions and solutions for future reference
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Q3. Talk about a topic for 3 minutes
Ans. 
The impact of artificial intelligence on customer service
• AI chatbots can provide instant responses to customer queries

• AI can analyze customer data to personalize interactions

• AI can help predict customer behavior and improve service efficiency
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Q4. Final year project
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Q1. Tell me about yourself
Ans. 
I am a dedicated and experienced Technical Support Executive with a strong background in troubleshooting and customer service.
• Over 5 years of experience in providing technical support to customers

• Proficient in troubleshooting hardware and software issues

• Excellent communication skills and ability to explain technical concepts to non-technical users

• Strong problem-solving skills and ability to work under pressure

• Certified...read more
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Q2. About your hobby
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Q3. Details in resume
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