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Xamarin Node.js interview questions.
Only challenges
- 2.
What is Node.js?
Answer:
- 3.
What are the two types of API functions in Node.js?
Answer:
- 4.
What is an error-first callback?
Answer:
- 5.
What is Callback Hell?
Answer:
- 6.
What is control flow function?
Answer:
- 7.
What are Event Listeners?
Answer:
- 8.
If Node.js is single threaded then how it handles concurrency?
Answer:
- 9.
Could we run an external process with Node.js?
Answer:
- 10.
What are the key features of Node.js?
Answer:
- 11.
What is the difference between Nodejs, AJAX, and jQuery?
Answer:
- 12.
What are the core modules of Node.js?
Answer:
- 13.
What is global installation of dependencies?
Answer:
- 14.
What do you mean by Asynchronous API?
Answer:
- 15.
What are the benefits of using Node.js?
Answer:
- 16.
What is libuv?
Answer:
- 17.
What is V8?
Answer:
- 18.
What is the difference between returning a callback and just calling a callback?
Answer:
- 19.
List out the differences between AngularJS and NodeJS?
Answer:
- 20.
Is Node a single threaded application?
Answer:
- 21.
What's the difference between operational and programmer errors?
Answer:
- 22.
How you can monitor a file for modifications in Node.js ?
Answer:
- 23.
How to make Post request in Node.js?
Answer:
- 24.
What is Callback?
Answer:
- 25.
What is Chaining in Node?
Answer:
- 26.
What are the global objects of Node.js?
Answer:
- 27.
How to use Buffer in Node.js?
Answer:
- 28.
How can you avoid callback hells?
Answer:
- 29.
What is N-API in Node.js?
Answer:
- 30.
Are you familiar with differences between Node.js nodules and ES6 nodules?
Answer:
- 31.
What is the purpose of setTimeout function?
Answer:
- 32.
How do you debug Node.js applications?
Answer:
- 33.
What is purpose of Buffer class in Node?
Answer:
- 34.
How Node prevents blocking code?
Answer:
- 35.
What's the event loop?
Answer:
- 36.
How to avoid callback hell in Node.js?
Answer:
- 37.
Explain how does Node.js work?
Answer:
- 38.
How does Node.js handle child threads?
Answer:
- 39.
What is the relationship between Node.js and V8?
Answer:
- 40.
Explain the concept of Domain in Node.js
Answer:
- 41.
What is REPL in context of Node?
Answer:
- 42.
What is stream and what are types of streams available in Node.js?
Answer:
- 43.
What are streams?
Answer:
- 44.
What is Event Loop?
Answer:
- 45.
What is Event Emmitter?
Answer:
- 46.
What is the preferred method of resolving unhandled exceptions in Node.js?
Answer:
- 47.
What is a blocking code?
Answer:
- 48.
When should we use Node.js?
Answer:
- 49.
When should I use EventEmitter?
Answer:
- 50.
What is difference between synchronous and asynchronous method of fs module?
Answer:
- 51.
What are the use cases for the Node.js "vm" core module?
Answer:
- 52.
Rewrite promise-based Node.js applications to Async/Await
Answer:
- 53.
How to gracefully Shutdown Node.js Server?
Answer:
- 54.
Why to use Buffers instead of binary strings to handle binary data ?
Answer:
- 55.
How can you listen on port 80 with Node?
Answer:
- 56.
How the V8 engine works?
Answer:
- 57.
Does Node.js support multi-core platforms? And is it capable of utilizing all the cores?
Answer:
- 58.
Is it possible to use "Class" in Node.js?
Answer:
- 59.
What is LTS releases of Node.js why should you care?
Answer:
- 60.
Is Node.js entirely based on a single-thread?
Answer:
- 61.
When to not use Node.js?
Answer:
- 62.
What is Piping in Node?
Answer:
- 63.
What is the purpose of __filename variable?
Answer:
- 64.
What's the difference between dependencies, devDependencies and peerDependencies in npm package.json file?
Answer:
- 65.
How would you handle errors for async code in Node.js?
Answer:
- 66.
Can Node.js work without V8?
Answer:
- 67.
What are async functions in Node? Provide some examples.
Answer:
- 68.
What are the timing features of Node.js?
Answer:
- 69.
Explain usage of NODE_ENV
Answer:
- 70.
What's a stub? Name a use case.
Answer:
- 71.
Name some of the events fired by streams.
Answer:
- 72.
Is Node.js entirely based on a single-thread?
Answer:
- 73.
What tools can be used to assure consistent code style?
Answer:
- 74.
How does the cluster module work? What’s the difference between it and a load balancer?
Answer:
- 75.
How does libuv work under the hood?
Answer:
- 76.
Explain what is Reactor Pattern in Node.js?
Answer:
- 77.
Can Node.js use other engines than V8?
Answer:
- 78.
Why Node.js devs tend to lean towards the Module Requiring vs Dependency Injection?
Answer:
- 79.
How to solve "Process out of Memory Exception" in Node.js ?
Answer:
- 80.
How would you scale Node application?
Answer:
- 81.
What is the difference between process.nextTick() and setImmediate() ?
Answer:
- 82.
Explain some Error Handling approaches in Node.js you know about. Which one will you use?
Answer:
- 83.
What is the purpose of using hidden classes in V8?
Answer:
- 84.
Why do we need C++ Addons in Node.js?
Answer:
- 85.
Why should you separate Express 'app' and 'server'?
Answer:
- 86.
What is V8 Templates?
Answer:
- 87.
How V8 compiles JavaScript code?
Answer:
- 88.
How many threads does Node actually create?
Answer:
- 89.
Provide some example of config file separation for dev and prod environments
Answer:
- 90.
How do you convert an existing callback API to promises?
Answer:
- 91.
Consider following code snippet
Answer:
- 92.
Explain the result of this code execution
Answer:
- 93.
Rewrite the code sample without try/catch block
Answer:
- 94.
What will happen when that code will be executed?
Answer:
- 95.
Explain the result of this code execution
Answer:
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A database is an organized collection of data, generally stored and accessed electronically from a computer system. Where databases are more complex they are often developed using formal design and modeling techniques. Here is a list of coding interview questions on Databases to help you g...
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