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Node.js Online Test

Topics Covered

  • Javascript Engine
  • Packages
  • Directories
  • Sessions

Useful for hiring

  • Node.JS Developer
  • Node JS Engineer
  • Front End Developer

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After making the appropriate corrections, it was observed that the output of the stream was just an integer. The stream should output a Number object.
Choose the options that will enable the same.

Note: There can be multiple correct answers to this question.

    • In the _flush method, instead of doing this.push(checksumBuffer), do this.push(this._checkSumSoFar);

    • The objectMode property of the options object in the constructor must be set to true

    • The readObjectMode property of the options object in the constructor must be set to true

    • The writeObjectMode property of the options object in the constructor must be set to true


What behavior of node is depicted by the output generated by the given code?

}, 100);


    • Multi Threaded

    • Synchronous

    • Single Threaded

    • Asynchronous


In a node application, N Fibonacci number has to be generated where N is a very large number.

What should be the preferred method to store the output of this application in the file?

(fs is the instance of the file system)

    • fs.write()

    • fs.createWriteStream()

    • fs.writeSync()

    • fs.writeFile()

Test details:

Node.js online test helps hiring managers & recruiters to find the best suitable candidate by assessing his/her expertise on Node.js. Online NodeJS test questions are designed & validated by industry experts to assess & hire Node JS developer as per the industry standards.

This Node JS interview test can be taken online by candidates from anywhere in the comfort of their time zone. Node JS coding assessment test may contain MCQ's (Multiple Choice Questions), MAQ's (Multiple Answer Questions), Fill in the Blank, Descriptive, Whiteboard Questions, Audio / Video Questions, True or False.

Test Duration: 20 Minutes

No. of Questions: 20

Test description:

Node.js is an open-source, cross-platform JavaScript run-time environment that executes JavaScript code outside the browser and is designed to build scalable network applications. Node.js helps developers to use JavaScript to write command line tools. It also enables running scripts server-side to produce dynamic web page content before the page is sent to the user's web browser.
Why use Interview Mocha’s Node.js online test?
Node.js online test helps employers in many ways including hiring job-fit candidate within a short time span, taking unbiased employee performance appraisal decisions and reduce hassle in mass recruitment. Online NodeJS test can be used to assess candidates on different skill-set. You can use existing skill-set or request us to make custom-made skill-set depending on your job requirement.

Online Node JS test helps to screen the candidates who possess traits as follows:

1.  Excellent working knowledge of  JavaScript 
2.  Ability to work on Node.js and its frameworks
3.  Experience of working on asynchronous programming
4.  Ability to work with server-side templating languages & CSS pre-processors
5.  Strong knowledge of data structures, algorithms, HTML5 & CSS
Interview Mocha's powerful reporting & intelligent analytics will help you overview the candidate's performance in each section of Node JS coding test within a glance.

You can use our role-based access control feature to restrict system access based on the roles of individual users within the recruiting team. Features like window violation and webcam proctoring help detect cheating while you conduct Node JS technical test.

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