MEAN Stack Interview Questions and Answers 2023 will help you to get a job as a MEAN stack developer in India and you can take into consideration the various interview questions asked by the authorities for the job of mean stack developer if you are planning to become a MEAN stack developer in the upcoming future. It is important to have perfect knowledge regarding the types of questions that are caused by the concerned authorities before directly jumping into the interview. There are a lot of questions that can be asked by the concerned authorities related to the mean stack development Technology and given below we are sharing the same.
List of MEAN Stack Interview Questions and Answers 2023
- What do you mean by MEAN Stack?
- What is the abbreviation for MEAN?
MEAN is the abbreviation for ExpressJS, AngularJS, MongoDB and Node.js
- What do you mean by MongoDB?
MongoDB is a document-oriented database used for storing high volumes of data. It is classified as a NoSQL database with the scalability and flexibility that it provides for querying and indexing.
- What do you mean by ExpressJS?
ExpressJS or Express is an essential and moderate web framework of Node.js used for building applications, websites, and backends. It is a free and open-source framework available under MIT license.
- What do you mean by AngularJS?
- What do you mean by Node.JS?
- Is Node.Js wholly based on a single thread?
- What do you mean by the working mechanism of Node.Js?
It is interesting to note that a Node.Js application facilitates the creation of a single thread when it is activated. Whenever the Node.Js receives a request, it first completes the processing before moving on to the next request processing. It is also important to mention here that Node.Js works by using the event loop. It also uses call-back functions and handles multiple requests that are coming from the user. In the working procedure of Node.Js, an event loop always plays an essential role. An event loop is also known as a function that instigates all the event handlers. Hence, lots of work are done on the back-end. It is also important to note that while processing a request, Node.Js usually attaches a call-back function. When the response is ready, the event triggers the callback function to send the response to the queries of the user.
- What do you mean by the feature of call back from the perspective of Node.Js?
Node.Js makes extensive use of callbacks which enables it to trigger it at the execution of a given task. In this context, it is important to note that a majority of the APIs of the Node.Js is written in such a manner that it supports the feature of callbacks. Become a MEAN stack developer now! Once the file read procedure gets completed, it would ask the call back function and can pass the contents of the file. Hence, it is evident that there is no wait or blocking due to the existence of File I/O. This is the reason that Node.js can be highly scalable as it is involved in processing a higher number of requests without waiting for the function to give back the result that is expected.
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