Top Trending Interview Questions for Full Stack Developer


The process of finding a good full stack developer is not easy and also time-consuming, as interviewers have to take into account the skillset, experience, culture fit, and many more qualities and capabilities in a candidate. Being a full-stack developer, it is essential to keep updated with the changes in the industries. In order to get your dream job, it is most important for you to know what interviewers are looking for in a candidate. You must need to be sure that your core skills are up-to-date and also you should have good understanding of the various frameworks and languages.


There are many factors to consider when attending an interviewing, but the most important thing is to understand which skillset are you aiming to invest in.
The top trending interview questions asked by the interviewer are:


1. What is MVC and MVP and how is MVC different from MVP?
MVC refers to Model View Controller. It refers to an architectural pattern which is used to develop Java Enterprise Applications. It splits an application into three logical components i.e., Model, View, and Controller. It separates the business-specific logic (Model component) from the presentation layer (View component) from one another. The model component contains data and logic related to it. The View component is liable for displaying model objects inside the interface. The Controller receives the input and calls model objects supported handler mapping. It also passes model objects to views so as to display output inside the view layer.
MVP stands for Model View Presenter. It is derived from the MVC architectural pattern. It adds an additional layer (known as indirection) to the architectural pattern that splits the View and Controller into the View and Presenter. The role of Controller is replaced with a Presenter. It exists at an equivalent level as View in MVC. It contains UI business logic for the View. The invocations received from the View is directly sent to the Presenter. It maintains the action (events) between View and Model. The Presenter does not directly communicate with the View but communicates through an interface.
The difference between MVC and MVP architectural pattern is that in MVC architectural pattern Controller doesn't pass the info from the Model to the View. It only notifies the View to urge the info from the Model itself. While in MVP architectural pattern the View and Model layers are connected with one another. The presenter itself receives the info from the Model and sends it to the View to point out. MVC is usually utilized in web-frameworks while MVP is employed in app development. [Source from Google].


2. What do you mean by pair programming?
Pair programming (a fundamental aspect of programming) is a rapid software development technique in which two developers work together on the same machine (system). The developer who writes the code is known as the driver and the developer who reviews (checks code, proofread, and spell checks) the code is known as the navigator. The programming technique is more efficient and coding mistakes are reduced to minimum. The disadvantage of pair programming is that it increases the value.


3.What do you understand by CORS?
CORS is referred as Cross-Origin Resource Sharing. It is a W3C standard and HTTP-header-based mechanism. It permits a server to point the other origins (like domain, port, etc.) rather than the requested one. In simple words, it enables one website to access the resources of another website using JavaScript. It also supports secure cross-origin requests and transfers data between servers and browsers. Advanced browsers use CORS in APIs. It is more flexible and safe as compared to JSONP (JSON with Padding). It also provides better web service integration.

[Source from Google].


4. How to make a website work more efficiently?
By using the following methods, we can make a website work more efficiently and effectively:
• By reducing DNS lookup
• By avoiding URL redirects
• By avoiding duplication of codes
• By avoiding unnecessary images
• By leveraging browser caching
• Deferring parsing of JavaScript
• Avoiding inline JavaScript and CSS
• By using srcset for responsive images
• By placing all assets on a cookie-free domain, preferably using a CDN.


5.How do you reduce the load time of a web application?
Some of the following are listed which are used to reduce the load time of a web application:
• By optimizing the image size and format
• By compressing and optimizing the content
• By avoiding redirects
• By cache the web page
• By minimizing the HTTP requests
• By optimizing dependencies
• By putting stylesheet reference at the top
• By placing script reference at the bottom
• By putting JavaScript and CSS externally

[Source from Google].

 

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