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Top Full Stack Developer Interview Questions For Beginners
Top Full Stack Developer Interview Questions For Beginners

September 22, 2022

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Introduction to Full Stack Developer

 

In general, a web developer with full-stack capabilities can build both client and server applications. Simply, full-stack developers are knowledgeable about all the technologies used to create websites. Front-end developers are responsible for creating and designing server-side (back-end) applications and client-side (front-end) web architecture. They also collaborate with graphic designers to create web design elements, develop APIs and RESTful services, test and debug software, and ensure cross-platform optimization, among other duties.

 

 They are an expert in HTML and CSS and also knows how to:

  • Create a browser (like using JavaScript, Angular or jQuery,)
  • Configure a server (like using PHP, ASP, Python, or Node)
  • Build a database (like using SQL, SQLite, or MongoDB)



 

Let's now examine the most typical Full Stack Developer interview questions for aspirants: 

Q. 1) What tools and languages would you need to create a project from scratch? What skills should a full-stack developer possess?

 

A full-stack developer needs to have the following knowledge:

 

  • Full-stack developers should be proficient in multiple programming languages, including Java, Python, PHP, Ruby, C++, and others.
  • Front-end technologies: You must conversate with HTML5, CSS3, JavaScript, and other front-end technologies. It's also crucial to be familiar with third-party libraries like jQuery, Ajax, Angular, ReactJS, etc.
  • Frameworks: Expertise with a range of development frameworks, such as Spring, Spring Boot, Django, MyBatis, PHP, Hibernate, and others, is required.
  • As a full-stack developer, DBMS (Database Management Systems) technologies like MySQL, SQLite, Oracle, and MongoDB should be familiar to you. Understanding the fundamentals of caching technologies like varnish, Memcached, and Redis is beneficial.
  • Design Knowledge: If you want to succeed as a Full-Stack web developer, you must have solid design knowledge. The individual should also be familiar with prototyping and UX/UI design fundamentals.
  • Server: Knowledge of Apache or NGINX would be advantageous. When managing servers, having solid Linux knowledge is quite helpful.

 

For detailed information on these tools used by developers, check out the top full stack developer course

Q. 2) Which language do full-stack developers favor the most?

 

Programmers who work on the full stack use a variety of languages. An applicant should ideally be fluent in various languages, preferably some for front-end design and others for back-end maintenance. Full Stack developers must be knowledgeable in at least two to three of the most widely used languages, such as Java, Python, Ruby, PHP, C++, etc., because they work with multiple tools and applications.

 

Q. 3) Explain Pair Programming.

In pair programming, two programmers collaborate on a single machine. One programmer will operate as the driver who programmes during the development process, while another will be the observer (navigator) who will make sure the code is written correctly, proofread it, and spell-check it while also determining where to go next. The driver can switch to observer mode at any moment and vice versa.

 

Q. 4) What do you mean by CORS (Cross-Origin Resource Sharing)?

Cross-origin resource sharing is referred to as CORS. It's a browser feature that permits restricted access to resources from other domains by web pages in one domain (cross-domain requests). As a result, scripts running on a browser client can communicate with and access resources from other origins. Doing so broadens and gives the SOP more options (Same-Origin Policy). Same-origin rules limit a website's access to resources outside its source domain. For instance, the SOP will prevent a JavaScript application from calling an API (Application Programming Interface) that is hosted on a different domain. 

 

Q. 5) What is Callback Hell?

Callback Hell, or Pyramid of Doom, is a common anti-pattern seen in asynchronous programming code (multiple functions running simultaneously). This term describes many nested "if" statements or functions. Callback hell is a circumstance in which you have multiple asynchronous functions. Those functions depend on one another, so that it could get messy with so many callback functions nested in many layers. The use of callback functions results in code that is hard to understand and maintain and has the appearance of a pyramid.

 

Q. 6) Explain Long Polling.

Long polling is a web application development technique to push information/data from servers to clients as quickly as possible. Long-polling maintains the connection between the two when a request is made from the client to the server. This connection is maintained until the information from the server is ready to be transmitted to the client. When a server receives a request from a client, the connection is not immediately terminated; the connection is ended once the server has returned the data to the client or when a timeout threshold is reached (connection timeout).

Q. 7) What are the latest trends in Full Stack Development? Also, how do you stay up to current on the latest industry trends?

 

To succeed, every business needs evolving technology, whether it be mobile or web application development.This is why they hire front-end developers, back-end developers, or full-stack developers, depending on their technology needs. Candidates who are interested in full-stack development should be aware of the following developments, according to industry experts:

  • The rise in frameworks and libraries like ReacJs and VueJs, progressive apps, real-time web apps, and mobile web development.
  • Enhancements to JavaScript are beneficial to programming.
  • The emergence of a more compatible extension.

Q. 8) State difference between GraphQL and REST (Representational State Transfer).

REST (Representational State Transfer) has been a common architectural technique to create APIs (Application Programming Interfaces) for decades, but the rise of GraphQL in recent years threatens to derail REST. REST and GraphQL both strive to transport data through internet protocols such as HTTP.

 

If you’re a full stack beginner or want to make a career shift, upskill yourself with the best Full Stack developer course with placement.  Master the skills, become portfolio ready and crack MAANG interviews. 

 

 

 


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