{"id":25536671,"date":"2022-08-07T13:57:34","date_gmt":"2022-08-07T08:27:34","guid":{"rendered":"https:\/\/entri.app\/blog\/?p=25536671"},"modified":"2024-05-21T17:23:12","modified_gmt":"2024-05-21T11:53:12","slug":"top-full-stack-developer-interview-questions","status":"publish","type":"post","link":"https:\/\/entri.app\/blog\/top-full-stack-developer-interview-questions\/","title":{"rendered":"Top Full Stack Developer Interview Questions (2024)"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_79_2 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-69de3b4a50878\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-69de3b4a50878\"  aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/entri.app\/blog\/top-full-stack-developer-interview-questions\/#Full_Stack_Developer_Interview_Questions_for_Freshers\" >Full Stack Developer Interview Questions for Freshers<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/entri.app\/blog\/top-full-stack-developer-interview-questions\/#Full_Stack_Developer_Interview_Questions_for_Experienced\" >Full Stack Developer Interview Questions for Experienced<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/entri.app\/blog\/top-full-stack-developer-interview-questions\/#Full_Stack_Developer_MCQ_Questions\" >Full Stack Developer MCQ Questions<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/entri.app\/blog\/top-full-stack-developer-interview-questions\/#full_stack_development_course_online_with_100_placement_assistance\" >full stack development course online with 100% placement assistance!<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/entri.app\/blog\/top-full-stack-developer-interview-questions\/#Conclusion\" >Conclusion<\/a><\/li><\/ul><\/nav><\/div>\n<section class=\"ibpage__articles\">\n<article>What is it like to go into the interview process for a Full-Stack Developer role? It is quite common to feel anxious at first, especially if this is your first time on the hot seat. One of the most popular and hottest professions in the tech industry is a Full Stack Development role. Full-stack developers do not only specialize in front-end and back-end development but are also experts with a wide range of skill sets and knowledge. Its high level of responsibility makes it one of the most important careers in tech and companies are willing to pay handsomely for those with the right skillset and diverse knowledge. Likewise, if you&#8217;re thinking about a <a href=\"https:\/\/entri.app\/course\/full-stack-developer-course\/\">career in Full Stack Development<\/a>, the future is yours. The InterviewBit team has put together a list of 30+ full stack developer interview questions and answers that will help you prepare for this role. These questions have been hand-picked based on what you will likely encounter in the interview.<\/article>\n<article><\/article>\n<div id=\"freshers\">\n<h2><span class=\"ez-toc-section\" id=\"Full_Stack_Developer_Interview_Questions_for_Freshers\"><\/span><strong>Full Stack Developer Interview Questions for Freshers<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<section id=\"full-stack-developer-skills-required-to-develop-project-from-scratch\" class=\"ibpage-article-header\">\n<h3><strong>1. To develop a project from scratch, what technologies and languages would you need or what skills a full stack developer should have?<\/strong><\/h3>\n<article class=\"ibpage-article\">A\u00a0<strong>full-stack developer<\/strong>\u00a0must be familiar with the following:<\/p>\n<ul>\n<li><strong>Programming Languages:<\/strong>\u00a0Full-stack developers should be competent in more than one programming language, such as Java, Python, PHP, Ruby, C++, etc.<\/li>\n<li><strong>Front End technologies:<\/strong>\u00a0You should be familiar with front-end technologies such as HTML5, CSS3, JavaScript, etc. Knowledge of third-party libraries such as jQuery, Ajax, Angular, ReactJS, etc., is also important.<\/li>\n<li><strong>Frameworks:\u00a0<\/strong>This requires proficiency in a variety of development frameworks, including Spring, Spring Boot, Django, MyBatis, PHP, Hibernate, and others.<\/li>\n<li><strong>Databases and caches:\u00a0<\/strong>As a full stack developer, you should also know about various DBMS (Database Management Systems) technologies like MySQL, SQLite, Oracle, and MongoDB. It is helpful to have a basic understanding of caching mechanisms like redis, memcached, varnish.<\/li>\n<li><strong>Design Ability:<\/strong>\u00a0Having a good understanding of design is also important if you wish to become a successful Full-Stack web developer. Moreover, the person should be aware of the principles of prototyping and UX\/UI design.<\/li>\n<li><strong>Server:\u00a0<\/strong>Experience with Apache or NGINX would be beneficial. Good knowledge of Linux helps enormously when administering servers.<\/li>\n<\/ul>\n<p style=\"text-align: center;\"><a href=\"https:\/\/entri.app\/course\/full-stack-developer-course\/\" target=\"_blank\" rel=\"noopener\"><strong>Click here to know the fundamentals of Full Stack Development!<\/strong><\/a><\/p>\n<\/article>\n<\/section>\n<section id=\"most-preferred-full-stack-developer-languages\" class=\"ibpage-article-header\">\n<h3><strong>2. Which language is the most preferred by full-stack developers?<\/strong><\/h3>\n<article class=\"ibpage-article\">Full Stack Developers utilize several programming languages. Ideally, a candidate should be fluent in several languages, preferably some for designing the front end and others for fixing the back end. Since Full Stack developers work with a variety of technologies and applications, they must be proficient in at least two to three of the most popular languages such as\u00a0<strong>Java, Python, Ruby, PHP, C++, etc<\/strong>.<\/article>\n<\/section>\n<section id=\"most-preferred-full-stack-developer-languages\" class=\"ibpage-article-header\">\n<article><\/article>\n<\/section>\n<section id=\"explain-pair-programming\" class=\"ibpage-article-header\">\n<h3><strong>3. Explain Pair Programming.<\/strong><\/h3>\n<article class=\"ibpage-article\">In pair programming, two programmers share only one machine and work together. During the development process, one programmer will be the driver who codes and another will act as the observer (navigator) who will make sure the code is written correctly, proofread and spell-check it, while also deciding where to go next. Roles can be swapped at any time: the driver becomes the observer and vice versa. You can also call it &#8220;pairing&#8221;, &#8220;paired programming&#8221;, or &#8220;programming in pairs&#8221;.<\/article>\n<\/section>\n<\/div>\n<div id=\"freshers\">\n<section id=\"cors-cross-origin-resource-sharing\" class=\"ibpage-article-header\">\n<h3><strong>4. What do you mean by CORS (Cross-Origin Resource Sharing)?<\/strong><\/h3>\n<article class=\"ibpage-article\">CORS refers to cross-origin resource sharing. It&#8217;s a browser mechanism that allows web pages in one domain to have controlled access to resources in other domains (cross-domain requests). This allows scripts that are run on a browser client to interact with and access resources from other origins. In doing so, it extends and provides greater flexibility to the SOP (Same-Origin Policy). Same-origin policies restrict the ability of a website to access resources outside of its source domain. For example, a JavaScript app that wants to make a call to an API (Application Programming Interface) that runs on another domain will be blocked due to the SOP. A CORS policy was implemented to circumvent restrictions caused by same-origin policies.\u00a0<\/article>\n<\/section>\n<\/div>\n<\/section>\n<section class=\"ibpage__articles\">\n<div id=\"freshers\">\n<section id=\"callback-hell\" class=\"ibpage-article-header\">\n<h3><strong>5. What is Callback Hell?<\/strong><\/h3>\n<article class=\"ibpage-article\">Callback Hell, or Pyramid of Doom, is a common anti-pattern seen in asynchronous programming code (multiple functions running at the same time). This slang term describes a large number of nested &#8220;if&#8221; statements or functions. In simple terms, Callback hell is a situation where you have multiple asynchronous functions. Those functions depend on one another, so it could get quite messy with so many callback functions nested in so many layers. The use of callback functions leaves you with code that is difficult to read and maintain, and looks like a pyramid as shown below:This also makes it more difficult to identify the flow of the application, which is the main obstacle to debugging, which is the reason for the famous name of this problem: Callback Hell.<\/article>\n<article><\/article>\n<\/section>\n<article><\/article>\n<section id=\"explain-long-polling\" class=\"ibpage-article-header\">\n<h3><strong>6. Explain Long Polling.<\/strong><\/h3>\n<article class=\"ibpage-article\">Long polling is defined as a web application development technique used to push information\/data from servers to clients as quickly as possible. When a request is made from the client to the server, long-polling maintains the connection between the two. This connection is maintained until the information is ready to be sent from the server to the client. \u00a0Once a server receives a request from a client, the connection does not close immediately; the connection is only closed once the server has sent the data back to the client or when a timeout threshold has been reached (connection timeout).<\/article>\n<\/section>\n<section id=\"full-stack-development-latest-trends\" class=\"ibpage-article-header\">\n<h3 style=\"text-align: center;\"><a class=\"btn btn-default\" href=\"https:\/\/entri.app\/course\/full-stack-developer-course\/\">learn full stack development online ! enroll now !!<\/a><\/h3>\n<h3><strong>7. Can you tell me what are the latest trends in Full Stack Development? Also, how do you keep yourself updated about the new trends in the industry?<\/strong><\/h3>\n<article class=\"ibpage-article\">Each business needs emerging technology to thrive, whether it is mobile or web application development. This is why they hire front-end developers,\u00a0back-end developers, or full-stack developers depending on their technology needs. According to industry experts, candidates who are passionate about full-stack development should be aware of these trends:<\/p>\n<ul>\n<li>The rise in frameworks and libraries like ReacJs and VueJs, progressive apps, \u00a0real-time web apps, and mobile web development.<\/li>\n<li>Enhancements to JavaScript are beneficial to programming<\/li>\n<li>The emergence of a more compatible extension.<\/li>\n<\/ul>\n<p>The interviewer may ask you how you keep updated with new trends in the industry. You can explain how you gain your knowledge and understanding by learning from friends, colleagues, or online. That&#8217;s an appropriate way of answering the question. This is a good time to show off any personal projects you have undertaken that apply your skills. Also, you might mention the webinars or forums that you attend regularly.<\/p>\n<\/article>\n<\/section>\n<section id=\"rest-vs-graphql\" class=\"ibpage-article-header\">\n<h3><strong>8. State difference between GraphQL and REST (Representational State Transfer).<\/strong><\/h3>\n<article class=\"ibpage-article\">For decades, REST (Representational State Transfer) has been a popular architectural way to design APIs (Application Programming Interfaces), but the popularity of GraphQL over the past few years threatens to topple REST. In general, REST and GraphQL both aim to transfer data over internet protocols including HTTP.<\/p>\n<figure class=\"table\">\n<table>\n<thead>\n<tr>\n<th>GraphQL<\/th>\n<th>REST<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>It is a Query Language for APIs that enables declarative data fetching to provide clients control over which data to retrieve from the API.<\/td>\n<td>It is an API design architectural style that defines a set of constraints to create web services.<\/td>\n<\/tr>\n<tr>\n<td>GraphQL is known for its high predictability. With this, you can send requests to your API and get the exact results you are looking for without having to include anything you don&#8217;t need. GraphQL queries give predictable results, which improves their usability significantly.<\/td>\n<td>On the other hand, REST&#8217;s behaviour depends on the HTTP and URI methods used. API consumers can therefore be unsure of what to expect when calling an endpoint.<\/td>\n<\/tr>\n<tr>\n<td>API security can be ensured by GraphQL, though the security features aren&#8217;t as mature as those of REST. GraphQL, for instance, assists in integrating data validation, but users are left to figure out how to apply authentication and authorization measures.<\/td>\n<td>API security can be enforced in several ways using REST. You can implement multiple methods of API authentication, such as HTTP authentication, to ensure REST API security.<\/td>\n<\/tr>\n<tr>\n<td>With GraphQL, you can retrieve everything you need through a single API request. You can specify the structure of the information you need, and the server will return the same structure to you, so there is no need to over-and under-fetch.<\/td>\n<td>Consequently, since REST APIs have rigid data structures that return the specified data whenever they are accessed, you may end up with unwanted data or have to make multiple requests before getting the right data. As a result, the server&#8217;s response time (to return information) can be prolonged due to these shortcomings.<\/td>\n<\/tr>\n<tr>\n<td>It only supports JSON format.<\/td>\n<td>XML, YAML, JSON, HTML, and other formats are supported, as well.<\/td>\n<\/tr>\n<tr>\n<td>The main use cases of GraphQL are mobile applications and multiple microservices.<\/td>\n<td>Rest is mainly used for simple applications and resource-driven applications.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n<\/article>\n<\/section>\n<section id=\"ci-continuous-integration\" class=\"ibpage-article-header\">\n<h3><strong>9. What is CI (Continuous Integration)?<\/strong><\/h3>\n<article class=\"ibpage-article\">CI (Continuous Integration), as its name implies, is the process of automating and integrating code changes into a single software project, often several times a day. The purpose of this DevOps practice is to enable developers to merge their code changes into a central repository where automated tests and builds can run. Automated tools are used to assert the new code\u2019s correctness before integration. A source code version control system is the crux of the CI process. The version control system is also supplemented with other checks like automated code quality tests, syntax style review tools, and more.<\/p>\n<figure class=\"image image_resized\"><img decoding=\"async\" class=\"\" src=\"https:\/\/d3n0h9tb65y8q.cloudfront.net\/public_assets\/assets\/000\/002\/887\/original\/Continuous_Integration.png?1646403158\" data-src=\"https:\/\/d3n0h9tb65y8q.cloudfront.net\/public_assets\/assets\/000\/002\/887\/original\/Continuous_Integration.png?1646403158\" \/><\/figure>\n<p><strong>Advantages:<\/strong><\/p>\n<ul>\n<li>Integrating regularly has the main benefit of detecting errors quickly and more easily. Since most changes introduced are small, pinpointing the specific change that caused a defect is easy.<\/li>\n<li>As a result of the smaller code changes and easier fault isolations, CI reduces MTTR (Mean Time to Resolution).<\/li>\n<\/ul>\n<\/article>\n<\/section>\n<section id=\"explain-mutlithreading\" class=\"ibpage-article-header\">\n<h3><strong>10. Explain the meaning of multithreading.<\/strong><\/h3>\n<article class=\"ibpage-article\">The thread is an independent part or unit of a process (or an application) that is being executed. Whenever multiple threads execute in a process at the same time, we call this &#8220;multithreading&#8221;. You can think of it as a way for an application to multitask.<\/article>\n<\/section>\n<section id=\"benefits-and-drawbacks-js-use-strict\" class=\"ibpage-article-header\">\n<h3><strong>11. Explain the benefits and drawbacks of using &#8220;use strict&#8221;.<\/strong><\/h3>\n<article class=\"ibpage-article\">In ECMAScript5, a new feature known as strict mode allows you to run a program or function within a strict operating context. Certain actions, therefore, cannot be taken due to this strict context, and more exceptions are thrown. When the &#8220;use strict&#8221; statement is used, the browser is instructed to use &#8220;strict&#8221; mode, which is a more restricted and safer JavaScript feature set. You can specify &#8220;use strict&#8221; at the top of a function to evaluate the JS in strict mode. In strict mode, more errors are thrown and some features are disabled to make your code more robust, clear, and accurate.<\/article>\n<\/section>\n<section id=\"uses-of-docker\" class=\"ibpage-article-header\">\n<h3><strong>12. What are some of the uses of Docker?<\/strong><\/h3>\n<article class=\"ibpage-article\">One of the thorniest problems in software development is dealing with the different environments across different machines and platforms. Using Docker, you can isolate your applications from your infrastructure, which is crucial to delivering software quickly. Developers can package and run their applications into containers, executable components that have all the OS (Operating System) libraries and dependencies needed to run the application in any environment. It does not matter what is installed on the host\u2014containers are lightweight and include everything needed to run applications.<\/p>\n<ul>\n<li>The code has to pass through many different environments as it travels from the developer&#8217;s machine to production. Consequently, each of these environments may be slightly different. Using Docker streamlines code development and deployment, as it provides a consistent environment from development to production.<\/li>\n<li>Docker&#8217;s primary purpose is to simplify configuration. With VM (Virtual Machine), you can run any platform with its configuration on top of your infrastructure. Docker offers the same functionality without the overhead of virtual machines.<\/li>\n<\/ul>\n<p style=\"text-align: center;\"><strong><a href=\"https:\/\/entri.app\/course\/full-stack-developer-course\/\" target=\"_blank\" rel=\"noopener\">Learn Web Development in your Language! Enroll Here!<\/a><\/strong><\/p>\n<\/article>\n<\/section>\n<section id=\"node-js-event-loop\" class=\"ibpage-article-header\">\n<h3><strong>13. Explain event loop in Node.js.<\/strong><\/h3>\n<article class=\"ibpage-article\">The event loop in JavaScript enables asynchronous programming. With JS, every operation takes place on a single thread, but through smart data structures, we can create the illusion of multi-threading. With the Event Loop, any async work is handled by a queue and listener. Consider the diagram below: Therefore, when an async function (or an I\/O) needs to be executed, the main thread relays it to another thread, allowing v8 (Javascript engine) to continue processing or running its code. In the event loop, there are different phases, like pending callbacks, closing callbacks, timers, idle or preparing, polling, and checking, with different FIFO (First-In-First-Out) queues.<\/article>\n<\/section>\n<section id=\"is-there-a-way-to-decrease-the-load-time-of-a-web-application\" class=\"ibpage-article-header\">\n<h3><strong>14. Is there a way to decrease the load time of a web application?<\/strong><\/h3>\n<article class=\"ibpage-article\">Here are some ways to reduce load times for web applications:<\/p>\n<ul>\n<li><strong>Image Optimization:\u00a0<\/strong>The file size of an image can be dramatically reduced by switching to a different file format. For example, GIFs work well for images with few colors, such as logos, JPEG is ideal for images with lots of colors and details, such as photographs, and PNG format is ideal for transparent images with high quality.<\/li>\n<li><strong>Keep JavaScript and CSS in external files:<\/strong>\u00a0Embedding JavaScript and CSS in HTML documents forces them to be downloaded every time the HTML document is loaded. In this case, browser caching is not utilized, and the HTML document becomes larger. This is why you should always place CSS and JavaScript in external files; it is a best practice and simplifies maintenance.<\/li>\n<li><strong>Reducing redirects:\u00a0<\/strong>Too many redirects will delay the loading time of a website. HTTP requests and responses are delayed each time a page redirects. Getting rid of unnecessary redirects on your site will reduce the load time of your site significantly.<\/li>\n<li><strong>Load CSS and JavaScript files asynchronously:\u00a0<\/strong>Your website contains CSS and JavaScript files that can be loaded either synchronously or asynchronously. As part of synchronous loading, each file is loaded sequentially, in the order it appears on your site. As opposed to synchronous loading, asynchronous loading allows multiple files to be loaded simultaneously, boosting the performance of a website.<\/li>\n<li><strong>Minify HTML, CSS, and JavaScript:\u00a0<\/strong>If you optimize the way your files load, your pages will load more quickly. You can do the same when it comes to HTML, CSS, and JavaScript code. By eliminating unnecessary spaces, characters, and comments, you can reduce the size of your files. This will make your web pages load faster.<\/li>\n<\/ul>\n<\/article>\n<\/section>\n<section id=\"explain-dependency-injection\" class=\"ibpage-article-header\">\n<table>\n<tbody>\n<tr>\n<td style=\"text-align: center;\" colspan=\"3\"><span style=\"color: #ffffff;\"><strong>Are you aspiring for a booming career in IT? If YES, then dive in<\/strong><\/span><\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/entri.app\/course\/full-stack-developer-course\/\"><strong>Full Stack Developer Course<\/strong><\/a><\/td>\n<td><a href=\"https:\/\/entri.app\/course\/python-programming-course\/\"><strong>Python Programming Course<\/strong><\/a><\/td>\n<td><a href=\"https:\/\/entri.app\/course\/data-science-and-machine-learning-course\/\"><strong>Data Science and Machine Learning Course<\/strong><\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><strong>15. Explain dependency injection.<\/strong><\/h3>\n<article class=\"ibpage-article\">The Dependency Injection (DI) pattern is a design pattern for implementing the Inversion of Control (IoC). Dependent objects can be created outside of classes and made available to classes in different ways. Three types of classes are involved in Dependency Injection as follows:<\/p>\n<figure class=\"image image_resized\"><img decoding=\"async\" class=\"\" src=\"https:\/\/d3n0h9tb65y8q.cloudfront.net\/public_assets\/assets\/000\/002\/891\/original\/dependency_injection.png?1646403327\" data-src=\"https:\/\/d3n0h9tb65y8q.cloudfront.net\/public_assets\/assets\/000\/002\/891\/original\/dependency_injection.png?1646403327\" \/><\/figure>\n<ul>\n<li>Client Class: A client class (dependent class) is one that depends on the service class.<\/li>\n<li>Service Class: Service (dependency) classes provide services to client classes.<\/li>\n<li>Injector Class: This class injects the objects from the service class into the client class.<\/li>\n<\/ul>\n<\/article>\n<\/section>\n<section id=\"observer-pattern\" class=\"ibpage-article-header\">\n<h3><strong>16. What do you mean by observer pattern?<\/strong><\/h3>\n<article class=\"ibpage-article\">If several objects are tied together in one-to-many relationships, the observer pattern is used. Every time one object is modified, then all of its dependent objects are automatically notified and updated. It falls under the behavioural pattern category. It describes the coupling between the objects and the observer and provides support for broadcast-type communication. The object that observes the state of another object is known as the observer, and the object that is being observed is known as the subject as shown below:<\/p>\n<figure class=\"image image_resized\"><img decoding=\"async\" class=\"\" src=\"https:\/\/d3n0h9tb65y8q.cloudfront.net\/public_assets\/assets\/000\/002\/892\/original\/observer_pattern.png?1646403357\" data-src=\"https:\/\/d3n0h9tb65y8q.cloudfront.net\/public_assets\/assets\/000\/002\/892\/original\/observer_pattern.png?1646403357\" \/><\/figure>\n<\/article>\n<\/section>\n<\/div>\n<div id=\"experienced\" style=\"text-align: left;\">\n<h2><span class=\"ez-toc-section\" id=\"Full_Stack_Developer_Interview_Questions_for_Experienced\"><\/span><strong>Full Stack Developer Interview Questions for Experienced<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<section id=\"blue-green-deployments-vs-rolling-deployments\" class=\"ibpage-article-header\">\n<h3><strong>17. State difference between blue\/green deployment and rolling deployment.<\/strong><\/h3>\n<article class=\"ibpage-article\">Today, the software is rapidly created and features are often changed based on customer needs, and then it is deployed into production. Each organization has its unique way of getting new applications into the production environment. Most organizations follow the standard deployment and release strategies such as Blue-Green and Rolling Deployment.<\/article>\n<article class=\"ibpage-article\">\n<ul>\n<li><strong>Blue-Green Deployment Strategy:<\/strong><\/li>\n<\/ul>\n<p>A deployment strategy like this creates two separate infrastructure environments i.e., blue and green. A blue environment contains older code (old version), while a green environment (production) contains the latest code (new version). There is only one live production environment at any given time.<\/p>\n<p><i>Example:\u00a0<\/i>For instance, the green environment is live and is receiving all user traffic, while the clone (blue) is idle. Once a new version of an application is ready for release, it can be deployed to the blue environment for testing. As soon as the new release passes testing, application traffic is switched from green to blue. Blue then becomes the live production environment, and Green becomes idle, ready for testing the next release.<\/p>\n<figure class=\"image image_resized\"><img decoding=\"async\" class=\"\" src=\"https:\/\/d3n0h9tb65y8q.cloudfront.net\/public_assets\/assets\/000\/002\/893\/original\/Blue-Green_Deployment_Strategy.png?1646403413\" data-src=\"https:\/\/d3n0h9tb65y8q.cloudfront.net\/public_assets\/assets\/000\/002\/893\/original\/Blue-Green_Deployment_Strategy.png?1646403413\" \/><\/figure>\n<ul>\n<li><strong>Rolling Deployment Strategy<\/strong><\/li>\n<\/ul>\n<p>Using this deployment strategy, old versions of an application are completely replaced with the new versions by completely replacing the infrastructure on which they run.<\/p>\n<p><i>Example:<\/i>\u00a0When a new version must be deployed to all nodes, the new version is deployed to the first node while all other nodes handle end-user traffic. As soon as the new version is successfully installed on the first node, it will begin managing end-user traffic while the new version is being installed on the second node. The process is repeated until all nodes have been successfully upgraded to the new version.<\/p>\n<figure class=\"image image_resized\"><img decoding=\"async\" class=\"\" src=\"https:\/\/d3n0h9tb65y8q.cloudfront.net\/public_assets\/assets\/000\/002\/894\/original\/Rolling_Deployment_Strategy.png?1646403432\" data-src=\"https:\/\/d3n0h9tb65y8q.cloudfront.net\/public_assets\/assets\/000\/002\/894\/original\/Rolling_Deployment_Strategy.png?1646403432\" \/><\/figure>\n<\/article>\n<\/section>\n<section id=\"explain-inversion-of-control\" class=\"ibpage-article-header\">\n<h3><strong>18. Explain inversion of control.<\/strong><\/h3>\n<article class=\"ibpage-article\">IoC (Inversion of Control), as the name suggests, is a design principle in software engineering. With IoC, different kinds of controls can be inverted in an object-oriented design to attain loose coupling. The term &#8220;controls&#8221; refers to any other responsibilities a class may have other than its primary responsibility. These include controlling the flow of an application, controlling the creation of objects, or controlling the binding and creation of dependent objects. IoC allows classes to be loosely coupled, making testing and maintenance easier.<\/article>\n<\/section>\n<section id=\"referential-transparency-in-functional-programming\" class=\"ibpage-article-header\">\n<h3><strong>19. What do you mean by referential transparency in functional programming?<\/strong><\/h3>\n<article class=\"ibpage-article\">In functional programming, referential transparency is the key differentiating factor. \u00a0An expression is considered referential transparent if it can be replaced or substituted with the corresponding value it computes or vice-versa without affecting the program\u2019s result.<i><strong>Example:<\/strong><\/i>\u00a0Imagine that we have an expression called four:\u00a0<code>val four= add(1,3)<\/code>If four is used anywhere in our code, it can safely be replaced with add(1,3), 1 + 3 or 4 wherever it appears. Thus, all the expressions below are equivalent in meaning and output:<\/p>\n<pre><code class=\"language-plaintext hljs\">val eight = four + four\r\nval eight_v2 = add(1,3) + add(1,3)\r\nval eight_v3 = 4 + add(1,3)\r\nval eight_v4 = 8<\/code><\/pre>\n<p>If we can swap back-and-forth between these expressions anytime, anywhere, without altering their meaning or output, then an expression is referentially transparent.<\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/entri.app\/course\/full-stack-developer-course\/\" target=\"_blank\" rel=\"noopener\"><strong>Enroll in our certificate program in Full Stack Web Development<\/strong> <\/a><\/p>\n<\/article>\n<\/section>\n<section id=\"normalization-vs-denormalization\" class=\"ibpage-article-header\">\n<h3><strong>20. State difference between normalization and denormalization.<\/strong><\/h3>\n<article class=\"ibpage-article\">Normalization and denormalization are the two main methods of altering the structure of a database.<\/p>\n<figure class=\"table\">\n<table>\n<thead>\n<tr>\n<th>Normalization<\/th>\n<th>Denormalization<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Normalization involves removing redundant data (multiple copies of data) from a database and storing consistent, non-redundant data.<\/td>\n<td>It involves combining data from multiple tables into a single so that it can be queried quickly.<\/td>\n<\/tr>\n<tr>\n<td>It primarily focuses on clearing out unused data and reducing duplicate data and inconsistencies from a database.<\/td>\n<td>On the other hand, denormalization aims to achieve faster query execution by adding data redundancy.<\/td>\n<\/tr>\n<tr>\n<td>During normalization, tables are reduced in number due to the reduction of data in the database.<\/td>\n<td>Denormalization, on the other hand, involves integrating data into the same database and therefore the number of tables to store the data increases.<\/td>\n<\/tr>\n<tr>\n<td>Data integrity is maintained by normalization. A change to the data in the table will not impact its relationship with the other table.<\/td>\n<td>Data integrity is not maintained by denormalization.<\/td>\n<\/tr>\n<tr>\n<td>It optimizes the use of disk space.<\/td>\n<td>It does not optimize disk space.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n<\/article>\n<\/section>\n<section id=\"what-is-a-connection-leak-how-can-you-fix-it-in-java\" class=\"ibpage-article-header\">\n<h3><strong>21. In Java, what is a connection leak? How can you fix this?<\/strong><\/h3>\n<article class=\"ibpage-article\">If a connection is opened and forgotten about, this is known as a &#8220;leak&#8221; since each time it occurs, a connection is no longer available for reuse. Connection leaks occur when some database requests or transactions are not closed properly or are not committed, causing the connections to be abandoned and closed permanently. Java developers commonly experience Connection Leaks when using Connection Pools. In the case where there is a section of code that fails to close a connection properly, a connection will leak from the pool each time the section of code is executed. Eventually, if this situation continues, the pool will run out of connections, which is known as Pool Exhaustion. The application will hang once all available connections have been leaked. We can fix this by closing the connection and paying particular attention to any error handling code.<\/article>\n<article><\/article>\n<article><\/article>\n<\/section>\n<article><strong style=\"color: #1d1f20; font-size: 1.563em;\">22. What is Promise and explain its states?<\/strong><\/article>\n<section id=\"what-is-promise-and-explain-its-states\" class=\"ibpage-article-header\">\n<article class=\"ibpage-article\">Callback functions are functions that can be passed to another function as arguments and executed there to complete a routine or action. Those functions depend on one another, so it could get quite messy with so many callback functions nested in so many layers. This is what is referred to as callback hell. As an alternative to callbacks in JavaScript, promises are used to handle asynchronous operations. In addition to handling multiple asynchronous operations, they provide better error handling than callbacks. Promises can be a better way for a user to read the code effectively and efficiently, especially when that particular code performs multiple asynchronous operations. The Promise object represents the result of an asynchronous operation (or its failure) and the resulting value. The promise is in one of the following states:<\/p>\n<ul>\n<li><strong>Pending:<\/strong>\u00a0In its initial state, neither fulfilled nor rejected.<\/li>\n<li><strong>Fulfilled:<\/strong>\u00a0Indicating that the operation was successful.<\/li>\n<li><strong>Rejected:<\/strong>\u00a0Indicating that the operation failed.<\/li>\n<\/ul>\n<\/article>\n<\/section>\n<section id=\"get-vs-post\" class=\"ibpage-article-header\">\n<h3><strong>23. State the difference between GET and POST.<\/strong><\/h3>\n<article class=\"ibpage-article\">GET and POST are two different HTTP request methods.<\/p>\n<figure class=\"table\">\n<table>\n<thead>\n<tr>\n<th>GET<\/th>\n<th>POST<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>This method is used to request data from a certain resource (via some API URL).<\/td>\n<td>This method is used to send or write data to be processed to a specific resource (via some API URL).<\/td>\n<\/tr>\n<tr>\n<td>If you use the GET method to send data, the data is added to the URL, and a URL can be up to 2048 characters in length. Therefore, it has restrictions on data length.<\/td>\n<td>It does not impose such limitations.<\/td>\n<\/tr>\n<tr>\n<td>In comparison to POST, GET is less secure since data is sent as part of the URL. Passwords and other sensitive information should never be sent using GET.<\/td>\n<td>It is a little safer to use POST than GET because the parameters are not saved in the browser history or the web server logs.<\/td>\n<\/tr>\n<tr>\n<td>Everyone can see the data in the URL.<\/td>\n<td>There is no data displayed in the URL.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n<\/article>\n<\/section>\n<section id=\"explain-restful-api-write-its-usage\" class=\"ibpage-article-header\">\n<h3><strong>24. Explain the Restful API and write its usage.<\/strong><\/h3>\n<article class=\"ibpage-article\">APIs (Application Programming Interfaces) are sets of rules and protocols that define how software programs or devices can communicate with each other. APIs that conform to the design principles of REST, or representational state transfer, are known as REST APIs. REST APIs may also be referred to as RESTful APIs. Using RESTful APIs, developers can create requests and receive responses via an HTTP request. REST API can also be used for mapping data from a cloud platform to a data warehouse or vice versa.<\/article>\n<\/section>\n<section id=\"mean-stack\" class=\"ibpage-article-header\">\n<h3><strong>25. What do you mean by MEAN Stack?<\/strong><\/h3>\n<article class=\"ibpage-article\">MEAN stands for MongoDB, ExpressJS, AngularJS, and Node.js. It is a collection of JavaScript-based technologies for developing web applications. Despite being a stack of different technologies, all of them are based on the JavaScript language. It is an ideal solution for building dynamic websites and applications as it is a very user-friendly stack. With this free and open-source stack, you can quickly and easily build web-based prototypes.<\/article>\n<article><\/article>\n<\/section>\n<section id=\"how-to-prevent-a-bot-from-scraping-your-publicly-accessible-api\" class=\"ibpage-article-header\">\n<article class=\"ibpage-article\"><\/article>\n<\/section>\n<section id=\"what-was-the-best-implementation-or-debugging-you-did\" class=\"ibpage-article-header\">\n<article><\/article>\n<article class=\"ibpage-article\"><strong style=\"color: #1d1f20; font-size: 1.953em;\">Frequently Asked Questions<\/strong><\/article>\n<\/section>\n<\/div>\n<div id=\"faq\">\n<section id=\"how-to-be-full-stack-developer\" class=\"ibpage-article-header\">\n<h3><strong>26. How to be a full stack developer?<\/strong><\/h3>\n<article class=\"ibpage-article\">To\u00a0become a full stack developer, follow these six steps:<\/p>\n<ul>\n<li>Plan your learning path according to your career goals<\/li>\n<li>Learn the fundamentals, necessary technologies, and develop the skills you need to be a full-stack developer and necessary technologies.<\/li>\n<li>Learn from tutorials and videos, but learn to code as well.<\/li>\n<li>Based on what you learn, create your own project.<\/li>\n<li>Make a portfolio of your work.<\/li>\n<li>Start your job search and nail the interview.<\/li>\n<\/ul>\n<\/article>\n<\/section>\n<section id=\"types-of-full-stack-developers\" class=\"ibpage-article-header\">\n<h3><strong>27. How many types of full-stack developers are there?<\/strong><\/h3>\n<article class=\"ibpage-article\">Following are the most common types of full-stack developers based on their specific stacks:<\/p>\n<ul>\n<li>MEAN Stack (MongoDB-ExpressJS-AngularJS-NodeJS).<\/li>\n<li>MERN Stack (MongoDB-ExpressJS-ReactJS-NodeJS).<\/li>\n<li>LAMP Stack (Linux, Apache, MySQL, PHP).<\/li>\n<li>LEMP Stack (Linux, Nginx, MySQL, PHP).<\/li>\n<li>Full-Stack Python.<\/li>\n<li>Full-Stack Elixir.<\/li>\n<li>Full-Stack Django.<\/li>\n<li>Full-Stack Java.<\/li>\n<li>Full-Stack Ruby on Rails.<\/li>\n<\/ul>\n<\/article>\n<\/section>\n<section id=\"which-full-stack-is-the-best\" class=\"ibpage-article-header\">\n<h3><strong>28. Which full stack is best?<\/strong><\/h3>\n<article class=\"ibpage-article\">One of the most popular tech stacks is the MEAN stack (MongoDB-ExpressJS-AngularJS-NodeJS). MEAN stack has many applications, including cloud application development. MongoDB, Express.js, AngularJS, and Node.js are among the JavaScript technologies in MEAN used to build web applications.<\/article>\n<\/section>\n<section id=\"is-full-stack-development-a-good-career\" class=\"ibpage-article-header\">\n<h3><strong>29. Is full-stack development a good career?<\/strong><\/h3>\n<article class=\"ibpage-article\">Definitely, it&#8217;s a great career choice. Having a full-stack developer job is one of the most productive careers you can have, and its high level of responsibility makes it one of the most important careers in tech. Full-stack developers do not only specialize in front-end and back-end development but are also experts with a wide range of skill sets and knowledge. Full Stack Developers are in high demand and companies are willing to pay handsomely for those with the right skillset and diverse knowledge.<\/article>\n<\/section>\n<article>\n<p style=\"text-align: center;\"><a href=\"https:\/\/entri.app\/course\/full-stack-developer-course\/\" target=\"_blank\" rel=\"noopener\"><strong>Learn to code from industry experts! Enroll here<\/strong><\/a><\/p>\n<\/article>\n<section id=\"how-much-do-full-stack-developers-earn\" class=\"ibpage-article-header\">\n<h3><strong>30. How much do full stack developers earn?<\/strong><\/h3>\n<article class=\"ibpage-article\">A Full Stack Developer is one of the most highly paid professionals. In India, the average annual salary for a Full Stack Developer is around \u20b96,66,697. With 1-4 years of experience, a full-stack developer earns an average of INR 6,53,006-10,00,000. Employees with between 5 and 9 years of experience can expect to earn between INR 12 and 17 lakhs per year.<\/article>\n<\/section>\n<\/div>\n<\/section>\n<section id=\"full-stack-developer-mcq-questions\" class=\"ibpage-problems\">\n<h2><span class=\"ez-toc-section\" id=\"Full_Stack_Developer_MCQ_Questions\"><\/span><strong>Full Stack Developer MCQ Questions<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<section class=\"ibpage-problems__item\">\n<div class=\"ibpage-problems__header\">\n<p><strong><span class=\"m-r-5\">1. <\/span>What are the skills a full-stack developer should possess?<\/strong><\/p>\n<\/div>\n<div class=\"ibpage-problems__options\">\n<div class=\"form-check\" data-correct=\"false\"><input name=\"p_18651\" type=\"radio\" \/><label class=\"form-check__label\" for=\"p_18651_a_Well-versed in programming languages such as Java, Python, Ruby, etc.\">Well-versed in programming languages such as Java, Python, Ruby, etc.<\/label><\/div>\n<div class=\"form-check\" data-correct=\"false\"><input name=\"p_18651\" type=\"radio\" \/><label class=\"form-check__label\" for=\"p_18651_a_Familiar with front-end technologies such as HTML5, CSS3, JavaScript, etc.\">Familiar with front-end technologies such as HTML5, CSS3, JavaScript, etc.<\/label><\/div>\n<div class=\"form-check\" data-correct=\"false\"><input name=\"p_18651\" type=\"radio\" \/><label class=\"form-check__label\" for=\"p_18651_a_Proficiency in development frameworks, including Spring Boot, Django, MyBatis, etc.\">Proficiency in development frameworks, including Spring Boot, Django, MyBatis, etc.<\/label><\/div>\n<div class=\"form-check\" data-correct=\"true\"><input name=\"p_18651\" type=\"radio\" \/><label class=\"form-check__label\" for=\"p_18651_a_All of the above\">All of the above<\/label><\/div>\n<\/div>\n<\/section>\n<section class=\"ibpage-problems__item\">\n<div class=\"ibpage-problems__header\">\n<p><strong><span class=\"m-r-5\">2. <\/span>CORS stands for ___.<\/strong><\/p>\n<\/div>\n<div class=\"ibpage-problems__options\">\n<div class=\"form-check\" data-correct=\"false\"><input name=\"p_18652\" type=\"radio\" \/><label class=\"form-check__label\" for=\"p_18652_a_Centralized online registration system\">Centralized online registration system<\/label><\/div>\n<div class=\"form-check\" data-correct=\"true\"><input name=\"p_18652\" type=\"radio\" \/><label class=\"form-check__label\" for=\"p_18652_a_Cross-Origin Resource Sharing.\">Cross-Origin Resource Sharing.<\/label><\/div>\n<div class=\"form-check\" data-correct=\"false\"><input name=\"p_18652\" type=\"radio\" \/><label class=\"form-check__label\" for=\"p_18652_a_Centralized online resource sharing\">Centralized online resource sharing<\/label><\/div>\n<div class=\"form-check\" data-correct=\"false\"><input name=\"p_18652\" type=\"radio\" \/><label class=\"form-check__label\" for=\"p_18652_a_None of the above\">None of the above<\/label><\/div>\n<\/div>\n<\/section>\n<section class=\"ibpage-problems__item\">\n<div class=\"ibpage-problems__header\">\n<p><strong><span class=\"m-r-5\">3. <\/span>In what ways can developers reduce the loading time of their web applications?<\/strong><\/p>\n<\/div>\n<div class=\"ibpage-problems__options\">\n<div class=\"form-check\" data-correct=\"false\"><input name=\"p_18653\" type=\"radio\" \/><label class=\"form-check__label\" for=\"p_18653_a_Reduce the number of redirects.\">Reduce the number of redirects.<\/label><\/div>\n<div class=\"form-check\" data-correct=\"false\"><input name=\"p_18653\" type=\"radio\" \/><label class=\"form-check__label\" for=\"p_18653_a_Image compression and optimization.\">Image compression and optimization.<\/label><\/div>\n<div class=\"form-check\" data-correct=\"false\"><input name=\"p_18653\" type=\"radio\" \/><label class=\"form-check__label\" for=\"p_18653_a_Minify HTML, CSS, and JavaScript.\">Minify HTML, CSS, and JavaScript.<\/label><\/div>\n<div class=\"form-check\" data-correct=\"true\"><input name=\"p_18653\" type=\"radio\" \/><label class=\"form-check__label\" for=\"p_18653_a_All of the above \">All of the above<\/label><\/div>\n<\/div>\n<\/section>\n<section class=\"ibpage-problems__item\">\n<div class=\"ibpage-problems__header\">\n<p><strong><span class=\"m-r-5\">4. <\/span>What software deployment strategy creates two separate infrastructure environments?<\/strong><\/p>\n<\/div>\n<div class=\"ibpage-problems__options\">\n<div class=\"form-check\" data-correct=\"true\"><input name=\"p_18654\" type=\"radio\" \/><label class=\"form-check__label\" for=\"p_18654_a_Blue-Green deployment strategy\">Blue-Green deployment strategy<\/label><\/div>\n<div class=\"form-check\" data-correct=\"false\"><input name=\"p_18654\" type=\"radio\" \/><label class=\"form-check__label\" for=\"p_18654_a_Rolling deployment strategy\">Rolling deployment strategy<\/label><\/div>\n<div class=\"form-check\" data-correct=\"false\"><input name=\"p_18654\" type=\"radio\" \/><label class=\"form-check__label\" for=\"p_18654_a_Recreate deployment strategy\">Recreate deployment strategy<\/label><\/div>\n<div class=\"form-check\" data-correct=\"false\"><input name=\"p_18654\" type=\"radio\" \/><label class=\"form-check__label\" for=\"p_18654_a_Canary deployment strategy\">Canary deployment strategy<\/label><\/div>\n<\/div>\n<\/section>\n<section class=\"ibpage-problems__item\">\n<div class=\"ibpage-problems__header\">\n<p><strong><span class=\"m-r-5\">5. <\/span>What type of class does Dependency Injection not involve?<\/strong><\/p>\n<\/div>\n<div class=\"ibpage-problems__options\">\n<div class=\"form-check\" data-correct=\"false\"><input name=\"p_18655\" type=\"radio\" \/><label class=\"form-check__label\" for=\"p_18655_a_Client\">Client<\/label><\/div>\n<div class=\"form-check\" data-correct=\"false\"><input name=\"p_18655\" type=\"radio\" \/><label class=\"form-check__label\" for=\"p_18655_a_Injector\">Injector<\/label><\/div>\n<div class=\"form-check\" data-correct=\"true\"><input name=\"p_18655\" type=\"radio\" \/><label class=\"form-check__label\" for=\"p_18655_a_Concrete\">Concrete<\/label><\/div>\n<div class=\"form-check\" data-correct=\"false\"><input name=\"p_18655\" type=\"radio\" \/><label class=\"form-check__label\" for=\"p_18655_a_Service\">Service<\/label><\/div>\n<\/div>\n<\/section>\n<section class=\"ibpage-problems__item\">\n<div class=\"ibpage-problems__header\">\n<p><strong><span class=\"m-r-5\">6. <\/span>The use of callback functions leaves you with code that is difficult to read and maintain. True or False.<\/strong><\/p>\n<\/div>\n<div class=\"ibpage-problems__options\">\n<div class=\"form-check\" data-correct=\"true\"><input name=\"p_18656\" type=\"radio\" \/><label class=\"form-check__label\" for=\"p_18656_a_True\">True<\/label><\/div>\n<div class=\"form-check\" data-correct=\"false\"><input name=\"p_18656\" type=\"radio\" \/><label class=\"form-check__label\" for=\"p_18656_a_False\">False<\/label><\/div>\n<\/div>\n<\/section>\n<section class=\"ibpage-problems__item\">\n<div class=\"ibpage-problems__header\">\n<p><strong><span class=\"m-r-5\">7. <\/span>______ can be used as an alternative to callback functions in JavaScript.<\/strong><\/p>\n<\/div>\n<div class=\"ibpage-problems__options\">\n<div class=\"form-check\" data-correct=\"false\"><input name=\"p_18657\" type=\"radio\" \/><label class=\"form-check__label\" for=\"p_18657_a_Callback Hell\">Callback Hell<\/label><\/div>\n<div class=\"form-check\" data-correct=\"true\"><input name=\"p_18657\" type=\"radio\" \/><label class=\"form-check__label\" for=\"p_18657_a_Promise\">Promise<\/label><\/div>\n<div class=\"form-check\" data-correct=\"false\"><input name=\"p_18657\" type=\"radio\" \/><label class=\"form-check__label\" for=\"p_18657_a_Event Loop\">Event Loop<\/label><\/div>\n<div class=\"form-check\" data-correct=\"false\"><input name=\"p_18657\" type=\"radio\" \/><label class=\"form-check__label\" for=\"p_18657_a_None of the above\">None of the above<\/label><\/div>\n<\/div>\n<\/section>\n<section class=\"ibpage-problems__item\">\n<div class=\"ibpage-problems__header\">\n<p><strong><span class=\"m-r-5\">8. <\/span>Which JavaScript-based technologies are part of MEAN for developing web applications?<\/strong><\/p>\n<\/div>\n<div class=\"ibpage-problems__options\">\n<div class=\"form-check\" data-correct=\"false\"><input name=\"p_18658\" type=\"radio\" \/><label class=\"form-check__label\" for=\"p_18658_a_Linux, Apache, MySQL, PHP\">Linux, Apache, MySQL, PHP<\/label><\/div>\n<div class=\"form-check\" data-correct=\"false\"><input name=\"p_18658\" type=\"radio\" \/><label class=\"form-check__label\" for=\"p_18658_a_Linux, Nginx, MySQL, PHP\">Linux, Nginx, MySQL, PHP<\/label><\/div>\n<div class=\"form-check\" data-correct=\"true\"><input name=\"p_18658\" type=\"radio\" \/><label class=\"form-check__label\" for=\"p_18658_a_MongoDB, ExpressJS, AngularJS, Node.js\">MongoDB, ExpressJS, AngularJS, Node.js<\/label><\/div>\n<div class=\"form-check\" data-correct=\"false\"><input name=\"p_18658\" type=\"radio\" \/><label class=\"form-check__label\" for=\"p_18658_a_MongoDB, ExpressJS, ReactJS, NodeJS\">MongoDB, ExpressJS, ReactJS, NodeJS<\/label><\/div>\n<\/div>\n<\/section>\n<section class=\"ibpage-problems__item\">\n<div class=\"ibpage-problems__header\">\n<p><strong><span class=\"m-r-5\">9. <\/span>Which of the following are limitations of the arrow function in ES6?<\/strong><\/p>\n<\/div>\n<div class=\"ibpage-problems__options\">\n<div class=\"form-check\" data-correct=\"false\"><input name=\"p_18659\" type=\"radio\" \/><label class=\"form-check__label\" for=\"p_18659_a_Has no bindings to 'this' or 'super', so it shouldn't be used as a method.\">Has no bindings to &#8216;this&#8217; or &#8216;super&#8217;, so it shouldn&#8217;t be used as a method.<\/label><\/div>\n<div class=\"form-check\" data-correct=\"false\"><input name=\"p_18659\" type=\"radio\" \/><label class=\"form-check__label\" for=\"p_18659_a_Has no new.target keyword.\">Has no new.target keyword.<\/label><\/div>\n<div class=\"form-check\" data-correct=\"false\"><input name=\"p_18659\" type=\"radio\" \/><label class=\"form-check__label\" for=\"p_18659_a_Not suitable for use as constructors.\">Not suitable for use as constructors.<\/label><\/div>\n<div class=\"form-check\" data-correct=\"true\"><input name=\"p_18659\" type=\"radio\" \/><label class=\"form-check__label\" for=\"p_18659_a_All of the above\">All of the above<\/label><\/div>\n<\/div>\n<\/section>\n<section class=\"ibpage-problems__item\">\n<div class=\"ibpage-problems__header\">\n<p><strong><span class=\"m-r-5\">10. <\/span>Which of the following involves removing redundant data from a database?<\/strong><\/p>\n<\/div>\n<div class=\"ibpage-problems__options\">\n<div class=\"form-check\" data-correct=\"true\"><input name=\"p_18660\" type=\"radio\" \/><label class=\"form-check__label\" for=\"p_18660_a_Normalization\">Normalization<\/label><\/div>\n<div class=\"form-check\" data-correct=\"false\"><input name=\"p_18660\" type=\"radio\" \/><label class=\"form-check__label\" for=\"p_18660_a_Denormalization\">Denormalization<\/label><\/div>\n<div class=\"form-check\" data-correct=\"false\"><input name=\"p_18660\" type=\"radio\" \/><label class=\"form-check__label\" for=\"p_18660_a_Both A and B\">Both A and B<\/label><\/div>\n<div class=\"form-check\" data-correct=\"false\"><input name=\"p_18660\" type=\"radio\" \/><label class=\"form-check__label\" for=\"p_18660_a_None of the above\">None of the above<\/label><\/div>\n<\/div>\n<div class=\"ibpage-problems__options\">\n<div data-correct=\"false\">\n<h2 style=\"text-align: center;\"><span class=\"ez-toc-section\" id=\"full_stack_development_course_online_with_100_placement_assistance\"><\/span><a class=\"btn btn-default\" href=\"https:\/\/entri.app\/course\/full-stack-developer-course\/\">full stack development course online with 100% placement assistance!<\/a><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h2><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span><strong>Conclusion<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>A potential employer doesn&#8217;t expect applicants to know everything, whether they&#8217;re freshers or experienced. However, a well-prepared and enthusiastic candidate will undoubtedly stand out. In a full stack developer interview, candidates should be able to demonstrate excellent organizational skills and precision in their work. Also, honesty and transparency pay dividends over the long run.<\/p>\n<p>In this article, we have covered the top 30+ Full-Stack developer interview questions &amp; answers for freshers and experienced candidates so you can succeed in your next full-stack developer interview. Questions like those listed above are quick, insightful, and provide key suggestions that are vital to the interview process. If you review frequently asked full stack developer interview questions and answers, you increase your chances of getting hired. Make sure you review all the questions and answers.<\/p>\n<\/div>\n<\/div>\n<\/section>\n<\/section>\n<table>\n<tbody>\n<tr>\n<td style=\"text-align: center;\" colspan=\"3\"><strong>Our Other Courses<\/strong><\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/entri.app\/course\/mep-course\/\"><strong>MEP Course<\/strong><\/a><\/td>\n<td><a href=\"https:\/\/entri.app\/course\/quantity-surveying-course\/\"><strong>Quantity Surveying Course<\/strong><\/a><\/td>\n<td><a href=\"https:\/\/entri.app\/course\/montessori-teachers-training-course\/\"><strong>Montessori Teachers Training Course<\/strong><\/a><\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/entri.app\/course\/performance-marketing-course\/\"><strong>Performance Marketing Course\u00a0<\/strong><\/a><\/td>\n<td><a href=\"https:\/\/entri.app\/course\/practical-accounting-course\/\"><strong>Practical Accounting Course<\/strong><\/a><\/td>\n<td><a href=\"https:\/\/entri.app\/course\/yoga-teachers-training-course\/\"><strong>Yoga Teachers Training Course<\/strong><\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p>What is it like to go into the interview process for a Full-Stack Developer role? It is quite common to feel anxious at first, especially if this is your first time on the hot seat. One of the most popular and hottest professions in the tech industry is a Full Stack Development role. Full-stack developers [&hellip;]<\/p>\n","protected":false},"author":111,"featured_media":25583951,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[802,1903,1841,1926,1881],"tags":[],"class_list":["post-25536671","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-articles","category-coding","category-entri-skilling","category-full-stack-web-development","category-web-android-development"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Top Full Stack Developer Interview Questions (2024) - Entri Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/entri.app\/blog\/top-full-stack-developer-interview-questions\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Top Full Stack Developer Interview Questions (2024) - Entri Blog\" \/>\n<meta property=\"og:description\" content=\"What is it like to go into the interview process for a Full-Stack Developer role? It is quite common to feel anxious at first, especially if this is your first time on the hot seat. One of the most popular and hottest professions in the tech industry is a Full Stack Development role. Full-stack developers [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/entri.app\/blog\/top-full-stack-developer-interview-questions\/\" \/>\n<meta property=\"og:site_name\" content=\"Entri Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/entri.me\/\" \/>\n<meta property=\"article:published_time\" content=\"2022-08-07T08:27:34+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-05-21T11:53:12+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/entri.app\/blog\/wp-content\/uploads\/2022\/08\/full-stack-developer-interview-questions-and-answers.png\" \/>\n\t<meta property=\"og:image:width\" content=\"820\" \/>\n\t<meta property=\"og:image:height\" content=\"615\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Feeba Mahin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@entri_app\" \/>\n<meta name=\"twitter:site\" content=\"@entri_app\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Feeba Mahin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"23 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/entri.app\/blog\/top-full-stack-developer-interview-questions\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/entri.app\/blog\/top-full-stack-developer-interview-questions\/\"},\"author\":{\"name\":\"Feeba Mahin\",\"@id\":\"https:\/\/entri.app\/blog\/#\/schema\/person\/f036dab84abae3dcc9390a1110d95d36\"},\"headline\":\"Top Full Stack Developer Interview Questions (2024)\",\"datePublished\":\"2022-08-07T08:27:34+00:00\",\"dateModified\":\"2024-05-21T11:53:12+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/entri.app\/blog\/top-full-stack-developer-interview-questions\/\"},\"wordCount\":4644,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/entri.app\/blog\/#organization\"},\"image\":{\"@id\":\"https:\/\/entri.app\/blog\/top-full-stack-developer-interview-questions\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/entri.app\/blog\/wp-content\/uploads\/2022\/08\/full-stack-developer-interview-questions-and-answers.png\",\"articleSection\":[\"Articles\",\"Coding\",\"Entri Skilling\",\"Full Stack Web Development\",\"Web and Android Development\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/entri.app\/blog\/top-full-stack-developer-interview-questions\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/entri.app\/blog\/top-full-stack-developer-interview-questions\/\",\"url\":\"https:\/\/entri.app\/blog\/top-full-stack-developer-interview-questions\/\",\"name\":\"Top Full Stack Developer Interview Questions (2024) - 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