{"id":10714,"date":"2024-07-27T12:00:43","date_gmt":"2024-07-27T12:00:43","guid":{"rendered":"https:\/\/www.w3webschool.com\/blog\/?p=10714"},"modified":"2024-07-27T12:01:32","modified_gmt":"2024-07-27T12:01:32","slug":"full-stack-developer-interview-questions","status":"publish","type":"post","link":"https:\/\/www.w3webschool.com\/blog\/full-stack-developer-interview-questions\/","title":{"rendered":"Top 40+ Full-stack Developer Interview Questions &amp; Answers [2024]"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"10714\" class=\"elementor elementor-10714\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-7a0e8b8 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7a0e8b8\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-8b001a8\" data-id=\"8b001a8\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-51c3562 elementor-widget elementor-widget-heading\" data-id=\"51c3562\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Top 40+ Full-stack Developer Interview Questions &amp; Answers [2024]<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e5adbbd elementor-widget elementor-widget-image\" data-id=\"e5adbbd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1920\" height=\"1080\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/www.w3webschool.com\/blog\/wp-content\/uploads\/2024\/07\/Full-stack-developer-Interview-Questions.jpg\" class=\"attachment-full size-full wp-image-10726 lazyload\" alt=\"Full-stack developer Interview Questions\" data-srcset=\"https:\/\/www.w3webschool.com\/blog\/wp-content\/uploads\/2024\/07\/Full-stack-developer-Interview-Questions.jpg 1920w, https:\/\/www.w3webschool.com\/blog\/wp-content\/uploads\/2024\/07\/Full-stack-developer-Interview-Questions-300x169.jpg 300w, https:\/\/www.w3webschool.com\/blog\/wp-content\/uploads\/2024\/07\/Full-stack-developer-Interview-Questions-1100x619.jpg 1100w, https:\/\/www.w3webschool.com\/blog\/wp-content\/uploads\/2024\/07\/Full-stack-developer-Interview-Questions-768x432.jpg 768w, https:\/\/www.w3webschool.com\/blog\/wp-content\/uploads\/2024\/07\/Full-stack-developer-Interview-Questions-1536x864.jpg 1536w, https:\/\/www.w3webschool.com\/blog\/wp-content\/uploads\/2024\/07\/Full-stack-developer-Interview-Questions-150x84.jpg 150w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" title=\"\"><noscript><img decoding=\"async\" width=\"1920\" height=\"1080\" src=\"https:\/\/www.w3webschool.com\/blog\/wp-content\/uploads\/2024\/07\/Full-stack-developer-Interview-Questions.jpg\" class=\"attachment-full size-full wp-image-10726 lazyload\" alt=\"Full-stack developer Interview Questions\" srcset=\"https:\/\/www.w3webschool.com\/blog\/wp-content\/uploads\/2024\/07\/Full-stack-developer-Interview-Questions.jpg 1920w, https:\/\/www.w3webschool.com\/blog\/wp-content\/uploads\/2024\/07\/Full-stack-developer-Interview-Questions-300x169.jpg 300w, https:\/\/www.w3webschool.com\/blog\/wp-content\/uploads\/2024\/07\/Full-stack-developer-Interview-Questions-1100x619.jpg 1100w, https:\/\/www.w3webschool.com\/blog\/wp-content\/uploads\/2024\/07\/Full-stack-developer-Interview-Questions-768x432.jpg 768w, https:\/\/www.w3webschool.com\/blog\/wp-content\/uploads\/2024\/07\/Full-stack-developer-Interview-Questions-1536x864.jpg 1536w, https:\/\/www.w3webschool.com\/blog\/wp-content\/uploads\/2024\/07\/Full-stack-developer-Interview-Questions-150x84.jpg 150w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" title=\"\"><\/noscript>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-67f0919 elementor-widget elementor-widget-text-editor\" data-id=\"67f0919\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400\">Preparing for a successful interview? Curious about what will be asked? Do not panic! The pressure to crack a Full-stack developer interview can be a bit challenging.\u00a0<\/span><\/p><p><span style=\"font-weight: 400\">You might become tensed about missing out on the chance to hit your dream job because of tricky interview questions. But I have got you covered.\u00a0<\/span><\/p><p><span style=\"font-weight: 400\">Explore this blog post that I have prepared on the topic \u201c<strong>Top 40+ Full-stack Developer Interview Questions<\/strong> &amp; answers for 2024\u201d. I have compiled some common interview questions &amp; offered clear &amp; crisp answers.\u00a0<\/span><\/p><p><span style=\"font-weight: 400\">This blog post will help you to improve your knowledge &amp; skills. Make yourself prepared for the Full-stack developer interviews &amp; how to impress them. <\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-563e25f elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"563e25f\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-7fbbe7d\" data-id=\"7fbbe7d\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5fab865 elementor-widget elementor-widget-text-editor\" data-id=\"5fab865\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400\">All set to crack Full-stack developer interviews? <\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f2f2e5a elementor-widget elementor-widget-text-editor\" data-id=\"f2f2e5a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400\">Join W3 Web School\u2019s <strong>Full-stack web development course<\/strong> &amp; master the skills in just nine months!<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2bcaacd elementor-align-center elementor-widget elementor-widget-button\" data-id=\"2bcaacd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/www.w3webschool.com\/full-stack-web-development-course-in-kolkata\/\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Explore Course Now!<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-e71d2fa elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"e71d2fa\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-871b507\" data-id=\"871b507\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-f2d0846 elementor-toc--minimized-on-tablet elementor-widget elementor-widget-table-of-contents\" data-id=\"f2d0846\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;headings_by_tags&quot;:[&quot;h2&quot;],&quot;exclude_headings_by_selector&quot;:[],&quot;marker_view&quot;:&quot;numbers&quot;,&quot;minimize_box&quot;:&quot;yes&quot;,&quot;minimized_on&quot;:&quot;tablet&quot;,&quot;hierarchical_view&quot;:&quot;yes&quot;,&quot;min_height&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]}}\" data-widget_type=\"table-of-contents.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-toc__header\">\n\t\t\t<h4 class=\"elementor-toc__header-title\">\n\t\t\t\tTable of Contents\t\t\t<\/h4>\n\t\t\t\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--expand\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__f2d0846\" aria-expanded=\"true\" aria-label=\"Open table of contents\"><i aria-hidden=\"true\" class=\"fas fa-chevron-down\"><\/i><\/div>\n\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--collapse\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__f2d0846\" aria-expanded=\"true\" aria-label=\"Close table of contents\"><i aria-hidden=\"true\" class=\"fas fa-chevron-up\"><\/i><\/div>\n\t\t\t\t\t<\/div>\n\t\t<div id=\"elementor-toc__f2d0846\" class=\"elementor-toc__body\">\n\t\t\t<div class=\"elementor-toc__spinner-container\">\n\t\t\t\t<i class=\"elementor-toc__spinner eicon-animation-spin eicon-loading\" aria-hidden=\"true\"><\/i>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-95461bc elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"95461bc\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-3e57a6b\" data-id=\"3e57a6b\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4745bc4 elementor-widget elementor-widget-heading\" data-id=\"4745bc4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">40+ Most Frequently Asked Full-stack Developer Interview Questions <\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c380287 elementor-widget elementor-widget-text-editor\" data-id=\"c380287\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400\">I have listed <strong>40+ Full-stack developer interview questions<\/strong> &amp; answers that will help you get ready for this highly competitive job role. These interview questions have been carefully selected depending on what you will likely be asked in the interview.\u00a0<\/span><\/p><p><span style=\"font-weight: 400\">Reading this article can enhance your opportunities to crack your upcoming interview. This blog post is clear, concise, updated &amp; easy to understand.<\/span><\/p><p><span style=\"font-weight: 400\">Start now!<\/span><\/p><p><b>Q1. What are data attributes?<\/b><\/p><p><span style=\"font-weight: 400\">Data attributes refer to the unique attributes of HTML that enable you to gather additional data on an element without influencing the styling or layout of the website. Data attributes are prefixed with data &amp; are easily accessible with JavaScript.\u00a0<\/span><\/p><p><span style=\"font-weight: 400\">This is available in table format &amp; refers to special attributes for elements in a programming language. These can gather user IDs, which can be manipulated with the help of JavaScript.\u00a0<\/span><\/p><p><b>Q2. What programming languages are highly preferred by full-stack developers?<\/b><\/p><p><span style=\"font-weight: 400\">Full-stack developers are highly interested in programming languages that enable them to work on both the back-end &amp; front-end web applications. The highly preferred programming languages are JavaScript, HTML, CSS, PHP, Python, Java &amp; Ruby.\u00a0<\/span><\/p><p><span style=\"font-weight: 400\">Also, some major back-end programming languages are C#, C++, Node.Js &amp; more!<\/span><\/p><p><b>Q3. Can you name some popular full-stack developer tools?<\/b><\/p><p><span style=\"font-weight: 400\">A range of popular tools are used in full-stack development &amp; they include:<\/span><\/p><ul><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Webpack<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Git<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Python<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Bootstrap<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">AngularJS<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">SQL<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">MongoDB<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Visual Studio Code<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">GitHub<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Ruby on Rails<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Laravel<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">JavaScript<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Nodejs<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Slack<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">jQuery<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Backbone.js<\/span><\/li><\/ul><p><b>Q4. Can you highlight some of the latest trends in full-stack development?<\/b><\/p><p><span style=\"font-weight: 400\">As per the industry professionals, candidates who are highly interested in cracking the full-stack developer interview questions must be aware of these latest industry changes. These trends are as follows:<\/span><\/p><ul><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">There is a rise in AI or artificial intelligence-based web solutions to automate processes &amp; systems for higher performance.\u00a0<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">No-code or Low-code development.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Progressive web applications.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">AR (Augmented Reality) &amp; VR (Virtual Reality) incorporation.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Machine learning.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Blockchain technology.<\/span><\/li><\/ul><p><b>Q5. What do you mean by an application server?<\/b><\/p><p><span style=\"font-weight: 400\">An application server refers to the machine or tool that is responsible for hosting software applications. This specific tool manages business logic to create robust content by using different databases as well as various resources.\u00a0<\/span><\/p><p><span style=\"font-weight: 400\">It also offers a runtime environment to run application codes. Application server supports different types of APIs &amp; Protocols. It also manages the communication between application logic, user interface &amp; data storage layers of a web application.\u00a0<\/span><\/p><p><b>Q6. Explain the concept of multithreading &amp; state its advantages.<\/b><\/p><p><span style=\"font-weight: 400\">Multithreading refers to the specific practice of dividing a process into multiple threads so that each thread can run independently using the same resources of the system.\u00a0<\/span><\/p><p><span style=\"font-weight: 400\">Some key advantages of multithreading are:<\/span><\/p><ul><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Increased response time of the application as no thread is blocking others&#8217; requests.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Multithreading helps to reduce computing resources &amp; apply them more efficiently.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">It uses less resources to run various processes simultaneously.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">It also boosts the overall user experience by breaking down into multiple threads and effectively works to save overall time without impacting the main flow of the application.<\/span><\/li><\/ul><p><b>Q7. What do you mean by pair programming?<\/b><\/p><p><span style=\"font-weight: 400\">Pair programming is the practice of two web developers working on the same code together. Here, one developer writes the codes known as the driver &amp; the other one, known as the navigator, reviews them for the smooth functioning of the website.\u00a0<\/span><\/p><p><span style=\"font-weight: 400\">The different perks you can get from pair programming cover the sharing of ideas, concepts, and knowledge for generating higher-quality code &amp; quick problem-solving.<\/span><\/p><p><b>Q8. What are the different types of design patterns?<\/b><\/p><p><span style=\"font-weight: 400\">Design patterns are known as those standardized solutions that are very popular in software design issues. They offer design templates that solve particular design issues in different ways.\u00a0<\/span><\/p><p><span style=\"font-weight: 400\">Some popular design pattern types are:<\/span><\/p><ul><li style=\"font-weight: 400\"><b>Behavioral patterns:<\/b><span style=\"font-weight: 400\"> These types of design patterns are focused on the interaction between different objects, such as command, observer &amp; strategy.\u00a0<\/span><\/li><li style=\"font-weight: 400\"><b>Creational patterns:<\/b><span style=\"font-weight: 400\"> These specific types of design patterns deal with the object development mechanism.<\/span><\/li><li style=\"font-weight: 400\"><b>Structural patterns:<\/b><span style=\"font-weight: 400\"> These types of design patterns rely heavily on object &amp; class composition.\u00a0<\/span><\/li><\/ul><p><b>Q9. Can you explain some ways to reduce the load time of a web application?<\/b><\/p><p><span style=\"font-weight: 400\">There are some major ways to reduce the total load time of a web application, and those are;<\/span><\/p><ul><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Image compression.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Using a content delivery network (CDN).<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Allowing browser caching.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Lazy loading implementation for videos &amp; images.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Minifying the JavaScript &amp; CSS.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Reducing the time of server response.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">A preferable hosting solution selection for performance optimization.<\/span><\/li><\/ul><p><b>Q10. What is long polling?<\/b><\/p><p><span style=\"font-weight: 400\">Long polling refers to the specific web application development practice applied to push data from servers to clients as soon as they make a request for any data. Long polling helps developers boost the amount of information that is pushed from the server to clients.\u00a0<\/span><\/p><p><span style=\"font-weight: 400\">Long polling helps to keep requests &amp; wait for more vital data to become highly available. Apart from this, long polling also helps to decrease the usage of bandwidth &amp; latency as compared to regular polling and offers a better responsive experience.\u00a0<\/span><\/p><p><b>Q11. Why is Python a popular language choice for full-stack web developers?<\/b><\/p><p><span style=\"font-weight: 400\">Python is a popular programming language that is used widely by full-stack web developers for its multipurpose frameworks, fast processing, testing &amp; complete development process management.\u00a0<\/span><\/p><p><span style=\"font-weight: 400\">It has an extensive ecosystem of frameworks &amp; libraries that helps to simplify tasks such as database management, routing &amp; authentication. It also offers huge database connectivity so that you can easily connect with popular databases like MySQL, Oracle &amp; PostgreSQL.\u00a0<\/span><\/p><p><span style=\"font-weight: 400\">The multitasking capability of Python helps to simplify the debugging, deployment &amp; prototyping process.\u00a0<\/span><\/p><p><b>Q12. What is unit testing &amp; and what are its advantages?<\/b><\/p><p><span style=\"font-weight: 400\">Unit testing refers to the web development procedure in which the very little testable section of an application, known as units, is separately evaluated for proper web operation.<\/span><\/p><p><span style=\"font-weight: 400\">The key advantages of unit testing are:<\/span><\/p><ul><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">It helps web developers to write well-structured code, increasing the code quality.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">It helps simplify the debugging process by offering examples of code behavior.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Unit testing also helps in the early detection of bugs, finding out the issues in the previous stage &amp; decreasing the overall fixing costs.\u00a0<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">It also helps in regression testing.<\/span><\/li><\/ul><p><b>Q13. What do you mean by Box Model in CSS? State some major elements of the CSS Box Model.<\/b><\/p><p><span style=\"font-weight: 400\">The CSS Box Model refers to the box that includes each &amp; every HTML element. It is the space that is occupied by an HTML element covering four essential elements.\u00a0<\/span><\/p><p><span style=\"font-weight: 400\">The four major elements of the CSS Box Model are content, margin, padding &amp; border. They help in defining the web page layout.\u00a0<\/span><\/p><p><span style=\"font-weight: 400\">The \u201cContent\u201d refers to the original content of the box, whereas the \u201cBorder\u201d refers to the edge around the padding, and the \u201cMargin\u201d is the specific space outside the border that separates the box from the other elements of a web application. The \u201cPadding\u201d is the Specific space between the border &amp; the original web content.\u00a0<\/span><\/p><p><b>Q14. How is Hashtable different from HashMap?<\/b><\/p><p><span style=\"font-weight: 400\">Hashtable is synchronized and thread-safe, whereas HashMap is not synchronized and thread-safe. Hashtable does not support null keys or values, whereas HashMap supports null values or null keys.\u00a0<\/span><\/p><p><span style=\"font-weight: 400\">HashMap is a part of the frameworks of Java collection, whereas Hashtable is a part of the early Java framework. Hashtable is slower than HashMap because of synchronization, while Hashmaps are faster in single-threaded web applications.\u00a0<\/span><\/p><p><b>Q15. Explain the concept of double brace initialization &amp; its advantages.<\/b><\/p><p><span style=\"font-weight: 400\">Double brace initialization refers to the method or process in Java that initializes an anonymous inner class into it. The first brace develops an anonymous inner class, while the second brace performs as an instance initializer.\u00a0<\/span><\/p><p><span style=\"font-weight: 400\">Some key advantages of double brace initialization are;\u00a0<\/span><\/p><ul><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Develops inline initialization to make codes highly readable.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Offers the best possible way to add initialization blocks to set up the collection or object state.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">It also enables the easy &amp; quick initialization of collection for making a concise syntax.\u00a0<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Develops an anonymous inner class, which is very vital for making examples of abstract interfaces or classes.\u00a0<\/span><\/li><\/ul><p><b>Q16. What do you mean by jQuery and state its features?<\/b><\/p><p><span style=\"font-weight: 400\">jQuery refers to the fast &amp; lightweight JavaScript library that allows a user to apply JavaScript easily to their website. jQuery was developed based on the philosophy of \u201cWrite less, do more.\u201d<\/span><\/p><p><span style=\"font-weight: 400\">It enables a developer to reduce the process of coding and save a lot of time.\u00a0<\/span><\/p><p><span style=\"font-weight: 400\">The significant features of jQuery are:<\/span><\/p><ul><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">HTML event methods.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">HTML\/DOM manipulation.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">CSS manipulation.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Animations &amp; effects.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Extensive library of Plugins.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Cross-browser compatibility helps work with various types of web browsers.\u00a0<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">AJAX assistance.<\/span><\/li><\/ul><p><b>Q17. State the difference between MVP (Model View Presenter) &amp; MVC (Model View Controller).<\/b><\/p><p><span style=\"font-weight: 400\">MVP &amp; MVC are two major Android architecture patterns of a web application.<\/span><\/p><p><span style=\"font-weight: 400\">MVP or Model View Presenter refers to the architectural patterns that help compensate for some MVC issues. MVP is comprised of three major elements, and those are Model, view &amp; presenter.\u00a0<\/span><\/p><p><span style=\"font-weight: 400\">On the other hand, MVC or Model View Controller helps to break down the code into three elements. As early as the web developers create a class for a web application, they should categorize it into one of the major three layers, including controller, model &amp; view.\u00a0<\/span><\/p><p><span style=\"font-weight: 400\">In MVP, the unit testing process is supported, while in MVC, the unit testing process is limited. The major difference is that the controller has less power over the viewer; hence, it is difficult to unite the presentation logic using MVC.<\/span><\/p><p><b>Q18. Explain the concept of MEAN stack.<\/b><\/p><p><span style=\"font-weight: 400\">MEAN stack is the best tech stack among others due to its extensive applications covering cloud application development. MEAN stack is comprised of MongoDB, Epress.js, AngularJS &amp; Node.js, which help a developer build robust &amp; responsive web applications.<\/span><\/p><p><span style=\"font-weight: 400\">This end-to-end JavaScript stack is highly used for cloud applications.\u00a0<\/span><\/p><p><b>Q19. Can you explain the ways to optimize SQL queries?<\/b><\/p><p><span style=\"font-weight: 400\">Optimization of SQL queries refers to the identification of the most vital techniques or practices to boost the overall SQL query performance.<\/span><\/p><p><span style=\"font-weight: 400\">Below, I have mentioned some effective ways for SQL query optimization;<\/span><\/p><ul><li style=\"font-weight: 400\"><b>Using indexes<\/b><span style=\"font-weight: 400\">: Indexing columns are often used in JOIN conditions, WHERE clauses or ORDER BY elements can boost the execution of queries.\u00a0<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Avoid \u201cSELECT\u201d &amp; choose \u201cSELECT QUERY\u201d instead to avoid unnecessary columns &amp; reduce the speed of data loading.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Always use the most suitable \u201cJOIN\u201d types for your specific SQL queries for desired outcomes &amp; reduce the unnecessary loading time.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Appropriate usage of \u201cFETCH\u201d &amp; \u201cLIMIT\u201d can decrease unnecessary retrieval of vital information.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Try to use specific tools such as EXPLAIN to get an idea &amp; query execution optimization.\u00a0<\/span><\/li><\/ul><p><b>Q20. What do you mean by \u201cStrict Mode\u201d?\u00a0<\/b><\/p><p><span style=\"font-weight: 400\">\u201cStrict Mode\u201d refers to the function in JavaScrip that enables a developer to execute the programming code in a specific setting. It supports the code errors that are generally executed without any other errors.\u00a0<\/span><\/p><p><span style=\"font-weight: 400\">You can allow a strict mode by including the \u201cuse strict\u201d feature in the needed function or at the top of the file. \u201cStrict mode\u201d helps a developer to write secure codes. This mode can reduce some silent code errors by modifying them to throw errors. You can also limit some syntax that will be defined by future versions of ECMAScript.<\/span><\/p><p><b>Q21. How do you differentiate process &amp; thread?<\/b><\/p><p><span style=\"font-weight: 400\">Process refers to an independent program of execution, whereas a thread refers to a specific segment of a process. Threads are generally lighter &amp; need less amount of time for switching context, whereas processes are heavier as compared to threads &amp; demand huge time for switching context.\u00a0<\/span><\/p><p><span style=\"font-weight: 400\">Threads require fewer resources as compared to processes &amp; consume less amount of time to stop. Threads have various code segments, data segments &amp; files, while the process has its own independent data segments &amp; codes.<\/span><\/p><p><b>Q22. Explain the concept of data structure &amp; state the different types of data structure.<\/b><\/p><p><span style=\"font-weight: 400\">Data structure refers to the specific way of data organization &amp; storage in a unique format to recover the data effectively &amp; very quickly. There are two primary types of data structure, and they include:<\/span><\/p><ul><li style=\"font-weight: 400\"><b>Linear data structure:<\/b><span style=\"font-weight: 400\"> Array, Stack, Linked List, &amp; Queue are some major types of linear data structures.<\/span><\/li><li style=\"font-weight: 400\"><b>Non-linear data structure:<\/b><span style=\"font-weight: 400\"> Graphs &amp; Trees come under the category of Non-linear data structures.\u00a0<\/span><\/li><\/ul><p><span style=\"font-weight: 400\">Array refers to a set of elements identified by an index; Stacks refers to Last In, First Out structure; queues refers to First In, Last Out structure; graphs are collections of vertices linked by edges; and Linked lists are components that are connected using pointers.\u00a0<\/span><\/p><p><b>Q23. What is a semantic HTML tag &amp; why do you use it?<\/b><\/p><p><span style=\"font-weight: 400\">Semantic HTML refers to the markup in the HTML that defines the main purpose of a webpage rather than just presenting. For instance, features like footer, main, header, article, nav, p time &amp; more are applied to address the various contents &amp; sections of the web page.<\/span><\/p><p><span style=\"font-weight: 400\">The key reasons to use semantic HTML tags are;<\/span><\/p><ul><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Semantic HTML helps search engines to estimate the content &amp; significance of web pages.\u00a0<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">It also manages a website, as the different codes are very easy to understand.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">It is vital for SEO or search engine optimization.<\/span><\/li><\/ul><p><b>Q24. How is a web server different from a web application?<\/b><\/p><p><span style=\"font-weight: 400\">Web Server refers to the software that manages HTTP requests and serves web pages to give a better user experience. The common examples of web servers are Nginx &amp; Apache.<\/span><\/p><p><span style=\"font-weight: 400\">On the other hand, a web application refers to an application that is easily accessible through a web browser, generally hosted on a web server. It incorporates both the back end, which is server-side logic &amp; front end, which is the UI of the web application.<\/span><\/p><p><span style=\"font-weight: 400\">Web applications offer a runtime environment for enterprise applications, whereas web servers offer a runtime environment for web applications &amp; web servers.\u00a0<\/span><\/p><p><b>Q25. Can you explain some popular methods of session management servlet?<\/b><\/p><p><span style=\"font-weight: 400\">There are some key methods of session management servlet &amp; they are;<\/span><\/p><p><b>Hidden Form Fields:<\/b><span style=\"font-weight: 400\"> The incorporation of hidden fields in the forms helps manage the session state.\u00a0<\/span><\/p><p><b>Cookies<\/b><span style=\"font-weight: 400\">: Cookies are information that a servlet forwards to the client\u2019s browser. Cookies are saved by the browser &amp; are sent again to the server with a new request.<\/span><\/p><p><b>URL Rewriting<\/b><span style=\"font-weight: 400\">: A new session ID has been added to each URL, which is an aspect of this session management practice. The session ID is sent to the server by the browser to request a new web page. It allows the request to be linked to a specific session via the server.<\/span><\/p><p><b>HttpSession<\/b><span style=\"font-weight: 400\">: Session data is saved on the server side through a built-in Servlet interface.<\/span><\/p><p><b>Q26. What are Meta tags &amp; state their usage?<\/b><\/p><p><span style=\"font-weight: 400\">Meta tags refer to the piece of short information or tags that define the metadata on the HTML document. These tags always go into the inside part of the &lt;head&gt; element &amp; generally used to define page description, author of a document, character set, viewport settings &amp; keywords.\u00a0<\/span><\/p><p><span style=\"font-weight: 400\">The Meta tags are widely used in;<\/span><\/p><ul><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">SEO offers vital metadata for search engines.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Character set that specifies the the encoding of characters.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Viewpoint settings that control different layouts on mobile browsers.\u00a0<\/span><\/li><\/ul><p><b>Q27. Can you explain the difference between Div tag &amp; Span tag in HTML?<\/b><\/p><p><span style=\"font-weight: 400\">In HTML, Span Tags are generally utilized for paragraphs &amp; inline elements, whereas Div tags are used for block-level elements. Span tags showcase any particular word, whereas Div tags usually showcase a specific section on a web page.\u00a0<\/span><\/p><p><span style=\"font-weight: 400\">With a Span tag, a developer applies a specific color code to highlight the HTML content, whereas developers incorporate borders with different widths &amp; heights with specific color pixels to represent the HTML content.<\/span><\/p><p><b>Q28. What are CSS selectors?<\/b><\/p><p><span style=\"font-weight: 400\">CSS selectors are those specific patterns that are used to pick elements you want to style or design. These target HTML features rely on their class,\u00a0 types, attributes, IDs &amp;more.<\/span><\/p><p><span style=\"font-weight: 400\">Various popular CSS selectors are:<\/span><\/p><ul><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">CSS Universal Selector<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">CSS Group Selector<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">CSS Element Selector<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">CSS Attribute Selector<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">CSS Element Selector<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">CSS Child Selectors<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">CSS Pseudo Selectors<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">CSS ID Selector<\/span><\/li><\/ul><p><b>Q29. What is Flexbox &amp; and what are its features?<\/b><\/p><p><span style=\"font-weight: 400\">The Flexbox in CSS is commonly known as a flexible box in a layout module. This helps to make flexible &amp; responsive design layouts easily without adding any positioning &amp; float. This is a major tool for designing responsive &amp; flexible web layouts.\u00a0<\/span><\/p><p><span style=\"font-weight: 400\">The major features of Flexbox are:<\/span><\/p><ul><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Order<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Responsive Design<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Space Distribution<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Alignment<\/span><\/li><\/ul><p><b>Q30. What do you mean by callback function in JavaScript?<\/b><\/p><p><span style=\"font-weight: 400\">The callback function in JavaScript refers to the specific type of function that acts as a passing argument to another function. Despite the sequence through which these functions have been highlighted, they perform depending on functional calls.<\/span><\/p><p><span style=\"font-weight: 400\">Once the previous function has been completed, the next execution takes place. A developer can use a callback asynchronously or synchronously in JavaScript.\u00a0<\/span><\/p><p><b>Q31. What is Polyfill?<\/b><\/p><p><span style=\"font-weight: 400\">Polyfill refers to the piece of code that makes advanced HTML, CSS, or JavaScript elements in previous browsers that lack support. It is an effective way to change, edit, or add new features or functions.<\/span><\/p><p><span style=\"font-weight: 400\">In the majority of the cases, polyfill is generally written in JavaScript.\u00a0<\/span><\/p><p><span style=\"font-weight: 400\">Polyfills enable web developers to integrate an API irrespective of whether or not it is browser-supported. It allows developers to developers to use modern elements or functions in older browsers.<\/span><\/p><p><b>Q32. What is Hoisting &amp; state its features?<\/b><\/p><p><span style=\"font-weight: 400\">Hoisting refers to the default behavior of JavaScript, where it moves declarations of a variable, class, or function to the top of the latest scope before the execution of the code. It enables a developer to use the functions or variables before declaration.<\/span><\/p><p><span style=\"font-weight: 400\">Some common &amp; most popular features of Hoisting are:<\/span><\/p><ul><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Let &amp; Const declarations are not initialized but hoisted.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Functions &amp; variable declarations are hoisted.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Variables that are declared with \u201cvar\u201d have been initialized with \u201cundefined.\u201d<\/span><\/li><\/ul><p><b>Q33. What is Promise in JavaScript?<\/b><\/p><p><span style=\"font-weight: 400\">Promise in JavaScript refers to the representation of the eventual failure or completion of an asynchronous function &amp; its end value. It also enables asynchronous operations chaining by applying \u2018.catch()\u2019 &amp; \u2018.then()\u2019 processes, boosting the error management &amp; readability of codes.<\/span><\/p><p><span style=\"font-weight: 400\">When a unit of code does multiple asynchronous operations, promises in JavaScript may be a simpler &amp; efficient process for the user to figure out.<\/span><\/p><p><span style=\"font-weight: 400\">The promises in JavaScript come in three different states, and those are Fulfilled, Pending, &amp; Rejected.\u00a0<\/span><\/p><p><b>Q34. How do you differentiate between Git &amp; GitHub?<\/b><\/p><p><span style=\"font-weight: 400\">Git refers to the shared version control system for monitoring modifications in source code at the time of software development. GitHub refers to the web-based platform that uses Git&#8217;s version control system. It also offers hosting for collaboration tools &amp; software development, project management &amp; tracking of issues.\u00a0<\/span><\/p><p><span style=\"font-weight: 400\">GitHub is an online SaaS service, while Git is a single piece of software. The Desktop interface offered by Git is called Git Gui, while GitHub desktop is its desktop interface.\u00a0<\/span><\/p><p><b>Q35. What is MongoDB?<\/b><\/p><p><span style=\"font-weight: 400\">MongoDB refers to the non-rational database of web applications. It is the type of document database that collects JSON-like documents. The most flexible model of MongoDB saves data that are usually unstructured &amp; offers full indexing capabilities.\u00a0<\/span><\/p><p><span style=\"font-weight: 400\">It supports great functionality for big data sets, horizontal scaling via sharding &amp; data schema-less data models.<\/span><\/p><p><b>Q36. Explain the concept of Git Stash.<\/b><\/p><p><span style=\"font-weight: 400\">Git Stash refers to the Git Command that keeps track of your unintentional modifications, stores them for later usage &amp; then forwards them from your working copies.\u00a0<\/span><\/p><p><span style=\"font-weight: 400\">In order to stop a developer from making quick modifications while working on other development projects, Git Stash \u201cstashes\u201d\u2014temporarily\u2014modifications into your working directory. Apply git stash &amp; then reapply the stashed changes some point later.<\/span><\/p><p><b>Q37. What is Entity Bean?<\/b><\/p><p><span style=\"font-weight: 400\">Entity Bean refers to the specific type of Enterprise JavaBean that helps to represent the persistent piece of data managed in a database. It is a server-side Java EE component.\u00a0<\/span><\/p><p><span style=\"font-weight: 400\">Entity Base manages database interaction, transaction management &amp; lifecycle management.\u00a0<\/span><\/p><p><b>Q38. State the key features of MongoDB.<\/b><\/p><p><span style=\"font-weight: 400\">Some major features of MongoDB are;<\/span><\/p><ul><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">MongoDB offers Ad-hoc queries for real-time analysis &amp; web application optimization. This supports various types of queries like regular expression queries and field &amp; range queries.\u00a0<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">It also offers Indexing so that a web developer can incorporate secondary &amp; primary signals to index the area of a document saved in a MongoDB database.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">MongoDB also offers Schema flexibility, which helps collect the documents to make the structures different from each other.\u00a0<\/span><\/li><\/ul><p><b>Q39. How do you differentiate responsive designs from adaptive designs?<\/b><\/p><p><span style=\"font-weight: 400\">Responsive web design refers to the specific approach where a page rearranges automatically according to the mentioned screen size, whereas adaptive web design is the specific web design where browsers load a layout designed particularly for the preferred platform.<\/span><\/p><p><span style=\"font-weight: 400\">Responsive designs use media queries &amp; fluid grids, whereas adaptive designs use predefined layouts. Adaptive designs provide customized experiences for particular devices or screen sizes, whereas responsive designs are more flexible as compared to adaptive designs.<\/span><\/p><p><b>Q40. What is the difference between \u201cNormalizing\u201d &amp; \u201cResetting\u201d?<\/b><\/p><p><span style=\"font-weight: 400\">Normalizing is a modular method, whereas Resetting is a non-modular process. \u201cNormalizing\u201d refers to the different types of HTML style elements over browsers, while \u201cresetting\u201d refers to the collection of styles that is incorporated into the default HTML style elements.\u00a0<\/span><\/p><p><span style=\"font-weight: 400\">\u201cNormalizing\u201d is incapable of removing all the defaults, whereas \u201cResetting\u201d helps in removing all the default layouts &amp; stylings that are generally applied by browsers to page elements.\u00a0<\/span><\/p><p><span style=\"font-weight: 400\">\u201cNormalize\u201d supports debugging, whereas debugging is not that easy through \u201cresetting.\u201d\u00a0<\/span><\/p><p><b>Q41. What do you mean by tags, attributes &amp; elements in HTML?<\/b><\/p><p><span style=\"font-weight: 400\">The HTML tags refer to the markup code that represents the content &amp; structure of a webpage. An example of a tag for the paragraph is &lt;p&gt;.<\/span><\/p><p><span style=\"font-weight: 400\">An attribute is the element of a webpage that offers vital as well as additional data about an element. For example, \u2018class= \u201ctext-center\u201d&gt;\u2019.\u00a0<\/span><\/p><p><span style=\"font-weight: 400\">An element refers to the complete collection of content &amp; tags like &lt;p&gt; This is a paragraph. &lt;\/p&gt;.<\/span><\/p><p><span style=\"font-weight: 400\">In summary, HTML tags represent elements, attributes help in modifying them &amp; elements help to combine both the attributes &amp; tags with content.\u00a0<\/span><\/p><p><b>Q42. What are Directives in Angular JS? How many types of directives are there in angular Js?<\/b><\/p><p><span style=\"font-weight: 400\">Directives refer to the classes that include additional behavior to the elements of Angular web applications. With the help of directives, a developer can apply CSS styles, manipulate DOM, and manage user inputs.<\/span><\/p><p><span style=\"font-weight: 400\">The four key types of directives in Angular.js include attribute directives, custom directives, structural directives &amp; component directives.\u00a0<\/span><\/p><p><b>Q43. What do you mean by NPM or Node Package Manager?<\/b><\/p><p><span style=\"font-weight: 400\">NPM or Node Package Manager refers to a specific package managing tool for JavaScript. NPM is specially crafted to include modules as they are so that we can identify them whenever we search for nodes. Developers can reuse &amp; share codes via NPM.\u00a0<\/span><\/p><p><span style=\"font-weight: 400\">With this, a developer can install, update &amp; handle project dependencies. All Node Package Manager are referred to as package.json files.\u00a0<\/span><\/p><p><b>Q44. Can you name different datatypes available in PostgreSQL?<\/b><\/p><p><span style=\"font-weight: 400\">Different kinds of datatypes in PostgreSQL are:<\/span><\/p><ul><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Boolean<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Geometric primitives<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Character types<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">UUID<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">XML<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Numeric types<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Temporal types<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Arbitrary precision numeric<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Arrays<\/span><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-637da94 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"637da94\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-69e90de\" data-id=\"69e90de\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-9f345fc elementor-widget elementor-widget-heading\" data-id=\"9f345fc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Wrapping Up,<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-29d647b elementor-widget elementor-widget-text-editor\" data-id=\"29d647b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400\">The above-discussed interview questions are clear &amp; concise and are a major part of the interview procedure.\u00a0<\/span><\/p><p><span style=\"font-weight: 400\">Gearing up for <strong>full-stack developer interview questions<\/strong> will make you a fully prepared candidate to successfully land your dream job role. Besides, joining a <a href=\"https:\/\/www.w3webschool.com\/full-stack-web-development-course-in-kolkata\/\" data-wplink-edit=\"true\"><strong>Full-stack development course<\/strong><\/a> at W3 Web School can help you level up your confidence during the interview process.\u00a0<\/span><\/p><p><span style=\"font-weight: 400\">The more in-depth insights you have on the topic, the better you can perform in your interviews. Luckily, this course offers an in-depth grasp of the full-stack web development topic to beginner &amp; expert full-stack developers.\u00a0<\/span><\/p><p><strong>Other Interview Questions:<\/strong><\/p><ul><li style=\"font-weight: 400\"><a href=\"https:\/\/www.w3webschool.com\/blog\/front-end-developer-interview-questions\/\"><span style=\"font-weight: 400\">Top 30+ Most Asked Front-end Developer Interview Questions For 2024<\/span><\/a><\/li><li style=\"font-weight: 400\"><a href=\"https:\/\/www.w3webschool.com\/blog\/wordpress-interview-questions\/\"><span style=\"font-weight: 400\">15+ Essential WordPress Interview Questions &amp; Answers For 2024<\/span><\/a><\/li><li style=\"font-weight: 400\"><a href=\"https:\/\/www.w3webschool.com\/blog\/ui-ux-designer-interview-questions\/\"><span style=\"font-weight: 400\">Top 15+ UI\/UX Designer Interview Questions For Freshers [2024]<\/span><\/a><\/li><li style=\"font-weight: 400\"><a href=\"https:\/\/www.w3webschool.com\/blog\/graphic-design-interview-questions\/\"><span style=\"font-weight: 400\">Top 30+ Graphic Design Interview Questions For 2024 [With Answers]<\/span><\/a><\/li><li style=\"font-weight: 400\"><a href=\"https:\/\/www.w3webschool.com\/blog\/web-developer-interview-questions\/\"><span style=\"font-weight: 400\">Trending 25+ Web Developer Interview Questions &amp; Answers for 2024<\/span><\/a><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Top 40+ Full-stack Developer Interview Questions &amp; Answers [2024] Preparing for a successful interview? Curious about what will be asked? Do not panic! The pressure to crack a Full-stack developer interview can be a bit challenging. You might become tensed about missing out on the chance to hit your dream job because of tricky interview &#8230; <a title=\"Top 40+ Full-stack Developer Interview Questions &amp; Answers [2024]\" class=\"read-more\" href=\"https:\/\/www.w3webschool.com\/blog\/full-stack-developer-interview-questions\/\" aria-label=\"Read more about Top 40+ Full-stack Developer Interview Questions &amp; Answers [2024]\">Read more<\/a><\/p>\n","protected":false},"author":11,"featured_media":10771,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-10714","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-seo"],"_links":{"self":[{"href":"https:\/\/www.w3webschool.com\/blog\/wp-json\/wp\/v2\/posts\/10714"}],"collection":[{"href":"https:\/\/www.w3webschool.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.w3webschool.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.w3webschool.com\/blog\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/www.w3webschool.com\/blog\/wp-json\/wp\/v2\/comments?post=10714"}],"version-history":[{"count":0,"href":"https:\/\/www.w3webschool.com\/blog\/wp-json\/wp\/v2\/posts\/10714\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.w3webschool.com\/blog\/wp-json\/wp\/v2\/media\/10771"}],"wp:attachment":[{"href":"https:\/\/www.w3webschool.com\/blog\/wp-json\/wp\/v2\/media?parent=10714"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.w3webschool.com\/blog\/wp-json\/wp\/v2\/categories?post=10714"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.w3webschool.com\/blog\/wp-json\/wp\/v2\/tags?post=10714"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}