5 Common Web Developer Interview Questions with Answers

• cryptojobs.com
• February 18, 2025
• All Posts, Interview Questions
• Web3
• 0 Comments

Web development interviews can be challenging, with questions ranging from technical concepts to problem-solving scenarios. Web3 employers want to assess not only the programming skills of the developers they hire but also to understand if your coding skills are up to par with the current market standards. Whether you are a junior developer appearing for your first interview or an experienced professional, knowing what to expect can make a lot of difference.

In this article, we will share five common web developer interview questions along with their answers to help you prepare for your upcoming interviews.

Let’s take a look!

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What Skills Should a Good Web Developer Have?

This is a basic question that reflects how you think about the profession. The interviewer is trying to assess what skills you think are essential for a web developer and whether you have them. Similarly, they are also trying to see if the candidate is aware of the latest skills in the market and how well you have adapted to them.

Here is how you can answer this question:

There are many skills that are essential for a web developer; some of the most important skills are:

• Proficiency in Hypertext Markup Language
• Experience in Cascading Style Sheets (CSS)
• Extensive knowledge of Ruby, Python, and PHP
• Familiarity with software such as DSL (Domain Specific Language and SQL
• In-depth knowledge of JavaScript and its libraries, such as JQuery
• Critical-thinking
• Problem-solving

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What are the Added Benefits of HTTP/2 Compared to HTTP 1.1?

In this question, the interviewer wants to assess how well you have kept up with the innovation in the web development field. Ensure you give a smart answer that showcases your knowledge of the latest developments.

Here is how you can answer it:

HTTP/2 is an upgraded and contemporary version of HTTP 1.1 internet protocol. The basic concept remains the same, but the former showcases lesser loading time and enhanced protocol overhead.

One of the most prominent benefits of HTTP 2 is that it can take multiple requests at a single time over the same connection. Since simultaneous requests can be sent across the same connection, the need to open new connections is eliminated.

Other benefits of HTTP 2 include advanced sever-push technology, a considerably lesser network footprint, and greater resource efficiency. HTTP 2 also minimizes security issues pertaining to HTTP 1.1, e.g., response splitting attacks.

How do You Explain Webpack?

Most interviewers will expect you to have a firm grasp of the concept of Webpack. Therefore, make sure that you answer intelligently and satisfy them to the maximum.

Consider answering this question this way:

Webpack is a modern tool that allows the bundling of JavaScript applications (for both CommonJS and ESM) and supports numerous assets, including fonts, images, and stylesheets.

It is highly useful for developers, as Webpack enables them to handle their CSS, JavaScript, and other web application assets efficiently. In the simplest terms, Webpack is used to bundle multiple files, making them concise and optimal. These bundles can then be loaded onto browsers hassle-free.

What is the Use of Webkit in CSS3?

This question is not only about Webkit and CSS but also evaluates your understanding of web browsers such as Chrome and Safari and how Webkit is used on both browsers.

Consider giving an answer similar to this one:

Webkit is a technological term commonly used in the CSS syntax for optimizing content in Chrome and Safari browsers. The Webkit code may be added into CSS to ensure it runs smoothly with data on most popular browsers, eliminating cross-compatibility risk.

Webkit is a rendering engine frequently used in CSS3. It allows the display of CSS and HTML elements on different browsers, including earlier versions of Opera, Chrome, and Safari. It also offers functionality that ensures consistency across all platforms it operates on.

Webkit is only one of the several browser web engines, such as Gecko (compatible with Mozilla Firefox), EdgeHTML (used by Microsoft Edge before switching to Chromium), and Presto (older version of Opera). However, it has gained significant popularity due to its excellent features and widespread compatibility.

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What are the Uses of Child Selectors in CSS?

This question helps the interviewer get a brief insight into your knowledge of CSS, HTML, and related elements. Be sure to give an impressive answer that demonstrates your expertise in the field.

Here is how you can answer this:

Child selectors are programs that allow the selection of all the children elements of a parent element. In CSS, child selectors are powerful tools that can be used to target specific elements.

The child selectors are represented by the ‘greater than (>)’ symbol. The software allows developers to perform numerous actions or apply various styles exclusively to the immediate child elements. The child selectors in CSS are substantially useful for developing granular and refined styles, achieving improved CSS targeting, and controlling some child elements – specifically their appearance.

Final Takeaways!

This set of five common questions and answers will help you impress the interviewer and land your dream job. While your answers do not have to be the exact same, ensure that you mention the technological terms mentioned in each answer while answering the respective questions with full understanding. Be confident in your knowledge and do your homework before appearing for your interview. This will help you answer the questions correctly and help you land your dream job!

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