Interview questions for Web designer

1. What is the difference between SOAP and REST?

SOAP REST
A Web Development protocol An architectural platform
Works with XML Works with XML, HTML, and plain text
SOAP cannot use REST REST can make use of SOAP

2. What is the use of a namespace in Web Development?

A namespace is a simple global object that is used to hold methods, properties, and other objects in them. It adds ease of use via modularity, thereby providing users with the ability to reuse the code and avoid naming conflicts.

3. What is W3C and why is it important?

A web developer should take responsibility for the content they produce, see that it is accessible by all users and follows W3C standards. This question will let you know if a candidate has a working knowledge and respect of W3C. What to look for in an answer:
• General knowledge
• Consideration of standards
• Specifics on how they adhere to standards
Example:
“W3C stands for World Wide Consortium and it is an international community that focuses on developing and standardizing the web. As a web developer, enforcing these standards ensures that web content is accessible in all browsers to reach all audiences, as well as optimizes the user experience. For example, using W3C-compliant CSS and XML allows every website to function similarly, but also improves SEO.”

4. What are the newly introduced input types in HTML5?

HTML5 has had multiple revamps in the past years, and the addition of input types has made it very easy to work with. Some of these input types are as follows:
• color
• date
• Datetime-local
• email
• month
• number range

5. What are the form elements that support media content in HTML5?

There are five main elements in HTML5 that support media:
• <audio>
• <video>
• <source>
• <embed>
• <track>

6. What is SVG and why is it used?

SVG stands for Scalable Vector Graphics. It is used to display vector-based graphics over the web. The graphical content it can render is based on an XML format. With SVG, the graphical content is of superior quality thereby providing the user with the ability to furnish high-quality images.

7. What is the use of Canvas in HTML?

Canvas was added onto HTML5 to give users the ability to draw graphics on the go, using JavaScript. There are a variety of methods in <canvas> to allow for the drawing of paths, circles, boxes, images, and more.
Next up on this top Web Developer interview questions and answers, let us understand the difference between canvas and SVG.

8. Explain what are the key responsibilities of a Web Developer?

• Program test and debug all web applications
• Design, develop, test and deploy web applications
• Uploading sites onto server and registering it with different search engines
• Coordinate with other designers and programmers to develop web projects
• Fix bugs, troubleshoot and resolve problems
• In case of system failure initiate periodic testing and implement contingency plans
• Develop appropriate code structures to solve specific tasks
• Support and assist in the upkeep and maintenance of websites
• Assume ownership of code throughout staging, development, testing and production

9.  What web developer should know?

A good web developer should know
• HTML
• CSS
• SQL
• PHP/Ruby/Python
• JQuery
• JavaScript

10. Explain what is CORS? How does it work?

(CORS) Cross-Origin Resource Sharing is a mechanism that enables many resources (e.g., JavaScript, fonts etc.) on a web page to be requested from another domain outside the domain from which the resource originated. It is a mechanism supported in HTML5 that manages XMLHttpRequest access to a domain different.
4) List out the advantage of HTTP/2 as compared with HTTP 1.1?
The advantage of HTTP/2 compared to HTTP/1.1 is
• HTTP headers data compression
• Server push technologies
• Over a single TCP connection parallel loading of page elements
• Prioritization of request

11. What is the difference between XHTML and HTML?

XHTML HTML
Tags should be in lowercase It is not case sensitive
Tags should be closed once opened Open-ended tags can be used
Attributes must be enclosed in double quotes Attributes can be used without quotation marks

12. What are the various data types present in JavaScript?

JavaScript supports the following data types:
• Boolean
• Number
• Object
• Undefined
• Null
• String
• Function

13. What sparked your interest in web development?

Did the candidate want to become a web developer at an early age? Are they self-taught? Learning why a candidate chose web development can help determine their level of passion and commitment to the profession. What to look for in an answer:
• Enthusiasm
• Motivation
• Experience
Example:
“As a previous marketing coordinator, I frequently used an online tool to create and customize email campaigns. I found the drag-and-drop feature buggy and discovered that I could achieve the look I was going for if I edited the HTML instead. I became fascinated the ability a web developer has to be imaginative, artistic and technical, while developing a product that benefits and inspires others.”

14. How can styles or classes be changed in elements using JavaScript?

JavaScript can be used to easily modify classes and styles in an element by making use of the following syntax:
Modify styles: document.getElementById(“input”).style.fontSize = “10”;
Modify class: document.getElementById(“button”).className = “classname”;
Next up on this top Web Development interview questions and answers blog, let us take a look at the advanced set of questions.