Web Developer Mock Interview

Master 30 Web Developer interview questions covering front-end, back-end, and full-stack scenarios.

Question 24 of 30

What do you know about CORS?

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William Swansen has worked in the employment assistance realm since 2007. He is an author, job search strategist, and career advisor who helps individuals worldwide and in various professions to find their ideal careers.

During the interview for the web developer's position, you will be asked many different questions about the technology used in your field. While you can't know about all the available technologies, you should be familiar with the most common ones. Additionally, the interviewer will be interested if you are up to date on some of the more recently released technologies. Reviewing these before the interview will increase your awareness and ability to at least identify what they do.

William Swansen

"CORS, which stands for Cross-Origin Resource Sharing, is an HTML5 technology that allows users to request different resources from a domain outside of the domain from which the resource came. Essentially, it enables two different websites to share resources. Normally this is not allowed due to security concerns, especially if the website uses a script to request the resource. CORS overcomes this by using code to identify the requesting domain, so the receiving domain understands that the request is valid."

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30Web Developer Interview Questions & Answers

Web Developer

1.Tell me some considerations in selecting a font size for an adaptive web site.

Web Developer

2.What are the possible values for the display attributes that are supported by all browsers?

Web Developer

3.How would you write an SQL statement that would select only customers who made multiple orders within a single week?

Web Developer

4.Tell me about the most challenging website you created from start to finish.

Web Developer

5.What was your least favorite website you've created? Why did you feel this way?

Web Developer

6.What was your most successful website ever created? Why did it go so well?

Web Developer

7.Do you enjoy working long hours on projects?

Web Developer

8.Name several reasons why a website is not performing well or is slow to respond to user prompts.

Web Developer

9.How does the browser determine where to place positioned elements?

Web Developer

10.What are the five possible values for position for elements in a web page?

Web Developer

11.What is the default value for the display attribute for the image element?

Web Developer

12.Which responsive frameworks do you work with or recommend?

Web Developer

13.Do you know the programming language we primarily use?

Web Developer

14.Can you list some of the input types that are new to HTML5?

Web Developer

15.Explain to me briefly what the hide function is actually doing in jQuery withi the CSS.

Web Developer

16.Using jQuery, if you wanted to make a div move along the screen, what function would you most likely use?

Web Developer

17.Which Content Management Systems (CMS) have you worked with?

Web Developer

18.What's the difference between SOAP and REST?

Web Developer

19.Pretend I'm a tech novice. Can you explain what Namespacing in JavaScript is in plain English?

Web Developer

20.What do you do when an application stops working?

Web Developer

21.Have you ever done pair programming, and if so, what do you think of it?

Web Developer

22.Can you describe the workflow you use when developing a website or app?

Web Developer

23.What frameworks and tools do you use to identify and fix a performance bug?

Web Developer

24.What do you know about CORS?

Web Developer

25.Can you explain what a RESTful web service is and the purpose of each HTTP request method?

Web Developer

26.How do you organize your JavaScript code?

Web Developer

27.When developing a web application, do you prioritize SEO, maintainability, UX, performance, or security?

Web Developer

28.Can you discuss the use of namespacing in JavaScript?

Web Developer

29.Can you review this code and identify any errors you see?

Web Developer

Web Developer Mock Interview

What do you know about CORS?

30Web Developer Interview Questions & Answers

1.Tell me some considerations in selecting a font size for an adaptive web site.

2.What are the possible values for the display attributes that are supported by all browsers?

3.How would you write an SQL statement that would select only customers who made multiple orders within a single week?

4.Tell me about the most challenging website you created from start to finish.

5.What was your least favorite website you've created? Why did you feel this way?

6.What was your most successful website ever created? Why did it go so well?

7.Do you enjoy working long hours on projects?

8.Name several reasons why a website is not performing well or is slow to respond to user prompts.

9.How does the browser determine where to place positioned elements?

10.What are the five possible values for position for elements in a web page?

11.What is the default value for the display attribute for the image element?

12.Which responsive frameworks do you work with or recommend?

13.Do you know the programming language we primarily use?

14.Can you list some of the input types that are new to HTML5?

15.Explain to me briefly what the hide function is actually doing in jQuery withi the CSS.

16.Using jQuery, if you wanted to make a div move along the screen, what function would you most likely use?

17.Which Content Management Systems (CMS) have you worked with?

18.What's the difference between SOAP and REST?

19.Pretend I'm a tech novice. Can you explain what Namespacing in JavaScript is in plain English?

20.What do you do when an application stops working?

21.Have you ever done pair programming, and if so, what do you think of it?

22.Can you describe the workflow you use when developing a website or app?

23.What frameworks and tools do you use to identify and fix a performance bug?

24.What do you know about CORS?

25.Can you explain what a RESTful web service is and the purpose of each HTTP request method?

26.How do you organize your JavaScript code?

27.When developing a web application, do you prioritize SEO, maintainability, UX, performance, or security?

28.Can you discuss the use of namespacing in JavaScript?

29.Can you review this code and identify any errors you see?

30.What are the differences between JPEG and PNG compression, and when would you use each of these?