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Top 10 Web Development Interview Questions and Answers You Must Know to Ace Interviews in 2024!

Article by: Manish Methani

Last Updated: January 27, 2024 at 1:55pm IST
3 min 36 sec read

Explore the realm of web development through our guide, "Master Web Development: Top 10 Interview Questions with Answers." Enhance your skills, gain expert insights, and discover valuable tips to confidently ace interviews. Elevate your expertise, overcome challenges, and set yourself up for success in the dynamic web development landscape. Join us on this learning journey!

Master Web Development: Top 10 Interview Questions and Answers | Boost Your Skills and Ace Interviews | Expert Insights and Tips!

10 Web Development Interview Questions and Answers

1. Explain the difference between HTTP and HTTPS.

  • HTTP (Hypertext Transfer Protocol) is the standard protocol for transferring data over the web.
  • HTTPS (Hypertext Transfer Protocol Secure) is a secure version of HTTP that uses encryption to protect data in transit.

2. What is the Box Model in CSS?

  • The Box Model is a fundamental concept in CSS that describes the layout of elements. It consists of content, padding, border, and margin.
  • The size of an element is calculated by adding these components.

3. What is Responsive Web Design?

  • Responsive Web Design is an approach that makes web pages render well on a variety of devices and window or screen sizes. It uses flexible grids and layouts, images, and CSS media queries to achieve responsiveness.

4. Explain the purpose of the 'viewport' meta tag in HTML.

  • The 'viewport' meta tag controls the layout viewport of a document on a mobile device. It ensures that the content scales properly on different devices, providing a better user experience.

5. What is AJAX?

  • AJAX (Asynchronous JavaScript and XML) is a set of web development techniques used to create asynchronous web applications. It allows updating parts of a web page without reloading the entire page.

6. What is the purpose of a 'DOCTYPE' declaration in HTML?

  • A 'DOCTYPE' declaration defines the document type and version of HTML being used. It helps browsers to render a document correctly by specifying the rules for parsing the document.

7. Explain the concept of the Same-Origin Policy.

  • Same-Origin Policy is a security measure implemented by web browsers. It restricts web pages from making requests to a different domain than the one that served the web page, to prevent potential security vulnerabilities.

8. What is the role of 'localStorage' and 'sessionStorage' in web development?

  • 'localStorage' and 'sessionStorage' are Web Storage APIs in JavaScript. They provide a way to store key/value pairs locally in a user's browser.
  • 'localStorage' persists data even after the browser is closed, while 'sessionStorage' only lasts for the duration of the page session.

9. Differentiate between 'margin' and 'padding' in CSS.

  • 'Margin' is the space outside the border of an element, creating separation between the element and its surrounding elements.
  • 'Padding' is the space between the content of an element and its border.

10. Explain the purpose of the 'defer' attribute in a script tag.

  • The 'defer' attribute in a script tag is used to indicate that the script should be executed after the HTML document has been fully parsed.
  • It ensures that the script doesn't block the HTML parsing and is executed in order when the document is ready.

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