Looking for a question that combines the understanding of few web technologies [closed]

Question

I am teaching a web development course at a CS department, I wrote most of the final test by now, each question focus on a specific feature or a specific technology,

I wonder if you can think of/recommend a question that combine the knowledge of few technologies..

The course mostly covers: HTML, CSS, JS, HTTP, Servlets, JSP and JDBC. (as well as AJAX, ORM, basic security issues like SQL-Injection and XSS, HTML5, REST APIs)

EDIT: I will super appreciate questions with answers :-) thanks!

I'll give the bounty to the question with the highest rank, so please vote! I honestly like most of the questions here, thank you all :-)

Answer 1

Explain the relationship of the DOM to each of the following technologies: HTML, CSS, JavaScript.

The goal here is for the answer to make clear the student understands that HTML generates a DOM structure, CSS affects how that structure is rendered, and JavaScript affects how that structure is modified. If you understand how it all ties back into the DOM, all client-side coding becomes straightforward.