A Level Computer Science OCR Practice Exam 2026 - Free Practice Questions and Study Guide

HTML tags are utilized to define the structure and layout of web pages, and one of their key functions is to set typefaces and styles for the text content. By using specific tags along with CSS (Cascading Style Sheets), HTML allows for customization of font sizes, styles (like bold or italic), and overall text appearance, giving web developers the ability to create visually appealing documents that enhance the user experience.

The other options focus on functions that HTML tags are not designed for. For example, HTML does not handle encryption, which is typically managed by other technologies and protocols. Additionally, while it does separate data values in a sense through structuring, that is not its primary function; it's more about presentation and layout. Lastly, storing binary data is not within the scope of HTML tags, as they primarily deal with text and multimedia elements rather than raw binary data storage.