HTML Tags Practice Test

The `alt` attribute is used to specify an alternate text for an image in HTML, which serves multiple important functions. When an image cannot be displayed, the text provided in the `alt` attribute is shown in its place. This helps improve the accessibility of web content, as screen readers can read this text aloud to users who are visually impaired, conveying the purpose or content of the image. Additionally, search engines use the `alt` text to understand the content of images, which can enhance search engine optimization (SEO) for web pages.

The other attributes mentioned do not serve this purpose: the `title` attribute provides additional information about an element, the `src` attribute specifies the source URL of an image, and the `href` attribute is used for linking to other web pages or resources.