Which of the following protocol lets a Web site list in an XML file information?

sitemaps
mashups
hashups
all of the mentioned

The correct answer is: A. sitemaps

A sitemap is a list of all the pages on a website. It is used by search engines to index the website and improve its ranking in search results. Sitemaps can be created in XML or HTML format.

A mashup is a web page or application that combines content from multiple sources. Mashups are often used to create new and innovative ways to view and interact with data.

A hashup is a type of mashup that uses data from social media platforms. Hashups are often used to create real-time updates or to track trends.

Sitemaps are the only option that allows a website to list information in an XML file.