Add URL and Attachment Answer Content Types
URL Answers provide an easy way to create links to web pages as knowledge base answers. These answers represent URLs to external content. You create a URL Answer by entering the URL containing the answer for the given question in the URL field of the Add Article page.
Attachment Answers provide easy access to documents that can be updated and revised. When users access the answer, they see the latest revision. You create an Attachment Answer by clicking Attachment on the Add Article page and selecting the documenmt you want to be the source for the answer.