Web Science/Part1: Foundations of the web/Hypertext Transfer Protocol/Content negotiation/quiz

{Which of the following HTTP requests should be used to request an XML file from a server + -  -  +
 * type="[]"}

{Which of the following HTTP requests would technically work (if implemented) to request an XML file from a server + +  +  +
 * type="[]"}

{What is the main aim of content negotiation? - human to machine communication over http - human to human communication over http + machine to machine communication over http - All of the above
 * type="[]"}