Transferring JSON information from client to server and back again often includes HTTP requests. Match each method with the best choice describing its use. 1.Sends data to specific server to create or update information. 2.Sends data to specific server to create or update information without the risk of creating the resource more than once. 3.Previews what the GET request response might be without the body of the text. 4.Learns the communication channels used by the target source. 5.Requests information from a specific source. 6.Removes information.