The Amazon EC2 web service can be accessed using the ____ web services messaging protocol. This
interface is described by a Web Services Description Language (WSDL) document.
A.
SOAP
B.
DCOM
C.
CORBA
D.
XML-RPC
Explanation:
http://docs.aws.amazon.com/AWSECommerceService/latest/DG/WSDLLocation.html
A: A SOAP request is an XML data structure that your SOAP toolkit generates and sends to the service. As described by the service WSDL, the root element of this structure is named after the License Service action. You include the parameters for the request inside the root element, according to the WSDL.
A