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