Which two statements are true about WSDL 1.1 and the Basic Profile? (Choose two.)
A.
WSDL does NOT recommend a specific system for user-defined datatypes.
B.
WSDL recommends the use of XML Schema for user-defined datatypes.
C.
WSDL mandates the use of XML Schema for user-defined datatypes.
D.
Basic Profile recommends the use of XML Schema for user-defined datatypes.
E.
Basic Profile mandates the use of XML Schema for user-defined datatypes.
F.
Basic Profile recommends the use of either XML Schema or DTD for user-defined datatypes.
WSDL1.1 and WS-I basic profile:
the former just recommends to use schema than DTD,
the latter mandates to use schema to define data type
XML Schema is used to define how an XML document is structured
The recommended approach to design services is to define your services in WSDL and XML Schema before writing any code
see also :
https://access.redhat.com/documentation/en-US/Fuse_ESB/4.3.1/html-single/Writing_WSDL_Contracts/index.html
WSDL 1.1 uses XML Schema as one of its type systems. The Profile mandates the use of XML Schema as the type system for WSDL descriptions of Web Services
see also :
http://www.ws-i.org/Profiles/BasicProfile-1.1-2004-07-21.html