Discussion
The basic web services platform is a combination of ............. and ...........
(i) RDF
(ii) XML
(iii) HTTP
(iv) JAVA
Answer: D
The basic web services platform is XML and HTTP, so the answer is (ii) and (iii) are correct.
Web services let applications exchange data over the web regardless of platform. Their basic platform combines XML, which carries the data in a self-describing, platform-neutral form, with HTTP, the transport protocol that already runs everywhere on the web. Standards such as SOAP and WSDL are built on these two.
RDF is a data model for describing resources on the semantic web, and Java is one programming language among many in which web services may be written. Neither is part of the basic platform, so every option naming (i) or (iv) is wrong.
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