Oracle
1Z0-897 · Question #25
1Z0-897 Question #25: Real Exam Question with Answer & Explanation
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Question
A purchase order Web service is designed to be synchronous, request-response, and HTTPbased. The existing service processes the request immediately. Because of new business requirements, the service can take up to ten days to perform a credit check before processing the order. Which two design changes should be made? (Choose two.)
Options
- AThe client needs to use dynamic proxies instead of stubs.
- BThe client needs to develop and deploy a Web service to accept callbacks.
- CThe service only needs to change the WSDL from rpc-literal to document-literal.
- DThe client and the service need to establish a mechanism to correlate the messages.
- EGiven delays of up to ten days, a polling strategy is more efficient than callback.
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