READ Free Dumps For Oracle- 1z0-897
| Question ID 4484 | A purchase order Web service is designed to be synchronous, request-response, and HTTP-based. 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.) |
| Option A | A. The client needs to use dynamic proxies instead of stubs. |
| Option B | B. The client needs to develop and deploy a Web service to accept callbacks. |
| Option C | C. The service only needs to change the WSDL from rpc-literal to document-literal. |
| Option D | D. The client and the service need to establish a mechanism to correlate the messages. |
| Option E | E. Given delays of up to ten days, a polling strategy is more efficient than callback. |
| Correct Answer | B,D |
| Question ID 4485 | An enterprise has a requirement to create a Web service to accept purchase orders. The order data contains some authorization information that is specific to each order (such as, who can access which parts of the order). Keeping in mind future enhancements in types of orders that the enterprise needs to accept, which two design solutions provide the most flexibility? (Choose two.) |
| Option A | A. a Web service interface with one method per accepted XML document type for a purchase order |
| Option B | B. a procedure-style Web service method that lists all data elements and all possible access control options |
| Option C | C. a document-style Web service method that accepts all types of XML documents representing purchase orders. |
| Option D | D. a Web service interface with one method for each combination of data elements and the access control options |
| Correct Answer | A,C |