Universal Containers would like to update their accounting system every time an opportunity is changed to Closed-Won their accounting system occasionally is offline for 3-4 hours to support month-end processing, and they would like the integration design to ensure that no transactions are lost during this down time. Which two integration designs should the architect consider? Choose 2 answers
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Utilize the enterprise WSDL to query Salesforce from the Accounting system for opportunities that have changed to Closed-Won.
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Utilize an Enterprise Service Bus to the web service calls between Salesforce and the accounting System.
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Utilize workflow outbound messaging, which has a built-in queuing framework.
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Utilize an Apex trigger with an @future class to callout to the accounting system after the month-end processing is complete.