Compare and Contrast the Advantages and Drawbacks (design Trade-Offs) of Using Various Patterns, Such as: Remote Process Invocation—Request and Reply, Remote Process Invocation—Fire and Forget, Batch Data Synchronization, Remote Call-In, and UI Update Based on Data Changes. INTEGRATION-ARCHITECT Practice Questions (Page 4)

Questions 16–19

1. 16foundation · easy

   Which statement accurately describes a trade-off of the UI Update Based on Data Changes pattern?

   • AIt is best suited for batch data synchronization scenarios.
   • BIt enhances user experience by providing real-time updates but can increase network usage and implementation complexity.
   • CIt reduces network usage by only updating the UI when the user refreshes the page.
   • DIt simplifies implementation because it uses standard HTTP requests only.
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2. 17foundation · easy

   Which integration pattern is most appropriate when a large volume of data needs to be synchronized periodically and real-time updates are not required?

   • ABatch Data Synchronization
   • BRemote Call-In
   • CRemote Process Invocation—Request and Reply
   • DUI Update Based on Data Changes
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4. 18foundation · easy

   What is a common drawback of the Remote Process Invocation—Fire and Forget pattern?

   • AThe caller cannot easily detect if the remote process failed.
   • BIt increases latency because the caller must wait for an acknowledgment.
   • CIt always requires a complex orchestration layer to manage the request.
   • DIt is only suitable for batch processing, not real-time events.
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5. 19application · medium

   An e-commerce company needs to validate a customer's credit card in real time during checkout. The validation must complete before the order is submitted, and the external payment gateway typically responds in under 2 seconds. Which pattern should the architect use?

   • AFire-and-forget callout to the payment gateway, assuming success.
   • BBatch validation of all orders at the end of the day.
   • CUse a platform event to send the payment and later reconcile.
   • DSynchronous request-and-reply from Apex to the payment gateway.
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