Exam MCIA-Level-1 Topic 10 Question 222 Discussion

Actual exam question for MuleSoft's MCIA-Level-1 exam
Question #: 222
Topic #: 10

A retail company is implementing a MuleSoft API to get inventory details from two vendors by Invoking each vendor's online applications. Due to network issues, the invocations to the vendor applications are timing out intermittently, but the requests are successful after re-invoking each vendor application.
What is the most performant way of implementing the API to invoke each vendor application and to retry invocations that generate timeout errors?

A. Use a For-Each scope to invoke the two vendor applications in series, one after the other.
Place the For-Each scope inside an Until-Successful scope to retry requests that raise timeout errors. B. Use a Choice scope to Invoke each vendor application on a separate route.
Place the Choice scope inside an Until-Successful scope to retry requests that raise timeout errors. C. Use a Scatter-Gather scope to invoke each vendor application on a separate route.
Use an Until-Successful scope in each route to retry requests that raise timeout errors. D. Use a Round-Robin scope to invoke each vendor application on a separate route.
Use a Try-Catch scope in each route to retry requests that raise timeout errors.

Suggested Answer: C Vote an answer

To efficiently handle the invocation of vendor applications and retry requests that generate timeout errors, the most performant way is:
* Scatter-Gather Scope: Use a Scatter-Gather scope to invoke each vendor application in parallel. This approach allows the API to send requests to both vendors simultaneously, reducing overall processing time.
* Until-Successful Scope: Inside each route of the Scatter-Gather scope, use an Until-Successful scope to handle retries. The Until-Successful scope will retry the request in case of timeout errors until the request succeeds or the maximum retry limit is reached.
This combination ensures that the API can handle intermittent network issues efficiently while minimizing redundant transactions and maximizing performance.
References
* MuleSoft Documentation on Scatter-Gather Scope
* MuleSoft Documentation on Until-Successful Scope and Error Handling

by Ken at Sep 05, 2025, 03:30 AM

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