Exam MCD-Level-2 Topic 1 Question 2 Discussion

Actual exam question for MuleSoft's MCD-Level-2 exam
Question #: 2
Topic #: 1
Which pattern should be used to invoke multiple HTTP APIs in parallel and roll back failed requests in sequence?

Suggested Answer: C Vote an answer

Explanation
To invoke multiple HTTP APIs in parallel and roll back failed requests in sequence, the developer should use a Scatter-Gather router as a central Saga orchestrator for all API requests with compensating actions for failing routes. A Scatter-Gather router executes multiple routes concurrently and aggregates the results. A Saga orchestrator coordinates a series of actions across different services and handles failures by executing compensating actions. Therefore, using a Scatter-Gather router as a Saga orchestrator allows invoking multiple HTTP APIs in parallel and rolling back any failed requests in sequence. References:
https://docs.mulesoft.com/mule-runtime/4.3/scatter-gather-concept
https://docs.mulesoft.com/mule-runtime/4.3/saga

by Polly at Jul 22, 2026, 04:47 AM

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