ExamGecko
Search Search Login
Home Home / Salesforce / Certified MuleSoft Developer II
Question list
Search
Search

List of questions

Search
Open VPLUS File
Convert VPLUS to PDF

Related questions

A Mule implementation uses a HTTP Request within an Unit Successful scope to connect to an API. How should a permanent error response like HTTP:UNAUTHORIZED be handle inside Until Successful to reduce latency?
An order processing system is composed of multiple Mule application responsible for warehouse, sales and shipping. Each application communication using Anypoint MQ. Each message must be correlated against the original order ID for observability and tracing. How should a developer propagate the order ID as the correlation ID across each message?
A healthcare portal needs to validate the token that it sends to a Mule API. The developer plans to implement a custom policy using the HTTP Policy Transform Extension to match the token received in the header from the heathcare portal. Which files does the developer need to create in order to package the custom policy?
Refer to the exhibit. When creating a new project, which API implementation allows for selecting the correct API version and scaffolding the flows from the API specification?
Refer to the exhibit. Based on the code snippet, schema,json file, and payload below, what is the outcome of the given code snippet when a request is sent with the payload?
An API has been developed and deployed to CloudHub Among the policies applied to this API is an allowlist of IP addresses. A developer wants to run a test in Anypoint Studio and does not want any policies applied because their workstation is not included in the allowlist. What must the developer do in order to run this test locally without the policies applied?
Which statement is true when working with correlation IDS?
Refer to the exhibit. A Mute Object Store is configured with an entry TTL of one second and an expiration interval of 30 seconds. What is the result of the flow if processing between os'store and os:retrieve takes 10 seconds?
Which type of cache invalidation does the Cache scope support without having to write any additional code?
When implementing a synchronous API where the event source is an HTTP Listener, a developer needs to return the same correlation ID back to the caller in the HTTP response header. How can this be achieved?

Question 36 - Certified MuleSoft Developer II discussion

Report
Export

Which pattern should be used to invoke multiple HTTP APIs in parallel and roll back failed requests in sequence?

A.
A database as a transactional outbox and an Until Successful router to retry any requests
Answers
A.
A database as a transactional outbox and an Until Successful router to retry any requests
B.
A Parallel for Each scope with each HTTP request wrapped in a Try scope
Answers
B.
A Parallel for Each scope with each HTTP request wrapped in a Try scope
C.
Scatter-Gather as central Saga orchestrator for all API request with compensating actions for failing routes
Answers
C.
Scatter-Gather as central Saga orchestrator for all API request with compensating actions for failing routes
D.
VM queues as a reliability pattern with error handlers to roll back any requests
Answers
D.
VM queues as a reliability pattern with error handlers to roll back any requests
Suggested answer: C

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.

Reference: https://docs.mulesoft.com/mule-runtime/4.3/scatter-gather-concept https://docs.mulesoft.com/mule-runtime/4.3/saga

Show Answer
asked 23/09/2024
BRUNO DE BRIDA
38 questions
PreviousPreviousNextNext
User
Your answer:
0 comments
Sorted by

Leave a comment first

ExamGecko

Copyright @2023 ExamGecko | All right reserved

Mail us: [email protected]
About us
Contact us
Twitter X
Facebook
Medium
Convert VPLUS to PDF
Open VPLUS files Easily and Quickly
Privacy Policy
Disclaimer
Terms