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Salesforce Mule-Dev-301 Exam Syllabus Topics:

Salesforce Certified MuleSoft Developer II Sample Questions:

1. A Mule application deployed to a standardalone Mule runtime uses VM queues to publish messages to be consumed asynchronously by another flow.
In the case of a system failure, what will happen to in-flight messages in the VM queues that have been consumed?

A) For transient queues, the message will be processed after the system comes online
B) For any type of queue, the message will be lost
C) For nay type of queue, the message will be processed after the system comes online
D) For persistent queues, the message will be processed after the system comes online

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

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

3. 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?

A) In Until Successful configuration, set the retry count to 1 for error type HTTP: UNAUTHORIZED.
B) Configure retrying until a MULERETRY_EXHAUSTED error is raised or the API responds back with a successful response.
C) Put the HTTP Request inside a try scope in Unit Successful.
In the error handler, use On Error Continue to catch permanent errors like HTTP UNAUTHORIZED.
D) Put the HTTP Request inside a try scope in Unit Successful.
In the error handler, use On Error Propagate to catch permanent errors like HTTP UNAUTHORIZED.

4. 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?

A) Run the test as-s, with no changes because the Studio runtime will not attempt to connect to API Manager
B) Deactivate the API in API Manager so the Autodiscovery element will not find the application when it runs in Studio
C) Create a properties file specifically for local development and set the API instance ID to a value that is not used in API Manager
D) Pass in the runtime parameter ''-Danpow.platform.gatekeeper=disabled''

5. Which pattern can a web API use to notify its client of state changes as soon as they occur?

A) HTTP Webhock
B) Schedule Event Publisher
C) Shared database trigger
D) ETL data load

Solutions: