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Salesforce Mule-Dev-301 Exam Syllabus Topics:

Salesforce Certified MuleSoft Developer II Sample Questions:

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

A) A Parallel for Each scope with each HTTP request wrapped in a Try scope
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) VM queues as a reliability pattern with error handlers to roll back any requests

2. 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?

A) originalPayload
B) nullPayload
C) OS:KEY_NOT_FOUND
D) testPayload

3. The flow is invoicing a target API. The API's protocol is HTTPS. The TLS configuration in the HTTP Request Configuration global element is set to None. A web client submits a request to http:localhost:8081/vehicles.

If the certificate of the target API is signed by a certificate authority (CA), what is true about the HTTP Request operation when the flow executes?

A) The HTTP Request operation will succeed if the CA's certificate is present in the JRE's default truststore.
B) The HTTP Request operation will always fail regardless of the CA
C) The HTTP Request operation will succeed if the CA'S certificate is present in the JRE's default keystore
D) The HTTP Request operation will always succeed regardless of the CA

4. 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 Propagate 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 Continue to catch permanent errors like HTTP UNAUTHORIZED.

5. 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) Use the default correlation ID, Anypoint MQ will sutomatically propagate it.
B) Use the underlying HTTP request of Anypoint MQ to set the 'X-CORRELATION_ID' header to the order ID
C) Wrap all Anypoint MQ Publish operations within a With CorrelationID scope from the Tracing module, setting the correlation ID to the order ID
D) Set a custom Anypoint MQ user property to propagate the order ID and set the correlation ID in the receiving applications.

Solutions: