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Salesforce Mule-Dev-301 Exam Syllabus Topics:

Section	Objectives
Integration and API-led Connectivity	- API-led connectivity principles - System, Process, and Experience APIs design
DataWeave and Data Transformation	- DataWeave scripting and transformations - Mapping, filtering, and payload manipulation
Error Handling and Troubleshooting	- Debugging and logging techniques - Exception handling strategies in Mule applications
Security and Governance	- Authentication and authorization mechanisms - API policies and security enforcement
Deployment and Testing	- Deployment strategies across environments - Unit testing and integration testing approaches
Anypoint Platform Development	- Anypoint Studio usage and project structure - Mule application development

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Salesforce Certified MuleSoft Developer II Sample Questions (Q38-Q43):

NEW QUESTION # 38
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?

A. The Mule flow will execute successfully with status code 204
B. The Mule flow will execute successfully with status code 200m and a response will display the message '' Age in years which must equal to or greater than zero.''
C. The Mule flow will execute successfully with status code 200, and the response will be the JSON sent in request
D. The Mule flow will throw the exception 'JSON:SCHEMA_NOT_HONOURED

Answer: D

Explanation:
Based on the code snippet, schema.json file, and payload below, the outcome of the given code snippet when a request is sent with the payload is that the Mule flow will throw the exception 'JSON:SCHEMA_NOT_HONOURED'. This is because the payload does not conform to the schema.json file, which specifies that age must be a number greater than or equal to zero. The payload has age as a string with a negative value, which violates the schema. Therefore, the validate-schema operation throws an error with type 'JSON:SCHEMA_NOT_HONOURED'. Reference: https://docs.mulesoft.com/json-module/1.1/json-validate-schema

NEW QUESTION # 39
Refer to the exhibit.
What required changes can be made to give a partial successful response in case the United Airlines API returns with a timeout?

A. Add a Scatter-gather component inside a Try scope.
Set the payload to a default value 'Error' inside the error handler using the On Error Propagate scope.
B. Add Flow Reference components inside a Try scope.
Set the payload to a default value'' insider the error handler using the ON Error Continue scope
C. Add a Scatter-Gather component inside a Try scope.
Set the payload to a default value 'Error'' inside the error handler using the On Error Continue scope.
D. Add Flow Reference components inside a Try scope
Set the payload to a default value '' inside the error handler using the On Error Propagate scope

Answer: C

Explanation:
To give a partial successful response in case the United Airlines API returns with a timeout, the developer should add a Scatter-Gather component inside a Try scope, and set the payload to a default value 'Error' inside the error handler using the On Error Continue scope. A Scatter-Gather component allows sending multiple requests concurrently and aggregating the responses into an array. A Try scope allows handling errors that occur within it using an error handler. An On Error Continue scope allows continuing the flow execution after handling an error. Therefore, by using these components, the developer can send requests to both APIs in parallel, handle any timeout errors from United Airlines API, and return a partial response with a default value for that API. Reference: https://docs.mulesoft.com/mule-runtime/4.3/scatter-gather-concept https://docs.mulesoft.com/mule-runtime/4.3/try-scope-concept https://docs.mulesoft.com/mule-runtime/4.3/on-error-continue-concept

NEW QUESTION # 40
A mule application exposes and API for creating payments. An Operations team wants to ensure that the Payment API is up and running at all times in production.
Which approach should be used to test that the payment API is working in production?

A. Create a health check endpoint that listens on a separate port and uses a separate HTTP Listener configuration from the API
B. Monitor the Payment API directly sending real customer payment data
C. Configure the application to send health data to an external system
D. Create a health check endpoint that reuses the same port number and HTTP Listener configuration as the API itself

Answer: A

NEW QUESTION # 41
A heathcare customer wants to use hospital system data, which includes code that was developed using legacy tools and methods. The customer has created reusable Java libraries in order to read the data from the system.
What is the most effective way to develop an API retrieve the data from the hospital system?

A. Include the libraries writes deploying the code into the runtime
B. Install libraries in a local repository and refer to it in the pm.xml file
C. Create the Java code in your project and invoice the data from the code
D. Refer to JAR files in the code

Answer: B

Explanation:
To develop an API that retrieves data from a hospital system using reusable Java libraries, the developer should install libraries in a local repository and refer to it in the pom.xml file. This way, the developer can use Maven to manage dependencies and invoke Java code from Mule applications using Java Module operations. Reference: https://docs.mulesoft.com/mule-runtime/4.3/java-module-reference#add-the-java-module-to-your-project https://docs.mulesoft.com/mule-runtime/4.3/java-module-reference#invoke-java-code

NEW QUESTION # 42
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. nullPayload
B. OS:KEY_NOT_FOUND
C. testPayload
D. originalPayload

Answer: A

Explanation:
The result of the flow is nullPayload if processing between os:store and os:retrieve takes 10 seconds. This is because the entry TTL of the object store is one second, which means that any stored value expires after one second and is removed from the object store. The expiration interval of 30 seconds only determines how often the object store checks for expired values, but it does not affect the TTL. Therefore, when os:retrieve tries to get the value after 10 seconds, it returns nullPayload because the value has already expired and been removed. Reference: https://docs.mulesoft.com/object-store/osv2-faq#how-does-the-time-to-live-work

NEW QUESTION # 43
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