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Salesforce Mule-Dev-301 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Implement Performant and Reliable Mule Applications27%- Optimize reliability and performance
  • 1. Implement asynchronous processing
  • 2. Implement performant API invocations
  • 3. Build fault-tolerant message processing
  • 4. Validate assertions using validation modules
  • 5. Implement ObjectStore persistence
Topic 2: Expose Production-Ready Anypoint Platform Managed APIs13%- Manage APIs with Anypoint Platform
  • 1. Implement server-side API caching
  • 2. Implement API versioning
  • 3. Configure API policies
  • 4. Implement HTTP callbacks
  • 5. Request and manage API access
Topic 3: Implement Monitorable Mule Applications15%- Implement monitoring and logging
  • 1. Change log levels dynamically
  • 2. Expose health check endpoints
  • 3. Configure and evaluate application logs
  • 4. Implement monitoring dashboards and alerts
Topic 4: Implement Maintainable and Modular Mule Applications and Their Maven Builds25%- Implement modular Mule application structures
  • 1. Implement unit testing with MUnit framework
  • 2. Execute MUnit tests with Maven
  • 3. Optimize Maven build configurations
  • 4. Implement Maven-based automated deployments
  • 5. Create custom API rules
Topic 5: Secure Data at Rest and in Transit20%- Implement security best practices
  • 1. Expose APIs over HTTPS
  • 2. Secure sensitive data in Mule applications
  • 3. Implement secure property management
  • 4. Implement TLS mutual authentication
  • 5. Create and distribute certificates and keys

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Salesforce Certified MuleSoft Developer II Sample Questions (Q25-Q30):

NEW QUESTION # 25
A custom policy needs to be developed to intercept all outbound HTTP requests made by Mule applications.
Which XML element must be used to intercept outbound HTTP requests?

Answer: D

Explanation:
In Mule Gateway custom policies, inbound and outbound interception are represented by different policy blocks. The http-policy:source block surrounds processing that begins at an HTTP Listener and is therefore associated with incoming requests. To intercept HTTP requests generated by an application through an HTTP Request connector, the policy must instead define an http-policy:operation block.
MuleSoft explicitly documents outbound policies as policies that operate on outgoing HTTP requests. Within a custom policy, http-policy:operation allows policy logic to execute immediately before Mule reaches an HTTP Requester and again after that requester returns. An http-policy:execute-next element can be placed within the operation block to delimit pre-request and post-response processing.
This mechanism is appropriate for functionality such as adding outbound headers, enforcing outbound security rules, modifying requests, collecting telemetry, or inspecting downstream responses. http-policy:
source cannot provide equivalent outbound interception because it applies around the inbound source and application flow. http-policy:processor is not the Mule Gateway construct used for this purpose.
Therefore, the required element is http-policy:operation.
Reference topics: Mule Gateway Custom Policies; Outbound Policies; http-policy:operation; http-policy:
execute-next; HTTP Request interception.
Official documentation: https://docs.mulesoft.com/mule-gateway/policies-custom-mule-4-reference


NEW QUESTION # 26
A Mule application defines an SSL/TLS keystore property "tls.keystore.keyPassword" as secure.
How can this property be referenced to access its value within the application?

Answer: B

Explanation:
Mule Secure Configuration Properties uses the secure:: prefix when an application references a property stored in a secure configuration properties file. Therefore, a property named tls.keystore.keyPassword is referenced using:
${secure::tls.keystore.keyPassword}
MuleSoft's Secure Configuration Properties documentation specifically states that the secure:: prefix is required when loading values from a secure properties file. The same syntax is used whether the property is consumed by a TLS configuration, connector configuration, global element, or another Mule component.
The ${...} syntax represents Mule configuration-property resolution. By contrast, DataWeave runtime expressions use the #[...] form; simply placing a secure-property identifier inside that syntax does not constitute the documented secure configuration-property reference. Likewise, the other alternatives do not use the required Mule configuration-property syntax.
This distinction is particularly important for TLS credentials. A keystore key password should be maintained externally from Mule XML, encrypted in the secure properties source, and resolved through the Secure Configuration Properties module at runtime.
Therefore, the correct reference is ${secure::tls.keystore.keyPassword}.
Reference topics: Secure Configuration Properties; secure:: prefix; encrypted application properties; TLS keystore credentials.
Official documentation: https://docs.mulesoft.com/mule-runtime/4.9/secure-configuration-properties


NEW QUESTION # 27
Refer to the exhibit.

A developer generates the base scaffolding for an API in Anypoint Studio.
Which HTTP status code is returned while testing using the API Kit console if no values are entered in client-secret?

Answer: A

Explanation:
Based on the code snippet and schema.json file below, when testing using the API Kit console if no values are entered in client-secret, HTTP status code 403 (FORBIDDEN) is returned. This is because client-secret is defined as a required header parameter in schema.json file, which means that it must be present in every request. If no values are entered in client-secret, then it is equivalent to omitting this header parameter, which violates the schema and causes APIKit Router to return HTTP status code 403. Reference: https://docs.mulesoft.com/apikit/4.x/apikit-4-headers


NEW QUESTION # 28
What is the MuleSoft recommended method to encrypt sensitive property data?

Answer: B

Explanation:
The MuleSoft recommended method to encrypt sensitive property data is to use the Secure Properties Tool that comes with Anypoint Studio. This tool allows encrypting properties files with a secret key and then decrypting them at runtime using the same key. The encryption key and sensitive data should be different for each environment to ensure security and avoid accidental exposure of sensitive data. Reference: https://docs.mulesoft.com/mule-runtime/4.3/secure-configuration-properties


NEW QUESTION # 29
Refer to the exhibit.

The flow name is ''implementation'' with code for the MUnit test case.
When the MUnit test case is executed, what is the expected result?

Answer: C

Explanation:
Based on the code snippet and MUnit test case below, when the MUnit test case is executed, the expected result is that the test case fails with an assertion error. This is because the assert-equals processor compares two values for equality, and fails if they are not equal. In this case, the expected value is 'Hello World', but the actual value returned by the implementation flow is 'Hello Mule'. Therefore, the assertion fails and an error is thrown. Reference: https://docs.mulesoft.com/munit/2.3/assert-equals-processor


NEW QUESTION # 30
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