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Salesforce Mule-Dev-301 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Expose Production-Ready Anypoint Platform Managed APIs13%- Manage APIs with Anypoint Platform
  • 1. Implement server-side API caching
  • 2. Configure API policies
  • 3. Implement HTTP callbacks
  • 4. Implement API versioning
  • 5. Request and manage API access
Topic 2: Implement Performant and Reliable Mule Applications27%- Optimize reliability and performance
  • 1. Implement asynchronous processing
  • 2. Validate assertions using validation modules
  • 3. Implement performant API invocations
  • 4. Build fault-tolerant message processing
  • 5. Implement ObjectStore persistence
Topic 3: 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. Create custom API rules
  • 4. Implement Maven-based automated deployments
  • 5. Optimize Maven build configurations
Topic 4: Secure Data at Rest and in Transit20%- Implement security best practices
  • 1. Expose APIs over HTTPS
  • 2. Implement TLS mutual authentication
  • 3. Secure sensitive data in Mule applications
  • 4. Implement secure property management
  • 5. Create and distribute certificates and keys
Topic 5: 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

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Salesforce Certified MuleSoft Developer II Sample Questions (Q54-Q59):

NEW QUESTION # 54
Refer to the exhibits.
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?
Exhibits:

Answer: A

Explanation:
The flow passes the incoming HTTP request payload directly to the JSON Module's Validate schema operation. The referenced schema.json defines the age property as an integer with "minimum": 0. However, the request shown in the exhibit contains:
"age": -1
This violates the schema because -1 is below the permitted minimum. MuleSoft specifies that the JSON Module's Validate schema operation compares the input content with the supplied JSON Schema and, when the document does not conform, raises JSON:SCHEMA_NOT_HONOURED.
Consequently, normal flow execution stops at the validation operation unless an error handler explicitly consumes the exception. The Logger positioned after the validation operation is not executed in this flow because validation fails first.
The schema's description text-"Age in years which must be equal to or greater than zero."-is metadata describing the property; it does not automatically become a successful HTTP response. Similarly, the request payload is not returned through a successful normal path after the schema violation.
Therefore, because the supplied age value violates minimum: 0, Mule raises JSON:
SCHEMA_NOT_HONOURED.
Reference topics: JSON Module; Validate Schema operation; JSON Schema constraints; minimum; JSON:
SCHEMA_NOT_HONOURED.
Official documentation: https://docs.mulesoft.com/json-module/latest/json-schema-validation


NEW QUESTION # 55
A custom policy needs to be developed to intercept all cutbound HTTP requests made by Mule applications.
Which XML element must be used to intercept outbound HTTP requests?

Answer: B

Explanation:
The http-policy:processor element is used to intercept outbound HTTP requests made by Mule applications. It allows customizing the request before it is sent to the target API and modifying the response after it is received from the target API. Reference: https://docs.mulesoft.com/api-manager/2.x/policy-mule4-custom-policy#policy-xml-file


NEW QUESTION # 56
A company has been using CI/CD. Its developers use Maven to handle build and deployment activities.
What is the correct sequence of activities that takes place during the Maven build and deployment?

Answer: A

Explanation:
Maven's default lifecycle defines a deterministic sequence of lifecycle phases. When a later lifecycle phase is requested, Maven executes the preceding phases in their established order. For the phases represented in the question, the correct sequence is:
validate # initialize # compile # test # package # verify # install # deploy The validate phase checks that the project is correctly structured and required project information is available.
initialize prepares build state. compile compiles project source code, and test runs tests against the compiled code. package creates the distributable artifact-in a Mule application, typically the deployable Mule application package.
The verify phase performs checks needed to validate package quality. install places the built artifact into the local Maven repository, making it available to other local projects. Finally, deploy copies the final artifact to a remote repository or participates in the configured deployment process.
This ordering matters in MuleSoft CI/CD pipelines because Mule Maven Plugin goals are integrated into Maven's lifecycle rather than replacing Maven's lifecycle semantics. Moving test, verify, or install outside their established positions would represent an invalid lifecycle sequence.
Therefore, C is the correct sequence.
Reference topics: Maven default lifecycle; Mule Maven builds; CI/CD; package, verify, install, and deploy phases.


NEW QUESTION # 57
Which pattern can a web API use to notify its client of state changes as soon as they occur?

Answer: A

Explanation:
A web API can use HTTP Webhook to notify its client of state changes as soon as they occur. A webhook is an HTTP callback that allows an API to send real-time notifications to another system or application when an event happens. The client registers a URL with the API where it wants to receive notifications, and then the API sends an HTTP request to that URL with information about the event. Reference: https://docs.mulesoft.com/connectors/webhook/webhook-connector


NEW QUESTION # 58
What is the MuleSoft recommended method to encrypt sensitive property data?

Answer: D

Explanation:
Secure property management should isolate development, test, staging, and production environments rather than allowing secrets from one environment to provide access to another. MuleSoft's Secure Configuration Properties model supports this by using environment-specific property files-for example dev.secure.yaml, sandbox.secure.yaml, and prod.secure.yaml-and resolving the appropriate file through an environment property.
Sensitive values such as passwords, API credentials, and private service configuration should therefore be environment-specific. Production credentials should not normally be reused in development or testing. The encryption key used to protect those values should likewise be independently managed rather than shared broadly across security boundaries. This limits the impact if a non-production key or properties file is exposed.
The Secure Properties Tool encrypts the sensitive values using a supplied key, while the Mule runtime receives the corresponding decryption key separately at deployment/runtime. MuleSoft also emphasizes protecting that key rather than embedding it directly in application configuration.
Accordingly, the Developer II security model represented by this question expects both different sensitive property values and different encryption keys across environments.
Reference topics: Secure Configuration Properties; environment-specific secure files; encryption keys; secret isolation; deployment security.
Official documentation: https://docs.mulesoft.com/anypoint-code-builder/int-create-secure-configs


NEW QUESTION # 59
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