Examcollection Salesforce Mule-Dev-301 Questions Answers, Mule-Dev-301 Test Cram Review

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Salesforce Mule-Dev-301 Exam Syllabus Topics:

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

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Salesforce Certified MuleSoft Developer II Sample Questions (Q22-Q27):

NEW QUESTION # 22
Mule application A is deployed to CloudHub and is using Object Store v2. Mute application B is also deployed to CloudHub.
Which approach can Mule application B use to remove values from Mule application A'S Object Store?

Answer: D

Explanation:
To remove values from Mule application A's Object Store v2, Mule application B can use Object Store v2 REST API. This API allows performing operations on Object Store v2 resources using HTTP methods, such as GET, POST, PUT, and DELETE. Mule application B can use the DELETE method to remove values from Mule application A's Object Store v2 by specifying the object store ID and the key of the value to delete. Reference: https://docs.mulesoft.com/object-store/osv2-apis


NEW QUESTION # 23
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?

Answer: C

Explanation:
To propagate the order ID as the correlation ID across each message using Anypoint MQ, the developer should wrap all Anypoint MQ Publish operations within a With CorrelationID scope from the Tracing module, setting the correlation ID to the order ID. The With CorrelationID scope allows setting a custom correlation ID for any event that occurs within it. The Tracing module also enables distributed tracing across different Mule applications and services using Anypoint Monitoring. Reference: https://docs.mulesoft.com/tracing-module/1.0/tracing-module-reference#with-correlation-id-scope https://docs.mulesoft.com/tracing-module/1.0/tracing-module-concepts


NEW QUESTION # 24
A Mule application includes a subflow containing a Scatter.Gather scope. Within each log of the Scatter.Gatter. an HTTP connector calls a PUT endpoint to modify records in different upstream system. The subflow is called inside an Unit successful scope to retry if a transitory exception is raised.
A technical spike is being performed to increase reliability of the Mule application.
Which steps should be performed within the Mule flow above the ensure idempontent behavior?

Answer: C

Explanation:
To ensure idempotent behavior within a Mule flow that contains a subflow with a Scatter-Gather scope, the developer should ensure an error-handling flow performs corrective actions to roll back all changes if any leg of the Scatter-Gather fails. Idempotency means that multiple identical requests have the same effect as a single request. Therefore, if one of the HTTP requests inside the Scatter-Gather fails, the error-handling flow should undo any changes made by other successful requests to ensure consistency and avoid partial updates. Reference: https://docs.mulesoft.com/mule-runtime/4.3/scatter-gather-concept https://docs.mulesoft.com/mule-runtime/4.3/error-handling


NEW QUESTION # 25
When registering a client application with an existing API instance or API Group instance, what is required to manually approve or reject request access?

Answer: D

Explanation:
API access requested by a client application is represented through a contract between that application and an API instance or API Group instance. When manual approval is required, the administrator must possess both the relevant contract configuration and sufficient API Manager authority.
MuleSoft's API Manager documentation identifies two prerequisites for manually approving or rejecting an access request. First, an SLA tier must be configured for the application. Second, the user performing the approval must be an Organization Administrator, an API Manager Environment Administrator, or possess the Manage Contracts permission.
The Manage Contracts permission specifically grants the ability to manage contracts and their associated tiers within the API Manager environment. Exchange Administrator permissions alone do not satisfy this API Manager contract-management requirement.
The SLA component is also significant. API Manager contracts can govern access based on an SLA tier, allowing the API owner to determine permitted consumption levels and whether approval is automatic or manual.
Option C therefore contains the complete combination required by the platform: the application's SLA tier configuration plus appropriate administrative or contract-management authority.
Reference topics: API Manager Contracts; Client Applications; SLA Tiers; Manage Contracts permission; API access approval.
Official documentation: https://docs.mulesoft.com/api-manager/latest/manage-client-apps-latest-task Official documentation: https://docs.mulesoft.com/api-manager/latest/environment-permission-task


NEW QUESTION # 26
Refer to the exhibits.
The flow name is "implementation" with code for the MUnit test case.
When the MUnit test case is executed, what is the expected result?
Exhibit:

Answer: D

Explanation:
The significant attribute in the MUnit definition is expectedErrorType="APP:CUSTOM_ERROR". The referenced implementation flow deliberately invokes raise-error with exactly the same error type: APP:
CUSTOM_ERROR.
MUnit supports expected-error testing specifically for negative scenarios. When expectedErrorType is configured, the test is considered successful when execution produces that expected Mule error. The raised error is therefore not treated as an unexpected test failure; it satisfies the test's declared expectation.
The apparently failing assertion-testing true against equalTo(false)-does not change the result in this scenario because normal execution does not reach the validation chain after the referenced flow raises the expected error. The expected error terminates the execution path being tested and satisfies the MUnit expectation.
If the implementation generated a different error type, option B would apply. If it generated no error when an error was expected, the test would also fail. Here, however, the flow explicitly raises the exact application- defined error specified by the test.
Reference topics: MUnit Test Structure; expectedErrorType; Error Testing; Raise Error Component.
Official documentation: https://docs.mulesoft.com/munit/3.6/munit-test-concept


NEW QUESTION # 27
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