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Salesforce Mule-Dev-301 Exam Syllabus Topics:

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

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Salesforce Certified MuleSoft Developer II Sample Questions (Q36-Q41):

NEW QUESTION # 36
Mule application A is deployed to CloudHub and is using Object Store v2. Mule 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:
Object Store Connector provides Mule operations for interacting with object stores associated with the application in which the connector executes. It is not the mechanism for one independently deployed CloudHub application to directly operate on another application's Object Store v2 data.
For cross-application administration and access, MuleSoft provides the Object Store v2 REST APIs. These APIs support listing object stores and keys, storing and retrieving key-value pairs, and explicitly deleting keys and their values. Calls are authenticated with an Anypoint Platform bearer token and address the required organization, environment, store, partition, and key. MuleSoft's documented DELETE operation removes a specified key-value pair from the targeted Object Store v2 partition.
The CloudHub REST API manages CloudHub resources and deployments rather than application Object Store entries. The CloudHub Connector likewise does not provide the direct cross-application Object Store v2 deletion capability described here.
Therefore, application B can invoke the Object Store v2 REST API, subject to appropriate authorization and identification of application A's relevant Object Store resources, to remove values from that store.
Reference topics: Object Store v2; Object Store v2 REST APIs; partitions and keys; DELETE operations; CloudHub persistence.
Official documentation: https://docs.mulesoft.com/object-store/osv2-apis


NEW QUESTION # 37
A Mule application uses API autodiscovery to access and enforce policies for a RESTful implementation.
What needs to be configured for the flowRef attribute of the autodiscovery global element?

Answer: B

Explanation:
API Autodiscovery pairs a Mule API implementation with an API instance managed in API Manager. The global autodiscovery element requires the API instance identifier and a flowRef that identifies the flow where API Gateway policy enforcement begins.
MuleSoft explicitly states that flowRef must reference a flow containing an HTTP Listener. The referenced flow represents the inbound API entry point receiving the requests against which API Manager policies are enforced. Connectors that merely use HTTP internally are not sufficient for this requirement.
In an APIkit-generated application, the appropriate flow is typically the main API flow that contains the HTTP Listener and APIkit Router. Individual generated resource/operation flows execute later after routing; they are not the primary inbound policy-enforcement point. Similarly, the APIkit Console flow is intended for interactive API documentation/testing and should not be used as the flowRef for production policy enforcement.
The attribute is not simply supplied dynamically at runtime. It is part of the Mule application's Autodiscovery configuration and identifies the exact listener-based flow paired to API Manager.
Therefore, flowRef must identify the flow containing the HTTP Listener that receives the REST API's incoming requests.
Reference topics: API Autodiscovery; api-gateway:autodiscovery; flowRef; HTTP Listener; API Manager policy enforcement.
Official documentation: https://docs.mulesoft.com/mule-gateway/mule-gateway-config-autodiscovery-mule4


NEW QUESTION # 38
Refer to the exhibits.
A Mule application's pom.xml configures the Maven Resources plugin to exclude parsing binary files in the project's src/main/resources/certs directory.
Which configuration of this plugin achieves a successful build?
Exhibits - Options A and B:

Exhibits - Options C and D:

Answer: D

Explanation:
Resource filtering is designed primarily for textual resources in which Maven substitutes property expressions. Binary files such as PKCS#12 keystores and certificate files must not be passed through text filtering because filtering can corrupt their binary representation.
The Maven Resources Plugin provides the dedicated configuration element nonFilteredFileExtensions. Each additional extension is declared using a nested nonFilteredFileExtension. The plugin documentation specifically defines this parameter as the list of additional file extensions to which filtering must not be applied.
Option C correctly uses the documented structure:
< nonFilteredFileExtensions >
< nonFilteredFileExtension > p12 < /nonFilteredFileExtension >
< nonFilteredFileExtension > crt < /nonFilteredFileExtension >
< nonFilteredFileExtension > pem < /nonFilteredFileExtension >
< /nonFilteredFileExtensions >
This is important because the application's normal resource configuration can still use < filtering > true <
/filtering > for textual files while Maven leaves the listed certificate/keystore formats untouched.
The alternative constructs visible in the other exhibits, such as excludeFileExtensions or excludeBinaryFiles, are not the Maven Resources Plugin parameter used for this purpose.
Reference topics: Maven Resources Plugin; resource filtering; binary resources; nonFilteredFileExtensions; Mule Maven builds.
Official documentation: https://maven.apache.org/plugins/maven-resources-plugin/resources-mojo.html


NEW QUESTION # 39
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: A

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 # 40
A developer deploys an API to CloudHub and applies an OAuth API policy in API Manager. During testing, the API response is slow, so the developer reconfigures the API so that the out-of-the-box HTTP Caching policy is applied first, and the OAuth API policy is applied second.
What will happen when an HTTP request is received?

Answer: D

Explanation:
Policy ordering is critical when HTTP Caching is combined with security policies. Here, HTTP Caching is placed before OAuth. When a matching cached entry exists, the caching policy can satisfy the request immediately rather than allowing that request to continue toward the API implementation.
MuleSoft explicitly documents that policies positioned after the HTTP Caching policy are not applied to responses served from the cache. On a cache hit, HTTP Caching finds the stored response and prevents the request from progressing through the remaining downstream policy chain toward the backend.
Because OAuth is configured after caching in this scenario, OAuth is consequently bypassed for a cache hit.
This ordering has a significant security implication: authentication or authorization policies that must apply even to cached responses should be placed before the caching policy.
On a cache miss, by contrast, the request proceeds through the remaining policies, including OAuth, reaches the implementation, and the successful response can subsequently be cached.
Therefore, with the exact order stated in the question, a cache hit causes the HTTP Caching policy to return the cached response without executing the OAuth policy.
Reference topics: HTTP Caching Policy; API policy ordering; cache hit versus cache miss; security-policy placement.
Official documentation: https://docs.mulesoft.com/mule-gateway/policies-included-http-caching


NEW QUESTION # 41
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