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Salesforce Mule-Dev-301 Exam Syllabus Topics:

SectionWeightObjectives
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. Create custom API rules
  • 4. Implement unit testing with MUnit framework
  • 5. Implement Maven-based automated deployments
Implement Monitorable Mule Applications15%- Implement monitoring and logging
  • 1. Configure and evaluate application logs
  • 2. Expose health check endpoints
  • 3. Change log levels dynamically
  • 4. Implement monitoring dashboards and alerts
Implement Performant and Reliable Mule Applications27%- Optimize reliability and performance
  • 1. Validate assertions using validation modules
  • 2. Implement performant API invocations
  • 3. Build fault-tolerant message processing
  • 4. Implement asynchronous processing
  • 5. Implement ObjectStore persistence
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
Expose Production-Ready Anypoint Platform Managed APIs13%- Manage APIs with Anypoint Platform
  • 1. Implement API versioning
  • 2. Configure API policies
  • 3. Implement server-side API caching
  • 4. Request and manage API access
  • 5. Implement HTTP callbacks

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

NEW QUESTION # 22
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?

Answer: B

Explanation:
To test that the payment API is working in production, the developer should create a health check endpoint that listens on a separate port and uses a separate HTTP Listener configuration from the API. This way, the developer can isolate the health check endpoint from the API traffic and avoid affecting the performance or availability of the API. The health check endpoint should return a simple response that indicates the status of the API, such as OK or ERROR. Reference: https://docs.mulesoft.com/api-functional-monitoring/afm-create-monitor#create-a-monitor


NEW QUESTION # 23
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: A

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 # 24
Refer to the exhibit.
A Mule 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?
Exhibit:

Answer: D

Explanation:
The distinction between entry TTL and expiration interval is the key to this question. entryTtl="1" specifies that an Object Store entry becomes eligible for expiration after one second. However, expirationInterval="30" determines how frequently Mule's expiration process checks the Object Store and removes expired entries.
MuleSoft describes the expiration interval as the frequency at which the expiration thread runs. Therefore, expiration is not equivalent to immediate physical removal at precisely the TTL boundary.
The flow first sets the payload to originalPayload, then stores "testPayload" under the key testKey. Ten seconds subsequently elapse before the Retrieve operation executes. Although this exceeds the configured one-second TTL, only 10 seconds have elapsed since storage, while the expiration process is configured to run at 30-second intervals. The entry has therefore not yet been evicted when retrieval occurs.
Because testKey remains available, os:retrieve returns the stored value, testPayload. The configured default value nullPayload would be used only if the key were unavailable according to the Retrieve operation's behavior.
Reference topics: Object Store Connector; entry TTL; expiration interval; expiration thread; Store and Retrieve operations.
Official documentation: https://docs.mulesoft.com/object-store-connector/latest/object-store-connector- reference


NEW QUESTION # 25
Which statement is true about using mutual TLS to secure an application?

Answer: A

Explanation:
Standard TLS authenticates the server to the client through the server's public certificate. The client validates that certificate against its configured trusted certificate authorities. Mutual TLS extends this process by requiring the client to present its own certificate so that the server can authenticate the client's identity as well.
MuleSoft describes a TLS-enabled server as exposing its public certificate while retaining its private key, and states that TLS clients validate the server certificate against their trusted certificates. For two-way TLS, both keystore and truststore material are configured so that the server can additionally validate certificates presented by clients.
Accordingly, server identity authentication is part of the TLS handshake before completion of the mutual client-authentication exchange. This makes option C the valid statement in the context of the question.
mTLS does not inherently increase the symmetric encryption strength; cipher-suite strength is independent of whether one-way or two-way authentication is used. A hardware security module can be useful for protecting keys but is not mandatory for mTLS. Finally, mTLS authenticates certificate-bearing client identities, not necessarily individual application end users or their business authorization.
Reference topics: TLS; mutual TLS; two-way authentication; keystore; truststore; client certificate authentication.
Official documentation: https://docs.mulesoft.com/mule-runtime/4.3/tls-configuration


NEW QUESTION # 26
What is the MuleSoft recommended method to encrypt sensitive property data?

Answer: A

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 # 27
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