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Salesforce Mule-Dev-301 : Salesforce Certified MuleSoft Developer II

Mule-Dev-301 real exams

Exam Code: Mule-Dev-301

Exam Name: Salesforce Certified MuleSoft Developer II

Updated: Oct 08, 2026

Q & A: 62 Questions and Answers

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Salesforce Mule-Dev-301 Exam Syllabus Topics:

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

Salesforce Certified MuleSoft Developer II Sample Questions:

Question #1
A Mule application deployed to a standalone Mule runtime uses VM queues to publish messages to be consumed asynchronously by another flow.
In the case of a system failure, what will happen to in-flight messages in the VM queues that have not been consumed?

A. For persistent queues, the message will be processed after the system comes online
B. For any type of queue, the message will be lost
C. For any type of queue, the message will be processed after the system comes online
D. For transient queues, the message will be processed after the system comes online


Question #2
Which command is used to convert a JKS keystore to PKCS12?

A. keytool -importkeystore -srckeystore keystore.p12 -srcstoretype JKS -destkeystore keystore.p12 - deststoretype PKCS12
B. keytool -importkeystore -srckeystore keystore.p12 -srcstoretype PKCS12 -destkeystore keystore.jks - deststoretype JKS
C. keytool -importkeystore -srckeystore keystore.jks -srcstoretype PKCS12 -destkeystore keystore.p12 - deststoretype JKS
D. keytool -importkeystore -srckeystore keystore.jks -srcstoretype JKS -destkeystore keystore.p12 - deststoretype PKCS12


Question #3
A Mule API receives a JSON payload and updates the target system with the payload. The developer uses JSON schemas to ensure the data is valid.
How can the data be validated before posting to the target system?

A. Add the JSON module dependency and add the validate schema operation in the flow, configured to reference the schema
B. Using the DataWeave If Else condition, test the values of the payload against the examples included in the schema
C. Use a DataWeave 2.0 transform operation, and at the top of the DataWeave script, add: %dw 2.0 / import json-module
D. Apply the JSON Schema policy in API Manager and reference the correct schema in the policy configuration


Question #4
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:

A. nullPayload
B. OS:KEY_NOT_FOUND
C. originalPayload
D. testPayload


Question #5
Refer to the exhibit.
What action must be performed to log all the errors raised by the VM Connector?
Exhibit:

A. Configure < Logger level="ERROR"/ > inside the VM Connector configuration
B. Add < AsyncLogger name="org.mule.extensions.vm" level="ERROR"/ > inside the Loggers tag
C. Nothing, as error-level events are automatically logged
D. Add < AsyncLogger name="org.mule.extensions.vm" level="ERROR"/ > inside the Appenders tag


Solutions:

Question #1
Correct Answer: A
Question #2
Correct Answer: D
Question #3
Correct Answer: A
Question #4
Correct Answer: D
Question #5
Correct Answer: B

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