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: Sep 13, 2026

Q & A: 62 Questions and Answers

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Salesforce Mule-Dev-301 Exam Syllabus Topics:

SectionObjectives
Integration and API-led Connectivity- API-led connectivity principles
- System, Process, and Experience APIs design
DataWeave and Data Transformation- DataWeave scripting and transformations
- Mapping, filtering, and payload manipulation
Deployment and Testing- Unit testing and integration testing approaches
- Deployment strategies across environments
Error Handling and Troubleshooting- Debugging and logging techniques
- Exception handling strategies in Mule applications
Anypoint Platform Development- Anypoint Studio usage and project structure
- Mule application development
Security and Governance- Authentication and authorization mechanisms
- API policies and security enforcement

Salesforce Certified MuleSoft Developer II Sample Questions:

Question #1

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 validation before posting to the target system?

  • A. Using the DataWeave if Else condition test the values of the payload against the examples included in the schema
  • B. Apply the JSON Schema policy in API Manager and reference the correct schema in the policy configuration
  • C. Use a DataWeave 2.09 transform operation, and at the log of the DataWeave script, add:
    %dw 2.0
    Import.json-moduls
  • D. Add the JSON module dependency and add the validate-schema operation in the flow, configured to reference the schema
Answer: D

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Question #2

A Mule application uses API autodiscovery to access and enforce policies for a RESTful implementation.

  • A. Any of the APIkit generate implement flows
  • B. The name of the flow that has HTTP listener to receive all incoming RESTful operation requests
  • C. The name of the flow that has APlkit Console to receive all incoming RESTful operation requests.
  • D. Northing because flowRef is an optional attribute which can be passed runtime
Answer: B

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Question #3

Which type of cache invalidation does the Cache scope support without having to write any additional code?

  • A. Write-through invalidation
  • B. Time to live
  • C. White-behind invalidation
  • D. Notification-based invalidation
Answer: B

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Question #4

A heathcare customer wants to use hospital system data, which includes code that was developed using legacy tools and methods. The customer has created reusable Java libraries in order to read the data from the system.
What is the most effective way to develop an API retrieve the data from the hospital system?

  • A. Create the Java code in your project and invoice the data from the code
  • B. Refer to JAR files in the code
  • C. Install libraries in a local repository and refer to it in the pm.xml file
  • D. Include the libraries writes deploying the code into the runtime
Answer: C

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Question #5

Refer to the exhibit.

A developer generates the base scaffolding for an API in Anypoint Studio.
Which HTTP status code is returned while testing using the API Kit console if no values are entered in client-secret?

  • A. HTTP status code:500
  • B. HTTP status code:400
  • C. HTTP status code:200
  • D. HTTP status code:403
Answer: D

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