Salesforce Certified MuleSoft Developer: Mule-Dev-201 Exam
"Salesforce Certified MuleSoft Developer", also known as Mule-Dev-201 exam, is a Salesforce Certification. With the complete collection of questions and answers, ExamcollectionPass has assembled to take you through 237 Q&As to your Mule-Dev-201 Exam preparation. In the Mule-Dev-201 exam resources, you will cover every field and category in Salesforce MuleSoft Certification helping to ready you for your successful Salesforce Certification.
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- Exam Code: Mule-Dev-201
- Exam Name: Salesforce Certified MuleSoft Developer
- Certification Provider: Salesforce
- Corresponding Certification: Salesforce MuleSoft
- Updated: Sep 17, 2026
- No. of Questions: 237 Questions & Answers with Testing Engine
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Salesforce Mule-Dev-201 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Deploying and Managing Applications | 10% | - Explain deployment models - Deploy to CloudHub and on-premises - Monitor and manage applications |
| Topic 2: Creating Application Networks | 7% | - Identify application network concepts - Explain API-led connectivity principles - Describe Anypoint Platform components |
| Topic 3: Building API Implementations | 10% | - Implement APIs from specifications - Use connectors to integrate systems - Implement routing and transformation logic |
| Topic 4: Testing and Debugging | 10% | - Use mocking and test doubles - Write unit tests with MUnit - Debug applications using Anypoint Studio |
| Topic 5: Data Transformation with DataWeave | 10% | - Write expressions and functions - Handle different data formats - Transform complex data structures |
| Topic 6: Structuring Mule Applications | 10% | - Manage error handling and scopes - Use flows, subflows and flow references - Organize configurations and properties |
| Topic 7: Accessing and Modifying Mule Events | 10% | - Use DataWeave for transformation - Access and modify payload, attributes and variables - Enrich events using connectors |
| Topic 8: Error Handling and Transactions | 8% | - Configure error handlers - Implement transaction management - Handle retries and dead-letter queues |
| Topic 9: Security and Governance | 7% | - Enforce governance standards - Apply security policies - Manage access and authentication |
| Topic 10: Designing APIs | 8% | - Define API specifications with RAML - Use REST API methods and resources - Define parameters, responses and data types |
Salesforce Certified MuleSoft Developer Sample Questions:
Refer to the exhibit.
What is the correct DataWeave expression for the Set Payload transformer to call the createCustomerObject flow with values for the first and last names of a new customer?
- A. lookupC createCustomerObJect( "Alice", "Green- ) )
- B. createCustomerObject( { first: "Alice", last: "Green" > )
- C. lookupf "createCustomerObject", { first: "Alice", last: "Green" > )
- D. createCustomerObject( "Alice", "Green")
Correct Answer: C 🗳️
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Refer to the exhibits.
The Validation component in the private flow throws an error. What response message is returnedto a client request to the main flow's HTTP Listener?
- A. Validation Error
- B. Error - private flow
- C. Success - main flow
- D. Error - main flow
Correct Answer: D 🗳️
Explanation: Only visible for ExamcollectionPass members. You can sign-up / login (it's free).
Refer to the exhibit.
What expression correctly specifies inputparameters to pass the city and state values to the SQL query?
- A.
- B.
- C.
- D.
Correct Answer: C 🗳️
Explanation: Only visible for ExamcollectionPass members. You can sign-up / login (it's free).
What is the output of Dataweave Mapoperator?
- A. Map
- B. Array
- C. Object
- D. String
Correct Answer: B 🗳️
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Refer to the exhibits.
Larger image
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The Mule application configures and uses two HTTP Listener global configuration elements.
Mule application is run in Anypoint Studio.
If the mule application starts correctly, what URI and port numbers can receive web client requests? If the mule applications fails to start , what is the reason for the failure?
- A. The mule application start successfullyWeb client requests can be received at URI on port 2222 and on port 3333.
- B. The mule application fails to startThere is URL path conflict because both HTTP Listeners are configured with same path
- C. The mule applicationstart successfullyWeb client requests can only be received at URI on port 2222 but not on port 3333
- D. The mule application fails to start because of the port binding conflict as HTTP request also use same port i.e. 3333
Correct Answer: A 🗳️
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