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Salesforce Certified MuleSoft Developer (Mule-Dev-201)
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Salesforce Salesforce Certified MuleSoft Developer (Mule-Dev-201)

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Salesforce Certified MuleSoft Developer (Mule-Dev-201) Exam Questions

Exam number/code: Salesforce Certified MuleSoft Developer (Mule-Dev-201)

Release/Update Date: 03 May, 2026

Available Number of Questions: Maximum of 235 Questions

Exam Name: Salesforce Certified MuleSoft Developer

Exam Duration: 120 Minutes

Related Certification(s): Salesforce Developer, Salesforce MuleSoft Developer I Certifications

Salesforce Certified MuleSoft Developer (Mule-Dev-201) Exam Topics - You’ll Be Tested in Actual Exam

When you prepare for the Salesforce MuleSoft Developer I exam, think of your work as building reliable integrations that fit into a larger application network. You need to understand how APIs and integrations connect systems in a reusable way, and how connectors are selected and configured to talk to common services while handling authentication and data formats. A large part of the exam checks how you process records in a flow, such as reading collections, filtering, enriching, and managing performance with streaming friendly patterns. DataWeave is central, so focus on transforming data between JSON, XML, CSV, and Java objects, using mappings, functions, and type handling to produce clean outputs. Routing events matters too, including choosing the right router for conditions, scatter gather behavior, and controlling flow logic. You must handle errors with clear strategies, using error types, scopes, retries, and meaningful responses. Debugging and troubleshooting skills include reading logs, using breakpoints, inspecting payload and attributes, and isolating failures. Deployment and management covers packaging, configuration properties, environments, and keeping APIs stable. API design and building implementation interfaces require understanding contracts, resources, methods, and how an implementation honors the spec. Finally, you should be comfortable accessing and modifying Mule events and structuring applications with modular flows so solutions stay maintainable and predictable from start to finish.

Salesforce Certified MuleSoft Developer (Mule-Dev-201) Exam Short Quiz

Attempt this Salesforce Certified MuleSoft Developer (Mule-Dev-201) exam quiz to self-assess your preparation for the actual Salesforce Certified MuleSoft Developer exam. CertBoosters also provides premium Salesforce Certified MuleSoft Developer (Mule-Dev-201) exam questions to pass the Salesforce Certified MuleSoft Developer exam in the shortest possible time. Be sure to try our free practice exam software for the Salesforce Certified MuleSoft Developer (Mule-Dev-201) exam.

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Salesforce Salesforce Certified MuleSoft Developer (Mule-Dev-201)
Q1:

What DataWeave expression transforms the array a to the XML output?

A 1. 1. trains:
2. 2. {(
3. 3. a map ((engId, index) ->
4. 4. train: {
5. 5. TrainNumber: engId
6. 6.
7. 7. }
8. 8. )
9. 9. )}
B 1. 1. trains:
2. 2. a map ((engId, index) ->
3. 3. train: {
4. 4. TrainNumber: engId
5. 5.
6. 6. }
7. 7. )
C 1. 1. {(
2. 2. trains:
3. 3. a map ((engId, index) ->
4. 4. train: {
5. 5. TrainNumber: engId
6. 6.
7. 7. }
8. 8. )
9. )}
D 1. 1. {
2. 2. trains:
3. 3. a map ((engId, index) ->
4. 4. train: {
5. 5. TrainNumber: engId
6. 6.
7. 7. }
8. 8. )
9. }
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