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Salesforce Certified MuleSoft Developer : Mule-Dev-201
- Exam Code: Mule-Dev-201
- Exam Name: Salesforce Certified MuleSoft Developer
- Updated: Oct 15, 2026
- Q & A: 237 Questions and Answers
About Salesforce Mule-Dev-201 Exam
Every demo at Prep4away is free of charge, including the one for the Salesforce Certified MuleSoft Developer product line. In 2026, you can preview the Mule-Dev-201 exam practice content, test the format on your own device, and only then decide whether the full 237 question set fits your study style.
Salesforce Mule-Dev-201 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Security and Policies | - API security policies (OAuth, JWT, etc.) - Secure configuration and credentials management |
| Deployment and Operations | - Monitoring and logging - Deployment strategies (CloudHub, on-prem) |
| Mule Application Development | - Flow design and message processing - Connectors and modules usage |
| API-led Connectivity | - API reusability and governance concepts - API layering approach (System, Process, Experience APIs) |
| DataWeave Transformations | - DataWeave syntax and functions - Data transformation and mapping strategies |
| Anypoint Platform Fundamentals | - Anypoint Platform components overview - Anypoint Studio usage and project structure |
| Error Handling and Debugging | - Error types and handling strategies - Debugging Mule applications |
Frequently Asked Questions About the Mule-Dev-201 Exam
The Mule-Dev-201 exam is the official test for the Salesforce Certified MuleSoft Developer certification from Salesforce. It measures whether you can apply the skills described in the exam objectives to realistic scenarios. Earning the credential shows employers that your knowledge has been checked against a recognized industry standard, which is why many candidates treat it as essential armor in a competitive job market.
The passing score for the Mule-Dev-201 exam is 70%, and the exam fee is $200 USD. Because retakes mean paying the fee again, most candidates prefer to prepare thoroughly first — working through practice questions with expert-verified answers until the exam format feels familiar is a common approach.
Prep4away focuses on doing a few things well: practice questions aligned with the real Mule-Dev-201 exam format, answers verified by experienced experts, free updates for 365 days after purchase, and a support team available around the clock. You can check all of this yourself before buying, because every product page offers a free demo that you can download and even print. There is no pressure and no obligation — the demo exists so you can make up your own mind.
You can register for the Mule-Dev-201 exam through the official channels below:
Registration slots can fill quickly during busy periods, so booking early is recommended once your preparation is on track.
According to the official outline, the main domains of the Mule-Dev-201 exam include:
- DataWeave Transformations ()
- Anypoint Platform Fundamentals ()
- Mule Application Development ()
The 237 practice questions for the Salesforce Certified MuleSoft Developer exam at Prep4away are organized around these objective areas, so your review time maps directly onto what the exam actually tests.
The Mule-Dev-201 exam contains 60 questions and allows 120 minutes minutes to complete them. That works out to limited time per question, so practicing under similar time pressure beforehand helps you pace yourself on the real day.
Salesforce lists the following training options for candidates preparing for the Mule-Dev-201 exam:
Many candidates combine official training with self-paced practice questions so they can both learn the material and rehearse the exam format.
Recommended 6+ months experience with MuleSoft Anypoint Platform and integration development concepts
Yes. Prep4away provides a free demo for the Mule-Dev-201 exam product, and all demos on the site are free of charge. The PDF demo can be downloaded to your device and printed out if you prefer reviewing on paper. Trying the demo first is the easiest way to confirm that the question style, difficulty, and layout match what you need for the Salesforce Certified MuleSoft Developer exam — no payment and no commitment required.
Salesforce Certified MuleSoft Developer Sample Questions:
Question #1
Refer to the exhibit.
What is the output payload in the On Complete phase
- A. The original payload: [1,2,31
- B. The records processed by thelast batch step: [StepTwol, StepTwo2, StepTwo3]
- C. summary statistics with NO record data
- D. The records processed by all batch steps: [StepTwostepOnel, stepTwostepOne2, StepTwoStepOne3]
Correct Answer: C 🗳️
Explanation: Only visible for Prep4away members. You can sign-up / login (it's free).
Question #2
Refer to the exhibits.
The Set Payload transformer's value is set to {'year': '2020'}.
What message value should be added to the Logger component to output the message 'The year is 2020', withouthardcoding 2020?
- A. '#[The year is $(pay load .year)]*
- B. '#[The year is " + paytoad.year]'
- C. #["The year is "++ payload.year].
- D. The year is #[payload.year]'
Correct Answer: C 🗳️
Question #3
An API instance of type API endpoint with API proxy is created in API manager using an API specification from Anypoint Exchange. The API instance is also configuredwith an API proxy that is deployed and running in CloudHub.
An SLA- based policy is enabled in API manager for this API instance.
Where can an external API consumer obtain a valid client ID and client secret to successfully send requests to the API proxy?
- A. In Runtime Manager, from the properties tab of the deployed approved API proxy
- B. In Anypoint Studio, from components generated by Rest Connect for API specification
- C. In Anypoint Studio, from components generated by APIkit for the API specification
- D. In the organization's public API portal in Anypoint Exchange, from an approved client application for the API proxy
Correct Answer: D 🗳️
Explanation: Only visible for Prep4away members. You can sign-up / login (it's free).
Question #4
Refer to the exhibits.
The input array of strings is processed by the batch job that processes, filters, and aggregates the values. What is the last message logged by the Logger component after the batch job completes processing?
- A. [ ["A", "C", "D" ], ["E"] ]
- B. [''D", "E"]
- C. [''E'']
- D. [ "A", "C, "D", "E" ]
Correct Answer: C 🗳️
Explanation: Only visible for Prep4away members. You can sign-up / login (it's free).
Question #5
A Mule project contains a DataWeave module called MyModule.dwl that defines a function named formatString. The module is located in the project's src/main/resources/modules folder.
What is the correct way in DataWeave code to import MyModule using a wildcard and then call the module's formatString function?
- A.
- B.
- C.
- D.
Correct Answer: C 🗳️
Viewing page 1 out of 48 pages.
Viewing questions 1-5 out of 237 questions.
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