Certified MuleSoft Developer I

Here you have the best Salesforce Certified MuleSoft Developer I practice exam questions

  • You have 60 total questions across 12 pages (5 per page)
  • These questions were last updated on February 6, 2026
  • This site is not affiliated with or endorsed by Salesforce.
Question 1 of 60
Refer to the exhibits. The Mule application does NOT define any global error handlers.
The Validation component in the private flow throws an error.
What response message is returned to a web client request to the main flow's HTTP Listener?
Exam Certified MuleSoft Developer I: Question 1 - Image 1
Suggested Answer: D

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Question 2 of 60
A function named toUpper needs to be defined that accepts a string named userName and returns the string in uppercase.
What is the correct DataWeave code to define the toUpper function?
Suggested Answer: B

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Question 3 of 60
Northern Trail Outfitters (NTO) has an API to manage departments, with each department identified by a unique deptId. The API was built with RAML according to MuleSoft best practices.
What is valid RAML to specify a method to update the details for a specific department?
Suggested Answer: B

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Question 4 of 60
Refer to the exhibits. A Mule application polls a database table.
This error is logged when the Mule application is run.
What should be changed in the Database connector configuration to resolve this error?
Exam Certified MuleSoft Developer I: Question 4 - Image 1
Suggested Answer: A

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Question 5 of 60
Refer to the exhibits. BetterBooks has defined this Book data type and Book example to be used in APIs.
What is valid RAML for an API that uses this Book data type and Book example?
Exam Certified MuleSoft Developer I: Question 5 - Image 1
Suggested Answer: B

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About the Salesforce Certified MuleSoft Developer I Certification Exam

About the Exam

The Salesforce Certified MuleSoft Developer I (Certified MuleSoft Developer I) validates your knowledge and skills. Passing demonstrates proficiency and can boost your career prospects in the field.

How to Prepare

Work through all 60 practice questions across 12 pages. Focus on understanding the reasoning behind each answer rather than memorizing responses to be ready for any variation on the real exam.

Why Practice Exams?

Practice exams help you familiarize yourself with the question format, manage your time, and reduce anxiety on the test day. Our Certified MuleSoft Developer I questions are regularly updated to reflect the latest exam objectives.