Salesforce Salesforce-MuleSoft-Developer-I Practice Exam Questions & Answers
5 Free Questions
· Last reviewed: August 26, 2026
· Prepared & Reviewed by the ValidExamDumps Editorial Team
Exam Facts
Salesforce Salesforce-MuleSoft-Developer-I Exam Details
Key details for this exam, checked against the published exam outline
235
Practice Questions (Our Bank)
120 minutes
Exam Duration
70%
Passing Score
USD 200
Exam Fee
- Exam Code
- Salesforce-MuleSoft-Developer-I
- Full Name
- Salesforce Certified MuleSoft Developer
- Issuing Body
- Salesforce
- Question Format (Our Bank)
- Multiple Choice
- Delivery
- Online proctored (Kryterion) or Pearson VUE test centre
- Eligibility
- No formal prerequisites. Salesforce recommends hands-on experience with Mule 4 projects and Anypoint Studio.
- Validity
- 3 years from the date of passing the exam. Maintain by completing annual release-specific Trailhead maintenance modules.
Practice Questions
Free Salesforce-MuleSoft-Developer-I Practice Questions
Each question shows the correct answer and an explanation of why it is right
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Every question and its answer is checked by our Salesforce-MuleSoft-Developer-I exam
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Refer to the exhibits.
A web client submits a request to below flow. What is the output at the end of the flow?
Correct Answer:
A
Explanation
String is the correct answer as XML is of an Object type String
Refer to the exhibit.
How should the WHERE clause be changed to set the city and state values from the configured input parameters?
A)
B)
C)
D)
Correct Answer:
A
Explanation
When using database connectors in Mule, the WHERE clause needs to reference input parameters correctly. Option A shows the proper syntax for binding configured parameters to SQL conditions. Options B, C, and D use incorrect parameter reference formats that would not resolve the input values or would cause syntax errors during query execution.
What valid RAML retrieves details on a specific by its orderld as a URL parameter?
A)
B)
C)
D)
Correct Answer:
A
Explanation
RAML syntax requires specific notation for URL parameters. Option A correctly uses curly braces around the parameter name in the resource path to indicate it as a URI parameter. Options B, C, and D use incorrect RAML syntax for path parameters, either missing braces, using query parameter notation, or placing the parameter incorrectly within the resource definition.
What is the default port used by Mule application debugger configuration in Anypoint Studio?
Correct Answer:
D
Explanation
By default, Debugger listens for incoming TCP connections on localhost port 6666 You can change this in a project's run configuration.
MuleSoft Doc Ref : https://docs.mulesoft.com/studio/7.5/visual-debugger-concept
Does a root element required when creating a XML response using Dataweave?
Correct Answer:
C
Explanation
Root element is always required while creating XML response in DataWeave transformation
Domain 1: Creating Application Networks
7%
Understand the Application Network architecture and API-led approach. Learn MuleSoft's recommended Operational Model (C4E) and how to consume RESTful web services defined in RAML.
Domain 2: Designing APIs
8%
Apply REST methods and resources to API design. Distinguish between query parameters and URI parameters in API definitions and responses.
Sample question from this domain above:
Q3
Domain 3: Accessing and Modifying Mule Events
10%
Use DataWeave expressions and processors to access and modify payloads, attributes, variables, and event enrichment. Predict outcomes of modifications using Mule 4 connector targets.
Sample question from this domain above:
Q1
Domain 4: Structuring Mule Applications
10%
Decide when to separate configuration and properties files in Mule applications. Pass events between flows and subflows using connectors and flow references.
Domain 5: Building API Implementation Interfaces
7%
Build API implementations manually from RAML specifications or using APIkit. Predict APIkit outcomes and implement correct responses based on API specifications.
Domain 6: Using Connectors
10%
Connect to databases, files, and FTP servers with correct processor syntax. Retrieve and combine data within flows using connectors.
Sample question from this domain above:
Q2
Domain 7: Processing Records
10%
Process individual records in collections using For Each scopes, batch scopes, and database listeners. Persist data between flow executions.
Domain 8: Transforming Data
10%
Convert between data types and output types using DataWeave. Apply core DataWeave functions and write transformations to coerce, format, order, and filter data. Define and reuse modules and functions.
Sample question from this domain above:
Q5
Domain 9: Routing Events
8%
Use choice routers with DataWeave conditions to route messages. Implement scatter and gather patterns and event validation.
Domain 10: Handling Errors
8%
Implement global error handlers, on-error continue and on-error propagate handlers, and try scopes. Map custom errors and combine multiple error handling strategies.
Domain 11: Debugging and Troubleshooting Mule Applications
5%
Identify root causes of errors when debugging Mule applications. Predict outcomes of debugging actions.
Sample question from this domain above:
Q4
Domain 12: Deploying and Managing APIs and Integrations
7%
Deploy applications to CloudHub. Manage APIs using separate proxies, auto-discovery, and API policies.
FAQ
Salesforce-MuleSoft-Developer-I Exam FAQ
Common questions about the exam itself
What background do I need before attempting the Salesforce Certified MuleSoft Developer exam?
No formal prerequisites exist, but Salesforce recommends you have hands-on experience working with Mule 4 projects in Anypoint Studio. Most successful candidates have built at least a few integrations or APIs before sitting the exam.
How hard is the Salesforce Certified MuleSoft Developer exam and what makes it challenging?
The exam tests scenario-based decisions rather than memorization, which requires practical understanding of when to use different features. Candidates most struggle with DataWeave transformations, specifically array manipulation and object creation, and with designing application networks for scalability and reusability.
Which objective area in the Salesforce Certified MuleSoft Developer exam is hardest and how should I approach it?
Transforming Data (DataWeave) is frequently reported as the most difficult area. Build this skill by practicing DataWeave functions thoroughly, focus on array manipulation and object creation, and work through real-world data transformation scenarios rather than theoretical examples.
How long should I realistically spend preparing for the Salesforce Certified MuleSoft Developer exam?
Preparation time varies based on your background, but most candidates benefit from at least 50 to 100 hours of study. This should include hands-on practice in Anypoint Studio, working through the objective areas in priority order, and timed practice question sets once you reach steady mock scores.
What happens on exam day for the Salesforce Certified MuleSoft Developer test?
You have 120 minutes to answer 60 multiple choice questions, giving about 2 minutes per question. The exam is delivered online via Kryterion proctoring or at a Pearson VUE test centre with live supervision.
What are the retake and rescheduling rules for the Salesforce Certified MuleSoft Developer exam?
You can retake the exam up to 5 times total with a 24-hour waiting period between attempts. The first retake costs USD 100 and subsequent retakes (attempts 3 to 5) cost USD 100 each. You may reschedule your exam through the Salesforce certification portal.
How long does the Salesforce Certified MuleSoft Developer certification stay valid and what does renewal require?
The certification remains valid for 3 years from the date you pass. To maintain it, you must complete a release-specific Trailhead maintenance module once per year during that 3-year period.
What job roles does the Salesforce Certified MuleSoft Developer certification prepare me for?
This certification prepares you for roles such as Integration Developer, API Developer, MuleSoft Developer, Systems Integration Engineer, and Enterprise Integration Architect. Certified developers earn salaries ranging from approximately USD 55,310 to USD 100,510 depending on experience and location.
How does the Salesforce Certified MuleSoft Developer exam fit within the MuleSoft certification track?
The Certified MuleSoft Developer I (Mule-Dev-201) is the foundational level certification in the MuleSoft track. Salesforce recommends completing the Certified MuleSoft Integration Foundations certification first if you are new to MuleSoft, then progressing to the Developer I exam, followed by advanced certifications like Developer II.
What is the passing score for the Salesforce Certified MuleSoft Developer exam?
You must achieve a minimum score of 70% to pass the exam. You will receive your results immediately after completing the test.
