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| Certification Vendor: | MuleSoft |
|---|---|
| Exam Name: | MuleSoft Certified Developer - Level 1 (Mule 4) |
| Exam Number: | MCD-Level-1 |
| Exam Price: | $250 USD |
| Related Certifications: | MuleSoft Certified Developer - Level 2 MuleSoft Certified Integration Architect |
| Available Languages: | English, Spanish, Japanese |
| Exam Duration: | 120 minutes |
| Exam Format: | Scenario-based, Multiple-choice, Multiple-select |
| Real Exam Qty: | 60 |
| Passing Score: | 70% |
| Certificate Validity Period: | 2 years |
| Recommended Training: | Anypoint Platform Development: Fundamentals (Mule 4) MuleSoft Official Documentation |
| Exam Registration: | Official Registration Portal |
| Sample Questions: | ![]() |
| Exam Way: | Online proctored, closed-book exam |
| Pre Condition: | No mandatory prerequisites; recommended completion of Anypoint Platform Development: Fundamentals (Mule 4) course |
| Official Syllabus URL: | https://training.mulesoft.com/exam/mcd-level1 |
| Section | Weight | Objectives |
|---|---|---|
| Mule Application Development | 25% | - Connectors and transports - Flow construction and components - Properties and configuration |
| DataWeave Transformations | 20% | - Data format conversion - Payload and attribute manipulation - DataWeave syntax and expressions |
| Error Handling & Logging | 15% | - Custom error handlers - Logging and monitoring - Default error handling |
| API Design & Implementation | 15% | - RESTful interface implementation - RAML-based API definition - APIkit usage |
| Testing, Debugging & Deployment | 15% | - Deployment best practices - Application deployment to CloudHub - Debugging in Anypoint Studio |
| MuleSoft Fundamentals & Anypoint Platform | 10% | - Anypoint Platform architecture and components - API-led connectivity concepts - API lifecycle management |
No mandatory prerequisites; recommended completion of Anypoint Platform Development: Fundamentals (Mule 4) course Since requirements change over time, confirm the latest on the official MuleSoft exam page before scheduling.
The MCD-Level-1 exam is a MuleSoft certification exam validating the MuleSoft Certified Developer - Level 1 (Mule 4) syllabus shown above. It belongs to these credential paths: MuleSoft Certified Developer - Level 2, MuleSoft Certified Integration Architect. Candidates in 2026 prepare for it with Prep4sureGuide's 235 practice questions, available as a printable PDF, a Windows Desktop Test Engine, and an Online Test Engine — three versions of the same materials.
MuleSoft recommends these training resources for the MuleSoft Certified Developer - Level 1 (Mule 4) exam:
Follow the training with steady self-testing — the 235 practice questions from Prep4sureGuide help you apply theory and fill any gaps the training leaves.
The MuleSoft Certified Developer - Level 1 (Mule 4) exam requires 70% to pass, and registration costs $250 USD. A failed attempt means paying the same fee again — a readiness check with the Prep4sureGuide engines before booking is the cheaper option.
The MuleSoft Certified Developer - Level 1 (Mule 4) exam contains 60 to complete within 120 minutes. Timed simulation in the Prep4sureGuide Desktop Test Engine teaches that rhythm before exam day does.
Prep4sureGuide issues a full refund if you take the MuleSoft Certified Developer - Level 1 (Mule 4) exam within 60 days of purchase and do not pass. The policy does not apply if the exam is taken within 3 days of purchase, if the exam was never actually taken, or to free materials or expired orders, and the candidate name must match the payer name. Submit a scan of your enrollment slip and the official Score Report PDF within 2 days of the exam; claims are processed within 7 days. Alternatively, exchange for two free exam products of equal value and keep your original update service. Orders arrive by email within 1 minute — contact support if nothing arrives within 2 hours.
Three versions of the same study materials: a printable, expert-prepared PDF with free demo download and instant access; a Desktop Test Engine for Windows with customizable simulation and timed modes that works offline; and an Online Test Engine for any browser on Windows, Mac, Android, and iOS with test history and performance review. All 235 practice questions are identical across versions. Every purchase includes 365 days of free updates, a 50% renewal discount afterward, and unlimited computer installations.
The official MuleSoft Certified Developer - Level 1 (Mule 4) outline defines 6 domains. The leading three are MuleSoft Fundamentals & Anypoint Platform (10%), Error Handling & Logging (15%), and Mule Application Development (25%). The full list is in the topics section above, and Prep4sureGuide's 235 practice questions cover each one.
Online proctored, closed-book exam Register for the MuleSoft Certified Developer - Level 1 (Mule 4) exam through these official channels:
After booking, Prep4sureGuide delivers your practice questions within 1 minute — preparation starts the same day.
Refer to the exhibit.
The Database Select operation returns five rows from a database. What is logged by the Logger component?
Correct Answer: C 🗳️
Refer to the exhibit.
What should be changed to fix the 415 error?
Correct Answer: C 🗳️
Explanation: Only visible for Prep4sureGuide members. You can sign-up / login (it's free).
In the Database On Table Row operation, what does the Watermark column enable the On Table Row operation to do?
Correct Answer: D 🗳️
Explanation: Only visible for Prep4sureGuide members. You can sign-up / login (it's free).
What is the correct way to format the decimal 200.1234 as a string to two decimal places?
Correct Answer: B 🗳️
Explanation: Only visible for Prep4sureGuide members. You can sign-up / login (it's free).
Refer to the exhibits.

The my-app xml file contains an Error Handier scope named "global-error-handler" The Error Handler scope needs to be set to be the default error handler for every flow in the Mule application Where and how should the value "global-error-handler" be added in the Mule project so that the Error Handler scope is the default error handler of the Mule application?
Correct Answer: B 🗳️
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