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MuleSoft MCD-LEVEL1-DELTA Exam
MuleSoft Certified Developer - Level 1 (Mule 4) DELTA (Page 2 )

Updated On: 12-Jan-2026
Page 2 of 22
PDF with 101 Questions

What module and operation will throw an error if a Mule event's payload is not a number?

  1. Validation module's Is number operation
  2. Filter module's Is number operation
  3. None of these
  4. Validation module's Is not a number operation

Answer(s): A



Refer to the exhibit.



What is the correct syntax to add an employee ID as a URI parameter in an HTTP Listener path?

  1. (employeelD)
  2. ${emp!oyeelD}
  3. {employeelD}
  4. # [employeelD]

Answer(s): C



Refer to the exhibits.



The orders.csv file is read, then processed to look up the orders in a database. The Mule application is debugged in Any point Studio and stops at the breakpoint.

What is the payload shown in the debugger at this breakpoint?

  1. "none"
  2. The entire CSV file
  3. The database response
  4. 100

Answer(s): D



Refer to the exhibit.

The error occurs when a project is run in Anypoint Studio. The project, which has a dependency that is not in the MuleSoft Maven repository, was created and successfully run on a different computer.

What is the next step to fix the error to get the project to run successfully?

  1. Edit the dependency in the Mule project's pom.xml file
  2. Install the dependency to the computer's local Maven repository
  3. Deploy the dependency to MuleSoft's Maven repository
  4. Add the dependency to the MULE_HOME/bin folder

Answer(s): B



What payload is returned by a Database SELECT operation that does not match any rows in the database?

  1. false
  2. null
  3. Exception
  4. Empty Array

Answer(s): D



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