MULESOFT CERTIFIED DEVELOPER -
LEVEL 1 (MULE 4). EXAM 2025/2026
QUESTIONS AND ANSWERS 100% PASS.
How would you debug Mule applications? - ANS Using breakpoints
What does to the attributes of a Mule event happen in a flow after an outbound HTTP Request
is made? - ANS Attributes are replaced with new attributes from the HTTP Request response.
The new RAML spec has been published to Anypoint Exchange with client credentials.What is
the next step to gain access to the API? - ANS Request access to the API in Anypoint
Exchange.
What is the difference between a subflow and a sync flow? - ANS Subflow has no error
handling of its own and sync flow does.
What is not an asset? - ANS Exchange
How to import Core (dw::Core) module into your DataWeave scripts? - ANS Not needed
What is the value of the stepVar variable after the processing of records in a Batch Job? -
ANS Null
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, What is the object type returned by the File List operation? - ANS Array of Mule event objects
Where are values of query parameters stored in the Mule event by the HTTP Listener? -
ANS Attributes
How can you call a flow from Dataweave? - ANS Look up function
DataWeave is tightly integrated with ____________. - ANS Mule runtime
In the Database On Table Row operation, what does the Watermark column enable the On Table
Rowoperation to do? - ANS To avoid duplicate processing of records in a database.
An API has been created in Design Center.What is the next step to make the API discoverable? -
ANS Publish the API to Anypoint Exchange. (Anypoint Exchange enables publishing, sharing,
and searching of APIs.)
What is the correct way to format the decimal 200.1234 as a string to two decimal places? -
ANS 200.1234 as String {format: ".0#"}
How is policy defined in terms of classloader of an API? - ANS Classloader isolation exists
between the application, the runtime and connectors, and policies.
According to Mulesoft, how are Modern APIs treated as? - ANS products
According to Semantic Versioning, which version would you change for incompatible API
changes? - ANS MAJOR
What is the use of DevKit in Mule 4? - ANS No use.
A Scatter-Gather processes a number of separate HTTP requests. Each request returns a Mule
event witha JSON payload.
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
LEVEL 1 (MULE 4). EXAM 2025/2026
QUESTIONS AND ANSWERS 100% PASS.
How would you debug Mule applications? - ANS Using breakpoints
What does to the attributes of a Mule event happen in a flow after an outbound HTTP Request
is made? - ANS Attributes are replaced with new attributes from the HTTP Request response.
The new RAML spec has been published to Anypoint Exchange with client credentials.What is
the next step to gain access to the API? - ANS Request access to the API in Anypoint
Exchange.
What is the difference between a subflow and a sync flow? - ANS Subflow has no error
handling of its own and sync flow does.
What is not an asset? - ANS Exchange
How to import Core (dw::Core) module into your DataWeave scripts? - ANS Not needed
What is the value of the stepVar variable after the processing of records in a Batch Job? -
ANS Null
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, What is the object type returned by the File List operation? - ANS Array of Mule event objects
Where are values of query parameters stored in the Mule event by the HTTP Listener? -
ANS Attributes
How can you call a flow from Dataweave? - ANS Look up function
DataWeave is tightly integrated with ____________. - ANS Mule runtime
In the Database On Table Row operation, what does the Watermark column enable the On Table
Rowoperation to do? - ANS To avoid duplicate processing of records in a database.
An API has been created in Design Center.What is the next step to make the API discoverable? -
ANS Publish the API to Anypoint Exchange. (Anypoint Exchange enables publishing, sharing,
and searching of APIs.)
What is the correct way to format the decimal 200.1234 as a string to two decimal places? -
ANS 200.1234 as String {format: ".0#"}
How is policy defined in terms of classloader of an API? - ANS Classloader isolation exists
between the application, the runtime and connectors, and policies.
According to Mulesoft, how are Modern APIs treated as? - ANS products
According to Semantic Versioning, which version would you change for incompatible API
changes? - ANS MAJOR
What is the use of DevKit in Mule 4? - ANS No use.
A Scatter-Gather processes a number of separate HTTP requests. Each request returns a Mule
event witha JSON payload.
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
