Mulesoft Certified Developer - Level 1
(Mule 4) Complete Questions And
Answers 2025
How would you debug Mule applications? CORRECT ANSWERS Using breakpoints
What does to the attributes of a Mule event happen in a flow after an outbound HTTP
Request is made? CORRECT ANSWERS 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? CORRECT ANSWERS
Request access to the API in Anypoint Exchange.
What is the difference between a subflow and a sync flow? CORRECT ANSWERS
Subflow has no error handling of its own and sync flow does.
What is not an asset? CORRECT ANSWERS Exchange
How to import Core (dw::Core) module into your DataWeave scripts? CORRECT
ANSWERS Not needed
What is the value of the stepVar variable after the processing of records in a Batch Job?
CORRECT ANSWERS Null
What is the object type returned by the File List operation? CORRECT ANSWERS
Array of Mule event objects
Where are values of query parameters stored in the Mule event by the HTTP Listener?
CORRECT ANSWERS Attributes
How can you call a flow from Dataweave? CORRECT ANSWERS Look up function
DataWeave is tightly integrated with ____________. CORRECT ANSWERS Mule
runtime
In the Database On Table Row operation, what does the Watermark column enable the
On Table Rowoperation to do? CORRECT ANSWERS 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? CORRECT ANSWERS 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? CORRECT ANSWERS 200.1234 as String {format: ".0#"}
How is policy defined in terms of classloader of an API? CORRECT ANSWERS
Classloader isolation exists between the application, the runtime and connectors, and
policies.
According to Mulesoft, how are Modern APIs treated as? CORRECT ANSWERS
products
According to Semantic Versioning, which version would you change for incompatible
API changes? CORRECT ANSWERS MAJOR
What is the use of DevKit in Mule 4? CORRECT ANSWERS No use.
A Scatter-Gather processes a number of separate HTTP requests. Each request returns
a Mule event witha JSON payload.
What is the final output of the Scatter-Gather? CORRECT ANSWERS An Object
containing all Mule event Objects.
What are the latest specification of RAML available? CORRECT ANSWERS 1
http://dev.acme.com/api/patients?year=2016
What should this endpoint return? CORRECT ANSWERS Patients from year 2016
According to MuleSoft, what is the Center for Enablement's role in the new IT operating
model? CORRECT ANSWERS Creates and manages discoverable assets to be
consumed by line of business developers.
Which one of them is NOT a flow in Mule? CORRECT ANSWERS async sub flow
How are multiple conditions used in a Choice router to route events? CORRECT
ANSWERS To find the FIRST true condition, then distribute the event to the ONE
matched route.
What asset can NOT be created by using Design Center? CORRECT ANSWERS API
Portals
A flow has a JMS Publish consume operation followed by a JMS Publish operation.
Both of theseoperations have the default configurations.
Which operation is asynchronous and which one is synchronous? CORRECT
ANSWERS Publish consume: Synchronous. Publish: Asynchronous.
(Mule 4) Complete Questions And
Answers 2025
How would you debug Mule applications? CORRECT ANSWERS Using breakpoints
What does to the attributes of a Mule event happen in a flow after an outbound HTTP
Request is made? CORRECT ANSWERS 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? CORRECT ANSWERS
Request access to the API in Anypoint Exchange.
What is the difference between a subflow and a sync flow? CORRECT ANSWERS
Subflow has no error handling of its own and sync flow does.
What is not an asset? CORRECT ANSWERS Exchange
How to import Core (dw::Core) module into your DataWeave scripts? CORRECT
ANSWERS Not needed
What is the value of the stepVar variable after the processing of records in a Batch Job?
CORRECT ANSWERS Null
What is the object type returned by the File List operation? CORRECT ANSWERS
Array of Mule event objects
Where are values of query parameters stored in the Mule event by the HTTP Listener?
CORRECT ANSWERS Attributes
How can you call a flow from Dataweave? CORRECT ANSWERS Look up function
DataWeave is tightly integrated with ____________. CORRECT ANSWERS Mule
runtime
In the Database On Table Row operation, what does the Watermark column enable the
On Table Rowoperation to do? CORRECT ANSWERS 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? CORRECT ANSWERS 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? CORRECT ANSWERS 200.1234 as String {format: ".0#"}
How is policy defined in terms of classloader of an API? CORRECT ANSWERS
Classloader isolation exists between the application, the runtime and connectors, and
policies.
According to Mulesoft, how are Modern APIs treated as? CORRECT ANSWERS
products
According to Semantic Versioning, which version would you change for incompatible
API changes? CORRECT ANSWERS MAJOR
What is the use of DevKit in Mule 4? CORRECT ANSWERS No use.
A Scatter-Gather processes a number of separate HTTP requests. Each request returns
a Mule event witha JSON payload.
What is the final output of the Scatter-Gather? CORRECT ANSWERS An Object
containing all Mule event Objects.
What are the latest specification of RAML available? CORRECT ANSWERS 1
http://dev.acme.com/api/patients?year=2016
What should this endpoint return? CORRECT ANSWERS Patients from year 2016
According to MuleSoft, what is the Center for Enablement's role in the new IT operating
model? CORRECT ANSWERS Creates and manages discoverable assets to be
consumed by line of business developers.
Which one of them is NOT a flow in Mule? CORRECT ANSWERS async sub flow
How are multiple conditions used in a Choice router to route events? CORRECT
ANSWERS To find the FIRST true condition, then distribute the event to the ONE
matched route.
What asset can NOT be created by using Design Center? CORRECT ANSWERS API
Portals
A flow has a JMS Publish consume operation followed by a JMS Publish operation.
Both of theseoperations have the default configurations.
Which operation is asynchronous and which one is synchronous? CORRECT
ANSWERS Publish consume: Synchronous. Publish: Asynchronous.
