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Mulesoft MCPA-Level-1 Exam Questions

151 Questions


Updation Date : 3-Nov-2025



Mulesoft MCPA-Level-1 exam questions feature realistic, exam-like questions that cover all key topics with detailed explanations. You’ll identify your strengths and weaknesses, allowing you to focus your study efforts effectively. By practicing with our MCPA-Level-1 practice test, you’ll gain the knowledge, speed, and confidence needed to pass the Mulesoft exam on your first attempt.

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A Platform Architect inherits a legacy monolithic SOAP-based web service that performs a number of tasks, including showing all policies belonging to a client. The service connects to two back-end systems — a life-insurance administration system and a general-insurance administration system — and then queries for insurance policy information within each system, aggregates the results, and presents a SOAP-based response to a user interface (UI). The architect wants to break up the monolithic web service to follow API-led conventions. Which part of the service should be put into the process layer?


A. Combining the insurance policy information from the administration systems


B. Presenting the SOAP-based response to the UI


C. Authenticating and maintaining connections to each of the back-end administration systems


D. Querying the data from the administration systems





A.   Combining the insurance policy information from the administration systems

Explanation:
In the API-led connectivity approach, each layer (System, Process, and Experience) has a distinct purpose:

  • System APIs: These APIs connect directly to backend systems to expose and unlock data in a standardized way.
  • Process APIs: These are responsible for orchestrating and processing data across different systems, combining information where needed.
  • Experience APIs: These are designed for specific user interfaces or applications, often transforming data formats to fit the needs of each consumer application.
Why Option A is Correct:
  • Process APIs are designed to combine data from multiple systems, which aligns with the function of aggregating policy information from both the life and general insurance systems. This aggregation logic would ideally reside in the Process layer, separating data retrieval from data orchestration.
  • Moving this functionality to the Process layer enables reusability and modularity, as other Experience APIs or services could also leverage the combined policy data if needed.
Explanation of Incorrect Options:
  • Option B (Presenting the SOAP-based response) would be managed by the Experience layer, as this layer adapts data formats for specific interfaces.
  • Option C (Authenticating and maintaining backend connections) would typically be handled within the System layer, where backend integration and security handling occurs.
  • Option D (Querying data) is the function of System APIs, which access the backend systems directly and expose the raw data without additional processing.

An API implementation is updated. When must the RAML definition of the API also be updated?


A.

When the API implementation changes the structure of the request or response messages


B.

When the API implementation changes from interacting with a legacy backend system deployed on-premises to a modern, cloud-based (SaaS) system


C.

When the API implementation is migrated from an older to a newer version of the Mule runtime


D.

When the API implementation is optimized to improve its average response time





A.   

When the API implementation changes the structure of the request or response messages



Explanation: Explanation
Correct Answer: When the API implementation changes the structure of the request or
response messages
*****************************************
>> RAML definition usually needs to be touched only when there are changes in the
request/response schemas or in any traits on API.
>> It need not be modified for any internal changes in API implementation like performance
tuning, backend system migrations etc

What is most likely NOT a characteristic of an integration test for a REST API
implementation?


A.

The test needs all source and/or target systems configured and accessible


B.

The test runs immediately after the Mule application has been compiled and packaged


C.

The test is triggered by an external HTTP request


D.

The test prepares a known request payload and validates the response payload





B.   

The test runs immediately after the Mule application has been compiled and packaged



Explanation: Explanation
Correct Answer: The test runs immediately after the Mule application has been compiled
and packaged
*****************************************
>> Integration tests are the last layer of tests we need to add to be fully covered.
>> These tests actually run against Mule running with your full configuration in place and are tested from external source as they work in PROD.
>> These tests exercise the application as a whole with actual transports enabled. So,
external systems are affected when these tests run.
So, these tests do NOT run immediately after the Mule application has been compiled and
packaged.
FYI... Unit Tests are the one that run immediately after the Mule application has been
compiled and packaged.
Reference: https://docs.mulesoft.com/mule-runtime/3.9/testing-strategies#integrationtesting

What is a best practice when building System APIs?


A.

Document the API using an easily consumable asset like a RAML definition


B.

Model all API resources and methods to closely mimic the operations of the backend system


C.

Build an Enterprise Data Model (Canonical Data Model) for each backend system and apply it to System APIs


D.

Expose to API clients all technical details of the API implementation's interaction wifch
the backend system





B.   

Model all API resources and methods to closely mimic the operations of the backend system



Explanation: Explanation
Correct Answer: Model all API resources and methods to closely mimic the operations of
the backend system.
*****************************************
>> There are NO fixed and straight best practices while opting data models for APIs. They
are completly contextual and depends on number of factors. Based upon those factors, an
enterprise can choose if they have to go with Enterprise Canonical Data Model or Bounded
Context Model etc.
>> One should NEVER expose the technical details of API implementation to their API
clients. Only the API interface/ RAML is exposed to API clients.
>> It is true that the RAML definitions of APIs should be as detailed as possible and should
reflect most of the documentation. However, just that is NOT enough to call your API as
best documented API. There should be even more documentation on Anypoint Exchange
with API Notebooks etc. to make and create a developer friendly API and repository..
>> The best practice always when creating System APIs is to create their API interfaces by
modeling their resources and methods to closely reflect the operations and functionalities
of that backend system.

Mule applications that implement a number of REST APIs are deployed to their own subnet
that is inaccessible from outside the organization.
External business-partners need to access these APIs, which are only allowed to be
invoked from a separate subnet dedicated to partners - called Partner-subnet. This subnet
is accessible from the public internet, which allows these external partners to reach it.
Anypoint Platform and Mule runtimes are already deployed in Partner-subnet. These Mule
runtimes can already access the APIs.
What is the most resource-efficient solution to comply with these requirements, while
having the least impact on other applications that are currently using the APIs?


A.

Implement (or generate) an API proxy Mule application for each of the APIs, then deploy the API proxies to the Mule runtimes


B.

Redeploy the API implementations to the same servers running the Mule runtimes


C.

Add an additional endpoint to each API for partner-enablement consumption


D.

Duplicate the APIs as Mule applications, then deploy them to the Mule runtimes





A.   

Implement (or generate) an API proxy Mule application for each of the APIs, then deploy the API proxies to the Mule runtimes



An API implementation is deployed to CloudHub.
What conditions can be alerted on using the default Anypoint Platform functionality, where
the alert conditions depend on the end-to-end request processing of the API
implementation?


A.

When the API is invoked by an unrecognized API client


B.

When a particular API client invokes the API too often within a given time period


C.

When the response time of API invocations exceeds a threshold


D.

When the API receives a very high number of API invocations





C.   

When the response time of API invocations exceeds a threshold



Explanation: Explanation
Correct Answer: When the response time of API invocations exceeds a threshold
*****************************************
>> Alerts can be setup for all the given options using the default Anypoint Platform
functionality
>> However, the question insists on an alert whose conditions depend on the end-to-end
request processing of the API implementation.
>> Alert w.r.t "Response Times" is the only one which requires end-to-end request
processing of API implementation in order to determine if the threshold is exceeded or not.
Reference: https://docs.mulesoft.com/api-manager/2.x/using-api-alerts

Select the correct Owner-Layer combinations from below options


A.

1. App Developers owns and focuses on Experience Layer APIs
2. Central IT owns and focuses on Process Layer APIs
3. LOB IT owns and focuses on System Layer APIs


B.

1. Central IT owns and focuses on Experience Layer APIs
2. LOB IT owns and focuses on Process Layer APIs
3. App Developers owns and focuses on System Layer APIs


C.

1. App Developers owns and focuses on Experience Layer APIs
2. LOB IT owns and focuses on Process Layer APIs
3. Central IT owns and focuses on System Layer APIs





C.   

1. App Developers owns and focuses on Experience Layer APIs
2. LOB IT owns and focuses on Process Layer APIs
3. Central IT owns and focuses on System Layer APIs



Explanation: Explanation
Correct Answer:
1. App Developers owns and focuses on Experience Layer APIs
2. LOB IT owns and focuses on Process Layer APIs
3. Central IT owns and focuses on System Layer APIs

References:
https://blogs.mulesoft.com/biz/api/experience-api-ownership/
https://blogs.mulesoft.com/biz/api/process-api-ownership/
https://blogs.mulesoft.com/biz/api/system-api-ownership

The application network is recomposable: it is built for change because it "bends but does
not break"


A.

TRUE


B.

FALSE





A.   

TRUE



Explanation: *****************************************
>> Application Network is a disposable architecture.
>> Which means, it can be altered without disturbing entire architecture and its
components.
>> It bends as per requirements or design changes but does not break
Reference: https://www.mulesoft.com/resources/api/what-is-an-application-network


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