MCD-Level 2

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The dumps for MCD-Level 2 exam was last updated on May 31,2025 .

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Question#1

A Mule application for processing orders must log the order ID for every log message output.
What is a best practice to enrich every log message with the order ID?

A. Use flow variables within every logger processor to log the order ID

B. Set a flow variable and edit the log4/2.xml file to output the variable as part of the message pattern

C. Create a custom XML SDK component to wrap the logger processor and automatically add the order ID within the connector

D. Use the Tracing module to set logging variables with a Mapped Diagnostic Context

Explanation:
To enrich every log message with the order ID, the developer should use the Tracing module to set logging variables with a Mapped Diagnostic Context (MDC). The Tracing module allows adding custom key-value pairs to log messages using MDC variables. The developer can use Set Logging Variables operation to set the order ID as an MDC variable and then use it in any logger processor within the same thread or event.
References: https://docs.mulesoft.com/tracing-module/1.0/tracing-module-reference#set-logging-variables

Question#2

In a Mule project, Flow-1 contains a flow-ref to Flow-2 depends on data from Flow-1 to execute successfully.
Which action ensures the test suites and test cases written for Flow-1 and Flow-2 will execute successfully?

A. Chain together the test suites and test cases for Flow-1 and Flow-2

B. Use ‘’Set Event to pass the input that is needed, and keep the test cases for Flow-1 and Flow-2 independent

C. Use ‘’Before Test Case’’ To collect data from Flow-1 test cases before running Flow-2 test cases

D. Use ‘After Test Case’ to produce the data needed from Flow-1 test cases to pass to Flow-2 test cases

Explanation:
To ensure the test suites and test cases written for Flow-1 and Flow-2 will execute successfully, the developer should use a Set Event processor to pass the input that is needed by Flow-2, and keep the test cases for Flow-1 and Flow-2 independent. This way, the developer can isolate the testing of each flow and avoid coupling them together.
References: https://docs.mulesoft.com/munit/2.3/munit-test-flow

Question#3

A mule application exposes and API for creating payments. An Operations team wants to ensure that the Payment API is up and running at all times in production.
Which approach should be used to test that the payment API is working in production?

A. Create a health check endpoint that listens on a separate port and uses a separate HTTP Listener configuration from the API

B. Configure the application to send health data to an external system

C. Create a health check endpoint that reuses the same port number and HTTP Listener configuration as the API itself

D. Monitor the Payment API directly sending real customer payment data

Explanation:
To test that the payment API is working in production, the developer should create a health check endpoint that listens on a separate port and uses a separate HTTP Listener configuration from the API. This way, the developer can isolate the health check endpoint from the API traffic and avoid affecting the performance or availability of the API. The health check endpoint should return a simple response that indicates the status of the API, such as OK or ERROR.
References: https://docs.mulesoft.com/api-functional-monitoring/afm-create-monitor#create-a-monitor

Question#4

A developer has created the first version of an API designed for business partners to work commodity prices.
What should developer do to allow more than one major version of the same API to be exposed by the implementation?

A. In Design Center, open the RAML and modify each operation to include the major version number

B. In Anypoint Studio, generate scaffolding from the RAML, and the modify the <http:listerner> in the generated flows to include a parameter to replace the version number

C. In Design Center, open the RAML and modify baseUn to include a variable that indicates the version number

D. In Anypoint Studio, generate scaffolding from the RAML, and then modify the flow names generated by APIKit to include a variable with the major version number

Explanation:
To allow more than one major version of the same API to be exposed by the implementation, the developer should modify the baseUri property in the RAML file to include a variable that indicates the version number. The baseUri property defines the base URL of the API and can include variables that are replaced with actual values when mocking or deploying the API. By using a variable for the version number, the developer can expose different versions of the API using different base URLs and avoid conflicts or confusion.
References:
https://docs.mulesoft.com/api-designer/design-modify-raml-specs#baseuri https://docs.mulesoft.com/api-manager/2.x/api-versioning

Question#5

Refer to the exhibits.
Bio info System API is implemented and published to Anypoint Exchange. A developer wants to invoke this API using its REST Connector.
What should be added to the POM?
A)

B)

C)

D)

E)

A. Option A

B. Option B

C. Option C

D. Option D

E. Option E

Explanation:
To invoke Bioinfo System API using its REST Connector, option E should be added to the pom.xml file. This option adds a dependency for Bioinfo System API REST Connector with its group ID, artifact ID, version, classifier, and type. The classifier specifies that it is a REST Connector (raml-client), and the type specifies that it is a Mule plugin (mule-plugin).
References: https://docs.mulesoft.com/apikit/4.x/apikit-4-generate-from-rest-api-task#add-the-api-dependency-to-the-pom-fi

Exam Code: MCD-Level 2 Q & A: 60 Q&As Updated: May 31,2025

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Exam Code: MCD-Level 2
Q & A: 60 Q&As
Updated: May 31,2025

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