Correct Answer: C

The Cache scope supports time to live (TTL) as a cache invalidation strategy without having to write any additional code. TTL specifies how long the cached response is valid before it expires and needs to be refreshed. The Cache scope also supports custom invalidation strategies using MEL or DataWeave expressions. https://docs.mulesoft.com/mule-runtime.3/cachescope# cache_invalidation

Correct Answer: B

To log all the errors raised by the VM Connector, the developer needs to add an async logger with the name "org.mule.extension.vm' and the level "ERROR' inside the appenders tag of the log4j2.xml file. This will enable logging all error-level events generated by the VM Connector to the console appender. https://docs.mulesoft.com/mule-runtime.3/logging-in-mule#configuringcustom-logging-settings

Correct Answer: B

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. https://docs.mulesoft.com/munit.3/munit-testflow

Correct Answer: C

To unit test modules created with XML SDK, the developer needs to use the MUnit Extensions Maven plugin. This plugin allows testing XML SDK modules using MUnit by adding a dependency to the module under test and using a custom

processor tag to invoke it.

Reference:

https://docs.mulesoft.com/mule-sdk.1/xml-sdk#testing

Correct Answer: C

The correct sequence of activities that takes place during the Maven build and deployment is validate, initialize, compile, test package, verify, install, deploy. These are Maven lifecycle phases that define a sequence of goals to execute during

a build process. Each phase represents a stage in the build lifecycle and can have zero or more goals bound to it.

Reference:

https://maven.apache.org/guides/introduction/introduction-to-the-lifecycle.html

Correct Answer: A

To temporarily persist large files over 10MB between flow executions, and routinely query whether the file data exists on separate executions, the developer should store the contents of the file on separate storage, and store the key and location of the file object using Object Store v2. This way, the developer can avoid storing large files in memory or exceeding the size limit of Object Store v2 (10MB per object). The developer can also use Object Store v2 operations to query, retrieve, or delete the file object by its key. https://docs.mulesoft.com/ object-store/osv2-faq#can-istore-files-in-object-store-v2

Correct Answer: C

To encrypt the data before sending it to the backend application using PGP encryption, the application needs the public key from the backend service. PGP encryption uses a public-key cryptography system, which means that each party has a pair of keys: a public key and a private key. The public key is used to encrypt data, and the private key is used to decrypt data. Therefore, to encrypt data for a specific recipient (the backend service), the application needs to use the recipient's public key. The recipient can then use its own private key to decrypt the data. Reference: https://docs.mulesoft.com/mule-runtime.3/cryptography-pgp

Correct Answer: D

To develop an API that retrieves data from a hospital system using reusable Java libraries, the developer should install libraries in a local repository and refer to it in the pom.xml file. This way, the developer can use Maven to manage dependencies and invoke Java code from Mule applications using Java Module operations. https://docs.mulesoft.com/mule-runtime.3/java- module-reference#add-the-java-module-to-your-project https://docs.mulesoft.com/muleruntime/4.3/ java-module-reference#invoke-java-code

Correct Answer: D

To propagate the order ID as the correlation ID across each message using Anypoint MQ, the developer should wrap all Anypoint MQ Publish operations within a With CorrelationID scope from the Tracing module, setting the correlation ID to the order ID. The With CorrelationID scope allows setting a custom correlation ID for any event that occurs within it. The Tracing module also enables distributed tracing across different Mule applications and services using Anypoint Monitoring. https://docs.mulesoft.com/tracing-module.0/tracing- module-reference#withcorrelation-id-scope https://docs.mulesoft.com/tracing-module.0/tracing-module-concepts

Correct Answer: C

To configure the Maven Resources plugin to exclude parsing binary files in the project's src/main/resources/ certs directory, option C should be used. This option specifies that any files with .cer or .jks extensions under the certs directory should be excluded from filtering. Filtering is a process of replacing placeholders with actual values in resource files during the build process. Binary files should not be filtered because they may become corrupted or unusable. Reference: https://maven.apache.org/plugins/maven-resources-plugin/examples/filter.html https://maven.apache.org/ plugins/maven-resources-plugin/examples/include-exclude.html