Question # 1 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?
Create a health check endpoint that listens on a separate port and uses a separate HTTP Listener configuration from the API
Configure the application to send health data to an external system
Create a health check endpoint that reuses the same port number and HTTP Listener configuration as the API itself
Monitor the Payment API directly sending real customer payment data
Click for Answer
Create a health check endpoint that listens on a separate port and uses a separate HTTP Listener configuration from the API
Answer Description 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 # 2 Which configurations are required for HTTP Listener to enable mTLS authentication?
Set an appropriate reconnection strategy and use persistent connections for the listener
Set an appropriate keystore configuration and use persistent connections for the listener
Set an appropriate keystore and truststore configuration for the listener
Set an appropriate truststore configuration and reconnection strategy for the listener
Click for Answer
Set an appropriate keystore and truststore configuration for the listener
Answer Description To enable mTLS authentication for HTTP Listener, the developer needs to set an appropriate keystore and truststore configuration for the listener. The keystore contains the certificate and private key of the Mule application that are used to prove its identity to clients. The truststore contains the certificates of trusted clients that are allowed to access the Mule application.
References: https://docs.mulesoft.com/mule-runtime/4.3/tls-configuration#mutual-authentication
Question # 3 A company has been using CI/CD. Its developers use Maven to handle build and deployment activities. What is the correct sequence of activities that takes place during the Maven build and deployment?
Initialize, validate, compute, test, package, verify, install, deploy
Validate, initialize, compile, package, test, install, verify, verify, deploy
Validate, initialize, compile, test package, verify, install, deploy
Validation, initialize, compile, test, package, install verify, deploy
Click for Answer
Validate, initialize, compile, test package, verify, install, deploy
Answer Description Explanation 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.
References: https://maven.apache.org/guides/introduction/introduction-to-the-lifecycle.html
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