Helping Hand Questions for MCIA-Level-1

Explanation

* An object store is a facility for storing objects in or across Mule applications. Mule uses object stores to persist data for eventual retrieval.

* Mule provides two types of object stores:

1) In-memory store – stores objects in local Mule runtime memory. Objects are lost on shutdown of the Mule runtime.

2) Persistent store – Mule persists data when an object store is explicitly configured to be persistent.

In a standalone Mule runtime, Mule creates a default persistent store in the file system. If you do not specify an object store, the default persistent object store is used.

MuleSoft Reference:

When processing files synchronously from an FTPS server to a back-end database using VM intermediary queues for load balancing VM events on CloudHub, reliability is critical. CloudHub persistent queues should be used for FTPS file processing to ensure that no data is lost in case of worker failure or restarts. These queues provide durability and reliability since they store messages persistently.

For the batch job scope, it is not necessary to configure additional VM queues. By default, batch jobs on CloudHub use the worker's disk for VM queueing, which is reliable for handling medium-rate records processing from a source to a target system. This approach ensures that both FTPS file processing and batch job processing meet reliability requirements without additional configuration for batch job scope.

References

• MuleSoft Documentation on CloudHub and VM Queues
• Anypoint Platform Best Practices

• Requirement Analysis: The Mule application needs secure access to both an on-premises database and a Kafka cluster in AWS VPC.
• Solution: Setting up Anypoint VPN for the on-premises corporate data center and VPC peering with AWS VPC ensures secure and seamless connectivity.
• Implementation Steps:
• Advantages:

References

• MuleSoft Documentation on Anypoint VPN
• AWS Documentation on VPC Peering

To ensure that the Java Invoke static connector in a Mule 4 application can access a static method in a dependency jar file, you need to make the dependency visible to the connector's class loader. Here are the two effective methods to achieve this:

• Using Maven Command:

com.example example-library 1.0.0

• uk.co.certification.simulator.questionpool.PList@18be75a0

mvn clean package

• Configuring Dependency as a Shared Library:

xml

com.example example-library 1.0.0 provided

• Steps for Java Invoke Configuration:
• Benefits:

References:

• MuleSoft Documentation on Java Module
• Maven Documentation on Dependency Management