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  5. MuleSoft Certified Integration Architect - Level 1 MAINTENANCE Questions and Answers

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Questions # 31:

An organization has implemented the cluster with two customer hosted Mule runtimes is hosting an application.

This application has a flow with a JMS listener configured to consume messages from a queue destination. As an integration architect can you advise which JMS listener configuration must be used to receive messages in all the nodes of the cluster?

Options:

A.

Use the parameter primaryNodeOnly= "false" on the JMS listener

B.

Use the parameter primaryNodeOnly= "false" on the JMS listener with a shared subscription

C.

Use the parameter primaryNodeOnly= "true" on the JMS listener with a non­shared subscription

D.

Use the parameter primaryNodeOnly= "true" on the JMS listener

Expert Solution
Questions # 32:

When the mule application using VM is deployed to a customer-hosted cluster or multiple cloudhub workers, how are messages consumed by the Mule engine?

Options:

A.

in non-deterministic way

B.

by starting an XA transaction for each new message

C.

in a deterministic way

D.

the primary only in order to avoid duplicate processing

Expert Solution
Questions # 33:

An external web UI application currently accepts occasional HTTP requests from client web browsers to change (insert, update, or delete) inventory pricing information in an inventory system's database. Each inventory pricing change must be transformed and then synchronized with multiple customer experience systems in near real-time (in under 10 seconds). New customer experience systems are expected to be added in the future.

The database is used heavily and limits the number of SELECT queries that can be made to the database to 10 requests per hour per user.

What is the most scalable, idiomatic (used for its intended purpose), decoupled. reusable, and maintainable integration mechanism available to synchronize each inventory pricing change with the various customer experience systems in near real-time?

Options:

A.

Write a Mule application with a Database On Table Row event source configured for the inventory pricing database, with the watermark attribute set to an appropriate database column

In the same now, use a Scatter-Gather to call each customer experience system's REST API with transformed inventory-pricing records

B.

Add a trigger to the inventory-pricing database table so that for each change to the inventory pricing database, a stored procedure is called that makes a REST call to a Mule application

Write the Mule application to publish each Mule event as a message to an Anypoint MQ exchange

Write other Mule applications to subscribe to the Anypoint MQ exchange, transform each received message, and then update the Mule application's corresp

C.

Replace the external web UI application with a Mule application to accept HTTP requests from client web browsers

In the same Mule application, use a Batch Job scope to test if the database request will succeed, aggregate pricing changes within a short time window, and then update both the inventory pricing database and each customer experience system using a Parallel For Each scope

D.

Write a Mule application with a Database On Table Row event source configured for the inventory pricing database, with the ID attribute set to an appropriate database column

In the same flow, use a Batch Job scope to publish transformed Inventory-pricing records to an Anypoint MQ queue

Write other Mule applications to subscribe to the Anypoint MQ queue, transform each received message, and then update the Mule application's corr

Expert Solution
Questions # 34:

An organization is using Mulesoft cloudhub and develops API's in the latest version. As a part of requirements for one of the API's, third party API needs to be called. The security team has made it clear that calling any external API needs to have include listing

As an integration architect please suggest the best way to accomplish the design plan to support these requirements?

Options:

A.

Implement includelist IP on the cloudhub VPC firewall to allow the traffic

B.

Implement the validation of includelisted IP operation

C.

Implement the Any point filter processor to implement the include list IP

D.

Implement a proxy for the third party API and enforce the IPinclude list policy and call this proxy from the flow of the API

Expert Solution
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