To configure Adobe Commerce to consume messages from a RabbitMQ queue, two primary configuration files are necessary. The queuetopology.xml file is used to declare the message queue infrastructure, including the exchange, the queue itself, and the binding that connects them. This directly addresses the requirement to "configure a local queue." The queueconsumer.xml file then defines the consumer process, linking the previously declared queue to a specific handler class that will process the incoming messages. This fulfills the requirement to "consume messages." Together, these two files provide the complete configuration for a message consumer.

queuepublisher.xml is used for configuring how to publish (send) messages to an exchange, not for consuming them as required by the scenario.

communication.xml defines communication topics and specifies whether they are synchronous or asynchronous, but it does not configure the queue or the consumer itself.

1. Adobe Commerce Developer Documentation

"Configure message queues": This document explicitly details the roles of the configuration files. It states

"Use queuetopology.xml to define the message routing rules and declare queues and exchanges" and "Use queueconsumer.xml to define the relationship between an existing queue and its consumer." This directly supports that these two files are required for the task.

Source: Adobe Commerce Developer Documentation

"PHP Development > Message queues > Configure message queues".

2. Adobe Commerce Developer Documentation

"Create a consumer": This tutorial provides a step-by-step guide. Step 2 is "Define the queue consumer in queueconsumer.xml

" and Step 3 is "Define the queue topology in queuetopology.xml." This confirms these are the essential files for creating a consumer.

Source: Adobe Commerce Developer Documentation

"PHP Development > Message queues > Create a consumer".

3. Adobe Commerce Developer Documentation

"Message Queues Overview": In the "Configuration files" section

the purpose of each file is described. queuetopology.xml is for defining topology

and queueconsumer.xml is for defining consumers. The description for queuepublisher.xml confirms it is for publishing

making options C and D incorrect.

Source: Adobe Commerce Developer Documentation

"PHP Development > Message queues > Message Queues Overview".