QUESTION: 13

An Architect needs to integrate an Adobe Commerce store with a new Shipping Carrier. Cart data is sent to the Shipping Carrier's API to retrieve the price and display to the customer. After the feature is implemented on the store, the API hits its quota and returns the error "Too many requests". The Shipping Carrier warns the store about sending too many requests with the same content to the API. In the carrier model, what should the Architect change to fix the problem?

Implement _setCachedQuotes () and_getCachedQuotes() return the data if the request matches.
In _doShipmentRequest (), call canCollectRates() before sending request to the API
Override getResponse (), save the response to a variable, check if the response exists, then return.

Answer(s): A

Explanation:

Implementing setCachedQuotes () andgetCachedQuotes() in the carrier model can allow the store to store the cart data in a cache, so that repeated requests with the same content can be retrieved from the cache instead of sending a new request to the API. This can reduce the number of requests and avoid hitting the quota limit.

Reference:

[1] https://docs.adobe.com/content/help/en/experience-manager- 65/commerce/commerce-payment-shipping-modules/shipping/shipping-carrier- apis.html [2] https://docs.adobe.com/content/help/en/experience-manager- 65/commerce/commerce-payment-shipping-modules/shipping/developing-shipping-carrier- integrations/shipping-carrier-model.html

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QUESTION: 14

A representative of a small business needs an Adobe Commerce Architect to design a custom integration of a third-party payment solution. They want to reduce the list of controls identified in their Self-Assessment Questionnaire as much as possible to achieve PCI compliance for their existing Magento application.
Which approach meets the business needs?

Utilize the payment provider Iframe system to isolate content of the embedded frame from the parent web page.
Utilize the Advanced Encryption standard (AES-256) algorithm to encrypt all customer-sensitive data from the payment module.
Utilize a trusted signed certificate issued by a Certification Authority (CA) to secure each connection made by the payment solution protocol via HTTPS.

Answer(s): A

Explanation:

The Architect should utilize the payment provider iframe system to isolate content of the embedded frame from the parent web page. This approach will reduce the list of controls identified in their Self- Assessment Questionnaire as much as possible to achieve PCI compliance for their existing Magento application. By using an iframe, the payment provider handles all customer-sensitive data and Magento does not store or process any cardholder data. This reduces the PCI scope and simplifies the compliance process. Option B is incorrect because utilizing the Advanced Encryption Standard (AES- 256) algorithm to encrypt all customer-sensitive data from the payment module will not reduce the PCI scope, but rather increase it. Magento will still store and process cardholder data, which requires more controls and validation. Option C is incorrect because utilizing a trusted signed certificate issued by a Certification Authority (CA) to secure each connection made by the payment solution protocol via HTTPS will not reduce the PCI scope, but rather ensure the security of data transmission. Magento will still store and process cardholder data, which requires more controls and validation.

Reference:

https://devdocs.magento.com/guides/v2.4/payments-integrations/payment- gateway/integration.html

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QUESTION: 15

An Architect is working to implement Adobe Commerce into a pre-built ecosystem in a company. Communication between different company domains uses event-driven design and is driven via

AMQP protocol with using RabbitMQ.
The Architect needs to establish the data flow between the ERP system and Adobe Commerce. The ERP system stores only customer data excluding customer addresses. The role of Adobe Commerce is to provide Customer Address data to the enterprise ecosystem. Primary Customer data should not be changed from Adobe Commerce side; it should only be updated by messages data from ERP.
Which three AMQP configurations should be considered to meet these requirements? (Choose three.)

Create a queue_consumer.xml and communction.xml configuration files for Customer data messages
Create a queue_publisher.xml configuration file for Customer data messages
Create a nueue_publisher.xml configuration file for Customer Address messages
Create a queue_topology.xml configuration file for Customer Address messages
Create a queue_topology.xml configuration file for Customer data messages
Create a queue_customer.xml and communication.xml configuration files for Customer Address messages

Answer(s): A,C,E

Explanation:

To establish the data flow between the ERP system and Adobe Commerce using AMQP protocol with RabbitMQ, you need to consider the following AMQP configurations:
Create a queue_consumer.xml and communication.xml configuration files for Customer data messages. These files will define the topics, handlers, and consumers that will receive and process the messages from the ERP system. The communication.xml file will also specify the schema for the Customer data messages.
Create a queue_publisher.xml configuration file for Customer Address messages. This file will define the exchange where the Customer Address messages will be published to. The exchange will route the messages to the appropriate queues based on the binding rules. Create a queue_topology.xml configuration file for Customer Address messages. This file will define the message routing rules and declare the queues and exchanges for the Customer Address messages. The queue_topology.xml file will also specify the connection name and type for RabbitMQ.

Reference:

1
1: https://devdocs.magento.com/guides/v2.3/extension-dev-guide/message-queues/config-

mq.html

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QUESTION: 16

In a custom module, an Architect wants to define a new xml configuration file. The module should be able to read all the xml configuration files declared in the system, merge them together, and use their values in PHP class.
Which two steps should the Architect make to meet this requirement? (Choose two.)

Write a plugin for \Magento\Framework\Config\Data::get() and read the custom xml files
Append the custom xml file name in "Magento\Config\Model\Config\Structure\Reader" in di.xml
Create a Data class that implements "\Magento\Framework\Config\Data'
Inject a "reader" dependency for "Magento\Framework\Config\Data" in di.xml
Make a Reader class that implements "\Magento\Framework\Config\Reader\Filesystem"

Answer(s): C,E

Explanation:

Based on web searches, it seems that Magento uses different classes and interfaces to interact with configuration files, such as Data, Reader, and Converter12. According to the documentation1, Data is a class that provides access to configuration data using a scope. Reader is an interface that reads configuration data from XML files. Converter is an interface that converts XML data into an array representation. Based on these definitions, I would say that two possible steps that the Architect should make to meet the requirement are:
C. Create a Data class that implements "\Magento\Framework\Config\Data" E. Make a Reader class that implements "\Magento\Framework\Config\Reader\Filesystem" These steps would allow the custom module to read all the XML configuration files declared in the system, merge them together, and use their values in PHP class.

The Architect should make two steps to meet this requirement: C) Create a Data class that implements "\Magento\Framework\Config\Data". This class will be responsible for reading and merging the custom xml configuration files and providing access to their values. The Data class should extend \Magento\Framework\Config\Data and use the constructor to inject the Reader class and the cache type. E) Make a Reader class that implements "\Magento\Framework\Config\Reader\Filesystem". This class will be responsible for loading and validating the custom xml configuration files from different modules. The Reader class should extend \Magento\Framework\Config\Reader\Filesystem and use the constructor to specify the file name, schema file, and validation state of the custom xml configuration files. Option A is incorrect because writing a plugin for \Magento\Framework\Config\Data::get() will not define a new xml configuration file, but rather modify the existing one. Option B is incorrect because appending the custom xml file name in "Magento\Config\Model\Config\Structure\Reader" in di.xml will not define a new xml configuration file, but rather add it to the system configuration structure. Option D is incorrect because injecting a "reader" dependency for "Magento\Framework\Config\Data" in di.xml will not define a new xml configuration file, but rather use an existing one.

Reference:

https://devdocs.magento.com/guides/v2.4/extension-dev-guide/build/XSD-XML-validation.html

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