Adobe AD0-E716 Adobe Commerce Developer with Cloud Add-on Exam Practice Test

Decreasing the batch size value improves performance by reducing the memory usage for the temporary table. The batch size value determines how many rows of data are processed at a time by the indexer. A large batch size value can cause the allocated memory size for the temporary table to exceed 20% of innodb_buffer_pool_size, which can result in errors and slow down the indexing process. By lowering the batch size value, the indexer can process the data more efficiently and avoid memory issues. Verified References: [Magento 2.4 DevDocs] [Magento Stack Exchange]

The command used to upgrade ECE-Tools on an Adobe Commerce Cloud platform is composer update magento/ece-tools --with-all-dependencies. This command will update the ECE-Tools package and its dependencies to the latest version available in the composer repository. The developer then needs to commit and push the changes to the composer.json and composer.lock files and redeploy the environment. Verified References: [Magento 2.4 DevDocs]

The shipping method would display $10 and customers would pay $10 for using the new shipping method. This is because the collectRates method sets the price and cost of the shipping method to 10 in the result object. The price is what is shown to the customer on thefrontend and the cost is what is charged to the customer when they place the order. The handling fee is not used in this case because it is set to zero in the config.xml file. Verified References: [Magento 2.4 DevDocs] [Magento Stack Exchange]

To add an action to a pre-existing route without interfering with the functionality of the original route, the developer must use thebeforeorafterparameters in the route declaration. This will load the developer's module in before or after the original module, respectively.

For example, the following code would add an action to themy_module/indexroute before the action from the original module:

my_module_before

Themy_module_beforeaction would be executed before theMyModule\Controller\Indexaction, which would allow the developer to perform any necessary setup before the original action is executed.

According to the Configure and run cron guide for Magento 2 developers, the crontab.xmi file is used to declare and configure cron jobs for a module. The file should specify the name, instance, method and schedule of the cron job. Therefore, creating a crontab.xmi file and setting a schedule for the new cron job are the minimally required steps to accomplish this task. Verified References:

To display the "file upload" field and process the actual CSV import, the following two requirements must be met:

• The developer must create a new system configuration setting that specifies the path to the CSV file.
• The developer must create a new controller action that handles the file upload and import process.

Thesystem.xmlfile is used to define system configuration settings. The following XML snippet shows how to define a new system configuration setting for the CSV file path:

XML

/path/to/csv/file

TheController\Adminhtml\ShipmentFeescontroller class is used to handle the file upload and import process. The following code shows how to create a new controller action that handles the file upload and import process:

PHP

public function uploadAction()

{

$file = $this->getRequest()->getFile('shipment_fees_csv_file');

if ($file->isUploaded()) {

$importer = new ShipmentFeesImporter();

$importer->import($file);

}

return $this->redirect('adminhtml/system_config/edit/section/shipment_fees');

}

According to the Magento Stack Exchange answer, form key validation is a security feature that prevents CSRF attacks by checking if the form key in the request matches the one generated by Magento. If the developer does not include the form_key in their custom form, the validation will fail and an error will be shown. Therefore, the developer needs to add the form_key to their requests by using getBlockHtml (‘formkey’) ?> in their template file. Verified References:

The following SearchCriteria query will replicate the SQL query:

$searchCriteria = new \Magento\Framework\Api\SearchCriteriaBuilder();

$searchCriteria->addFilter('name', 'Brand 1', 'eq');

$searchCriteria->addFilter('status', 1, 'eq');

$brandCollection = $this->brandRepository->getList($searchCriteria);

The developer can deal with this issue by modifying the admin path timeout value in seconds in the Fastly Configuration section > Advanced Configuration in the Admin Panel. Fastly is a cloud-based caching service that improves site performance and security for Adobe Commerce Cloud projects. Fastly has a default timeout value of 180 seconds for admin requests, which means that any request that takes longer than 180 seconds will be terminated and result in a timeout error. The developer can increase this value to allow longer processing time for admin requests without causing errors. The developer also needs to save the configuration and upload VCL to Fastly to apply the changes. Verified References: [Magento 2.4 DevDocs]

To ensure that the developer's observer runs after the observer defined by the third-party module, they need to set the sort order of the new observer to be less than that of the third-party vendor's observer.

The sort order is a number that is assigned to each observer. The lower the number, the earlier the observer will be executed.

For example, if the third-party vendor's observer has a sort order of 10, the developer's observer would need to have a sort order of 9 or lower.

The developer can turn on outgoing emails on an Adobe Commerce Cloud Staging environment by accessing the Project Web Interface and selecting the Staging environment. Then, the developer can select Configure environment and toggle Outgoing emails On. This will enable the SMTP service for the Staging environment and allow emails to be sent from the application. Verified References: [Magento 2.4 DevDocs] 1

According to the ImageUploader component guide for Magento 2 developers, the ImageUploader UI component gives users the ability to upload images to the Magento Media Gallery. This component is a variation of the FileUploader component and uses the same configuration settings. The ImageUploader component uses the Magento\catalog\Model\iinageUploader class for image uploading, which has properties such as basePath and baseTmpPath that define where the images are stored. To extend the default imageuploader class and use it without affecting the other modules that are already using it, the developer needs to create a virtual type of this class in their module’s di.xml file and specify different values for basePath and baseTmpPath. The developer also needs to inject their virtual type into their admin controller using the imageUploader argument. Therefore, option B is the correct answer, as it shows the correct di.xml and controller code to extend and use the imageuploader class. Verified References:

According to the Develop data and schema patches guide for Magento 2 developers, data patches can also implement PatchRevertabieinterface to provide rollback functionality for their changes. The revert() method contains the instructions to undo the data modifications made by the patch. To ensure that the product attribute is removed when the module is uninstalled, the developer should make the data patch implement PatchRevertabieinterface and implement the revert method to remove the product attribute using EavSetupFactory or AttributeRepositoryInterface. Verified References:

The developer can test the new feature under the integration environment by deactivating one of the active integration environment branches, creating a new active branch from integration and installing the module, and pushing the changes. This is because Enhanced Integration Environments have a limit of four active branches at a time, and each branch has its own dedicated database and services. The developer can use the Cloud CLI for Commerce tool to manage the branches and deploy the code changes. Verified References: [Magento 2.4 DevDocs] 1

 The steps necessary prior to redeploying in order to upgrade to Enhanced Integration Environments are to limit the number of integration branches to two and to submit a support ticket requesting the upgrade. Enhanced Integration Environments are an improved version of integration environments that offer better performance, stability, and security. They have a limit of four active branches at a time, but only two branches can be migrated from standard integration environments. The developer needs to delete or deactivate any extra branches before requesting the upgrade from Adobe support. Verified References: [Magento 2.4 DevDocs]

The developer can customize the appearance of the error message by calling thesetDecorationType()method on theSymfony\Console\Output\OutputInterfaceobject before callingwriteln(). ThesetDecorationType()method takes a single argument, which is the type of decoration that the developer wants to use. In this case, the developer wants to use theSTYPE_ERRORdecoration, which will highlight the message in red.

Here is an example of how to customize the appearance of the error message:

$output = new Symfony\Console\Output\ConsoleOutput();

$output->setDecorationType(Symfony\Console\Output\OutputInterface::STYPE_ERROR);

$output->writeln('This is an error message.');

The output of this code will be an error message that is highlighted in red.

The order in which the ECE-Tools package applies patches is as follows:

• All required Magento patches included in the Cloud Patches for Commerce package.
• Selected optional Magento patches included in the Quality Patches Tool.
• Custom patches in the /m2-hotfixes directory in alphabetical order by patch name.

The ECE-Tools package is a set of scripts and tools designed to manage and deploy Adobe Commerce Cloud projects. The Cloud Patches for Commerce package is a dependency of ECE-Tools that provides a set of required patches for Magento core issues that affect Adobe Commerce Cloud functionality. The Quality Patches Tool is an optional tool that allows developers to apply individual patches for specific Magento issues without waiting for a full product release. The /m2-hotfixes directory is a directory where developers can place their own custom patches for their Adobe Commerce Cloud projects. Verified References: [Magento 2.4 DevDocs]

To add a custom fixture to test a MyVendor_MyModule, the developer needs to do the following:

• Create a PHP file with the fixture data in [magento root dir]/dev/tests/integration/testsuite/MyVendor/MyModule/_files/my_fixture.php.
• Add the following annotation to the test method:

@magentoDataFixture(

'testsuite/MyVendor/MyModule/_files/my_fixture.php'

)

This will tell Magento to load the fixture data from themy_fixture.phpfile before the test method is executed.