AD0-E716 Questions and Answers

According to the Magento Stack Exchange answer, system.xml is a file that defines the configuration fields for the admin area. Each field can have a validate attribute that specifies avalidation rule for the field value. Magento provides some built-in validation rules, such as phoneUS, which validates a US telephone number. Therefore, to ensure that the option contains a valid US telephone number, the developer needs to add <validate>phoneUS</validate> to the field in system.xml. Verified References:https://magento.stackexchange.com/questions/104570/magento-2-system-xml-validation-rules

To store a block in the system cache, the developer needs to set values for both thecache_lifetimeandcache_keydata properties of the block. Thecache_lifetimeproperty specifies how long the block should be cached, and thecache_keyproperty specifies a unique identifier for the block.

The following code shows how to set thecache_lifetimeandcache_keydata properties of a block:

PHP

$block->setData('cache_lifetime', 600);

$block->setData('cache_key', 'my_custom_block');

Once thecache_lifetimeandcache_keydata properties have been set, the block will be stored in the system cache and will not be regenerated on each page load.

According to the Declarative Schema Overview guide for Magento 2 developers, declarative schema is a new feature that allows developers to declare the final desired state of the database and has the system adjust to it automatically, without performing redundant operations. However, declarative schema does not support uninstalling modules or reverting changes. To remove a table when a module is disabled, the developer needs to add a schema patch that implements Magento\Framework\setup\Patch\PatchRevertabieinterface and drops the table in the revert function. The revert function will be executed when the module is disabled using bin/magento module:disable command. Verified References:https://devdocs.magento.com/guides/v2.3/extension-dev-guide/declarative-schema/

The developer can enable the magnification of CSS files on an Adobe Commerce Cloud Staging environment by locally running the command bin/magento config:set --lock-config dev/css/minify_files 1 from the command line. This will set the configuration value in the app/etc/config.php file and lock it from being changed in the Admin Panel. The developer then needs to commit the app/etc/config.php file and redeploy the environment. Verified References: [Magento 2.4 DevDocs] 2

The reason why the new customer did not receive a welcome email is that the Outgoing Emails setting is disabled in the Environment Settings in the Project Web Interface. This setting controls whether emails are sent from the application or not. By default, this setting is disabled for integration environments to prevent spamming or testing emails from being sent to real customers or recipients. The developer can enable this setting if they want to test email functionality on integration environments. Verified References: [Magento 2.4 DevDocs]

The developer can use the plugin to trigger the consumer restart by calling the function \Magento\Framework\MessageQueue\Consumers\TriggerRe5tartInterface:trigger(). This function will write a flag to the cache storage that will be checked by the consumer process. If the flag is set, the consumer process will terminate itself and restart with the updated configuration. Verified References: [Magento 2.4 DevDocs] 1

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.

ThestartEnvironmentEmulation()method resets the translation locale to the one of the emulated stores, which overrides the locale the developer has set when the order ofsetLocale()andstartEnvironmentEmulation()is used as displayed above.

The correct way to achieve the desired result is to use theemulate()method to temporarily modify the translation locale. The following code shows how to do this:

PHP

$this->_translate->emulate('en_US');

// Render the template

$this->_translate->revert();

This code will set the translation locale to English before rendering the template, and then revert the locale back to the default value after the template has been rendered.

ThestartEnvironmentEmulation()method is used to emulate a different store view or website. This can be useful for testing purposes, or for developing features that need to work in different environments.

Theemulate()method is used to temporarily modify the translation locale. This can be useful for rendering templates in a specific language, or for testing features that need to work in different languages.

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: https://devdocs.magento.com/guides/v2.3/config-guide/cli/config-cli-subcommands-cron.html

The correct answers are A and C.

The errors in the snippet are:

• Column roll_no does not have an index. It is needed since attribute_identity is set to true.
• Column student_name does not have an attribute length.

Theattribute_identityattribute specifies whether the primary key of the table should be auto-incremented. Ifattribute_identityis set totrue, then theroll_nocolumn must have an index. Thestudent_namecolumn does not have an attribute length, which is required for string columns.

The following code shows how to fix the errors:

XML

<table name="vendor_module_table">

<type>int

true

true

false

<roll_no>

<type>int

false

true

false

true

true

<type>string

255

false

Once the errors have been fixed, the table can be created successfully.

Two features that come out of the box with Adobe Commerce Cloud are Support ACL and Fastly. Support ACL is a feature that allows the developer to manage access control lists for different users and roles on the Adobe Commerce Cloud platform. The developer can create and assign permissions for different actions and resources on the project and environment levels. Fastly is a cloud-based caching service that improves site performance and security forAdobe Commerce Cloud projects. Fastly provides features such as CDN, image optimization, WAF, DDoS protection, etc. Verified References: [Magento 2.4 DevDocs] 3

The developer can add a custom filter to the virtual type Magento\Catalog\Model\Api\SearchCriteria\CollectionProcessor\ProductFilterProce5sor for supplier_id field. In the custom filter, the developer can apply the needed join and filter to the passed $collection. This is the recommended way to extend the search criteria for products using dependency injection and plugins. Verified References: [Magento 2.4 DevDocs] [Magento Stack Exchange]

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

The extension attribute is referencing the repository instead of the interface it implements. The correct XML snippet should be:

XML

group="General"

translate="true">

This attribute stores an array of custom values for the invoice.

Magento\Sales\Api\Data\InvoiceInterface

Thesource_modelattribute specifies the interface that the extension attribute is associated with. In this case, the extension attribute is associated with theMagento\Sales\Api\Data\InvoiceInterfaceinterface.

According to the Develop data and schema patches guide for Magento 2 developers, data patches are classes that contain data modification instructions. They are defined in a //Setup/Patch/Data/.php file and implement MagentoFrameworkSetupPatchDataPatchInterface. Data patches can also implement Patchversioninterface to specify the module version that the patch is associated with. The getVersion() method returns the module version as a string. To skip changes that were already applied via old format (install/upgrade scripts), the developer should implement Patchversioninterface and return 1.5.4 on the getVersion() method. This way, the data patch will only be applied if the module version is greater than or equal to 1.5.4. Verified References:https://devdocs.magento.com/guides/v2.3/extension-dev-guide/declarative-schema/data-patches.html