Pass the Adobe Adobe Commerce AD0-E724 Questions and answers with CertsForce

Thewebdirectory contains the static files that can be loaded directly. This directory includes files such as CSS, JavaScript, and images.

In Adobe Commerce themes, thewebdirectory is used to store static files such as CSS, JavaScript, images, and fonts. These files can be loaded directly by the browser. Thepreprocessedandassetsdirectories do not exist as standard directories in the theme structure for containing directly loadable static files.

The best practice to add custom logic for data formatting in a grid column is to create a new class extending \Magento\Ui\Component\Listing\Columns\Column. The prepareDataSource method is designed for processing and formatting data before it is displayed in the UI component.

Using prepareDataSource in a Custom Column Class:

By extending \Magento\Ui\Component\Listing\Columns\Column, you gain access to the prepareDataSource method, where you can manipulate data as needed.

Adding a custom class allows for reusability and modular code, which is in line with Magento’s architecture.

Why Option B is Correct:

This option uses Magento’s UI component structure properly, focusing on the intended class and method for grid data manipulation. Option A involves an unnecessary plugin, and Option C with DataProvider preference is generally discouraged for simple UI modifications.

Implementation Steps:

Extend the Column class and add your logic in the prepareDataSource method.

Then, in your customer_listing.xml, reference this class within the node using the class attribute.

The command to display a full list of enabled and disabled Magento modules isbin/magento module:status. This command provides a comprehensive overview of all modules within the Magento instance, categorizing them into enabled and disabled modules. This information is crucial for debugging and development purposes, as it allows developers to quickly understand which components of Magento are active and which are not, facilitating troubleshooting and configuration adjustments​​.

To override the current parent theme styles in a custom theme being developed for Adobe Commerce, the developer should use the_theme.lessfile. This file is specifically designed for customizing and overriding the default styles provided by the parent theme, making option B the correct choice. The_theme.lessfile is a central place for theme-specific customizations.

According to the Adobe Commerce User Guide, a tax class can be assigned to either a product or a customer group in Adobe Commerce. A product tax class determines how a product is taxed, while a customer tax class determines how a customer is taxed based on their location and group membership. Shipping is considered as a product tax class in Adobe Commerce, and it can be assigned to different shipping methods or rates. The other options are not valid for assigning a tax class.

In Adobe Commerce, tax classes can be assigned to products and shipping. Categories, however, do not have tax classes assigned to them directly. Tax classes applied to shipping allow merchants to specify how taxes should be calculated for shipping costs, making option B the correct answer. Orders and categories do not have direct associations with tax classes in the same way products and shipping do.

For a payment method to be available in the admin panel (backend), the configuration must explicitly allow its internal use. This is controlled by the can_use_internal flag in config.xml.

Configuration for Admin Use:

The can_use_internal flag determines if a payment method is available for admin users when placing orders from the backend. By default, this is often set to false for some custom payment methods, meaning they won’t appear in the admin.

Why Option C is Correct:

Setting can_use_internal to true makes the payment method available for backend order creation, which is why this is the most probable reason it isn’t visible in the admin.

Options A and B do not influence the payment method’s availability in the admin; they affect verification types and capture settings, respectively.

To override a private method in a third-party module class, the most effective approach is to use a preference. This involves creating a custom class with the corrected logic and then defining this class as a preference for the original one in thedi.xmlfile. Plugins cannot be used to override private methods, final methods, final classes, or classes created without dependency injection. Therefore, the preference mechanism, which allows for the substitution of the entire class, becomes the viable method to override a private method and modify its behavior​​.

In Magento 2, to add a new action to a pre-existing route without interfering with the existing functionality, the new action should be placed in the same directory structure under the new module’s controller namespace. Magento's autoloading mechanism will automatically detect and include it alongside the original module's actions.

Here's how you can achieve this:

Directory Structure: Ensure that your new module's controller directory structure mirrors that of the original module.

Controller Action: Define the new action within the appropriate directory.

For example, if you want to add a new action to thecatalogroute inMagento_Catalog:

Create a directory structureapp/code/My/Module/Controller/Catalog/.

Add your new action class in this directory, for example:

namespace My\Module\Controller\Catalog;

use Magento\Framework\App\Action\Action;

use Magento\Framework\App\Action\Context;

class NewAction extends Action

{

public function __construct(Context $context)

{

parent::__construct($context);

}

public function execute()

{

// Your custom logic here

}

}

Router Configuration: Magento automatically includes this action when the route matches.

By following this method, you ensure that your new action is added seamlessly without modifying the original module or causing conflicts. Magento's router will include and recognize your action based on the directory and namespace conventions.

Sources:

Fundamentals of Magento 2 Development documents​​ .

Magento 2 official developer documentation.

To minimize downtime during deployment, one of the most effective strategies is to configure static content deployment (SCD) to run during the build phase and optimize the number of threads used during the process.

Configuring SCD in the Build Phase:

Running SCD during the build phase reduces the amount of work required during the deployment phase, which helps in reducing downtime.

Increasing SCD.THREADS:

Increasing the number of threads (SCD.THREADS) speeds up the static content generation by utilizing more parallel processing, which can significantly reduce build time.

Why Option A is Correct:

Configuring SCD in the build phase and increasing SCD.THREADS are both recommended practices to minimize deployment time.

Option B’s recommendation to decrease threads would slow down SCD, and Option C does not provide an active approach to adjust thread counts for optimizing the process.

Adobe Commerce Cloud offers several out-of-the-box features, including built-in Fastly integration for CDN and web application firewall services, as well as continuous deployment capabilities through its cloud infrastructure.

Continuous Deployment:

Adobe Commerce Cloud supports continuous deployment workflows, allowing code to be automatically built, tested, and deployed through its integration with Git and cloud CI/CD pipelines.

Fastly Integration:

Fastly is included as a CDN and caching layer with Adobe Commerce Cloud, offering improved site speed and security through caching and a web application firewall.

Why Options B and D are Correct:

Both of these features are inherent to Adobe Commerce Cloud. Option A (Support ACL) is a part of the Magento Admin Panel but is not a cloud-specific feature, and Option C (Blog platform connector) is not provided out-of-the-box.