AD0-E716 Sample Questions Answers

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

In Adobe Commerce Cloud, email functionality for Staging and Production environments can be controlled through the Project Web Interface. To enable outgoing emails, you can toggle the setting from within the environment configuration.

Using the Project Web Interface:

Navigate to the Project Web Interface, select the Staging environment, and configure the environment settings. Here, you can enable or disable outgoing emails with a simple toggle.

Why Option C is Correct:

This method directly interacts with Adobe Commerce Cloud's environment settings through the GUI. Options A and B are not valid commands in Adobe Commerce Cloud for enabling SMTP or email.

References:

Adobe Commerce Cloud documentation on Managing Email Settings

Two ways to access the PHP error logs on Adobe Commerce Cloud are to use the dedicated command from Cloud CLI for Commerce and to connect to the servers via SSH and localize the log files. The Cloud CLI for Commerce is a command-line tool that allows developers to interact with their Adobe Commerce Cloud projects and environments. The developer can use the command magento-cloud log php to view or download the PHP error logs from any environment. 

In Adobe Commerce Cloud, accessing PHP error logs can be done through the Cloud CLI or by directly connecting to the server via SSH.

Cloud CLI for Accessing Logs:

The Cloud CLI provides commands to access various logs, including PHP error logs, which can be accessed easily without directly connecting to the server.

SSH for Direct Log Access:

For more hands-on control or specific log inspection, SSH allows you to connect to the server and directly access log files located typically in the /var/log directory on Adobe Commerce Cloud environments.

Why Options A and C are Correct:

These two methods provide direct and official ways to access error logs on Adobe Commerce Cloud.

Option B is incorrect as the Project Web Interface does not have a dedicated PHP error log entry. Option D is incorrect as there is no Adobe Admin Log application.

References:

Adobe Commerce Cloud documentation on Accessing Logs

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 the catalog route in Magento_Catalog:

Create a directory structure app/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.

When you disable a module, Magento removes all of its declarative schema changes from the database the next time you run bin/magento setup:upgrade."

This means that when the developer disables the module and runs setup:upgrade, Adobe Commerce will automatically handle the removal of the database table created by the module's declarative schema.

For reference, here are some key points from the documentation:

[Disable a Module](https://x.com/i/grok?text=Disable%20a%20Module) - This section explains how Magento handles the database schema when a module is disabled.

Declarative Schema Configuration - Provides an overview of how declarative schema works, including its behavior when modules are disabled or uninstalled.

Therefore, based on the official Adobe Commerce documentation, the correct action for the developer is to do nothing further beyond disabling the module and running bin/magento setup:upgrade. Magento will take care of removing the table associated with the module as part of its schema management process.

The Content Security Policy (CSP) in Adobe Commerce (Magento) restricts the types of content that can be loaded on a page to protect against malicious attacks, such as cross-site scripting (XSS). When an iframe is added, and a JavaScript library is loaded from an external source, these resources must be whitelisted explicitly using the csp_whitelist.xml file.

In this specific case:

The frame-src directive controls the sources from which iframes can be embedded. Since the developer is embedding an iframe from an external domain, they need to whitelist this domain for frame-src.

The script-src directive controls the sources from which JavaScript files can be loaded. The external JavaScript library must be whitelisted under script-src to allow it to execute.

Therefore, the correct policy IDs to whitelist are:

frame-src: to allow the embedding of content from an external domain in an iframe.

script-src: to allow the loading and execution of JavaScript files from the external domain.

Here’s how to update the csp_whitelist.xml file with the correct directives:

http://www.w3.org/2001/XMLSchema-instance " xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Csp:etc/csp_whitelist.xsd">

Replace your-external-domain.com with the actual domain of the external iframe and JavaScript source.

Additional Resources:

Adobe Commerce Developer Guide: Content Security Policy (CSP)

CSP Policies and Directives: Explanation of all supported CSP directives and how to configure them.

Some of the features provided by ECE-Tools are building application, applying custom patches, and dumping configuration for static content deployment. ECE-Tools is a set of scripts and tools designed to manage and deploy Adobe Commerce Cloud projects. It provides commands for building application code, applying patches for Magento core issues or custom modules, and dumping configuration settings for static content deployment optimization. Verified References: [Magento 2.4 DevDocs] 2

The ECE-Tools package for Adobe Commerce Cloud provides a range of tools and scripts to manage and streamline deployment and maintenance tasks. Among its key features:

Application Builds:

ECE-Tools handles the build process, which includes compiling the code, preparing static content, and configuring deployment.

Applying Custom Patches:

It includes capabilities for managing and applying custom patches to the Adobe Commerce application during deployment, which is essential for customization and bug fixes.

Dump Configuration for Static Content Deployment:

ECE-Tools can dump configuration for static content deployment, optimizing the static content deployment process by handling configurations and assets efficiently.

Why Option A is Correct:

Option A lists these core functionalities provided by ECE-Tools. Option B incorrectly includes Fastly configuration, which is managed separately. Option C mentions S3 backups, which are not directly handled by ECE-Tools.

References:

Adobe Commerce Cloud documentation on ECE-Tools

To display a "file upload" field in the Adobe Commerce (Magento) admin configuration and process the uploaded CSV file, two key requirements must be met:

Backend Model to Handle File Upload Processing (Option B):The backend model (\My\Module\Model\Config\Backend\ImportFees) is required to extend \Magento\Framework\App\Config\Value and override the afterSave method. This method will contain the logic needed to process the uploaded CSV file after it has been saved. The backend model is the key component that allows you to handle custom processing, like reading the CSV file and executing the required operations.

Explanation: The backend model is used in Magento to add logic for saving configuration values in a custom way. Here, it’s essential because you need to process the CSV file and potentially save additional data in the database or perform other operations.

References: Magento DevDocs and core modules show that the backend model is utilized whenever a custom save action is required for admin configuration values.

File Type Configuration in system.xml (Option C):Defining the field in etc/adminhtml/system.xml with the type="file" attribute ensures that Magento renders this field as a file upload input in the admin configuration. The tag should have the appropriate id, label, type="file", and other attributes necessary to define it in the backend configuration. The field’s type attribute set to file enables the file upload feature within the configuration.

Explanation: The file type within system.xml instructs Magento to render a file input field. This is crucial for allowing users to upload a file in the admin configuration, which then can be processed by the backend model.

References: The Magento official documentation outlines how system.xml configuration files can be used to add custom fields to the system configuration in the Magento backend.

Options A and D are incorrect because they do not specifically address the requirements of setting up a file upload field and processing a CSV import. Option A configures a backend model but lacks the necessary file type definition. Option D defines a custom type for the file field but does not directly address the file upload or CSV processing requirements.

The type of environment that will be provisioned when launching the CLI for Commerce command magento-cloud environment:branch is an integration environment with the code and database from the parent environment. Integration environments are temporary environments that are used for testing and development purposes on the Adobe Commerce Cloud platform. They can be created from any branch of code and have their own dedicated database and services. When creating an integration environment using the CLI for Commerce command, the code and database from the parent environment are copied to the new integration environment, creating an exact replica of the parent environment. Verified References: [Magento 2.4 DevDocs]

If the Sodium extension is installed, Argon 2ID13 will be chosen as the Magento default hashing algorithm. Otherwise, SHA256 will be used.

The Sodium extension is a PHP extension that provides cryptographic functions. Argon 2ID13 is a password hashing algorithm that is considered to be more secure than SHA256.

If the Sodium extension is installed, Magento will use Argon 2ID13 as the default hashing algorithm for customer passwords. If the Sodium extension is not installed, Magento will use SHA256 as the default hashing algorithm.

Adobe Commerce uses secure hashing algorithms for customer passwords. As of the more recent updates, Adobe Commerce defaults to using the Argon2ID13 hashing algorithm, provided that the Sodium PHP extension is available. Argon2ID is considered a secure and modern hashing algorithm designed to protect against brute-force attacks.

If the Sodium extension is not available, Adobe Commerce falls back to using SHA256, which, while secure, is not as robust as Argon2ID13.

This functionality ensures that customer data is safeguarded with the highest level of security available based on the server configuration.

Additional Resources:

Adobe Commerce Developer Guide: Hashing Algorithms

PHP Documentation: Argon2 and Sodium

 When using an integration token to access Magento’s REST API, you can authenticate requests by including the token in the Authorization header as a Bearer token. This allows the system to recognize the permissions assigned to the integration and grant access to the specified resources.

Using the Access Token as Bearer Token:

In Magento, integration tokens are treated as Bearer tokens for API authentication. Once the token is generated, you can directly use it in the Authorization header.

The access token XXXXXX will provide access to resources allowed by the Magento_Customer::customer permission.

Why Option A is Correct:

Option A shows the correct way to authenticate an API call using a pre-existing integration token by setting the header Authorization: Bearer XXXXXX. This is a straightforward way to search for customers without additional steps.

Options B and C describe methods that are not necessary for this scenario. The access token already has the necessary permissions, so there’s no need to re-authenticate or obtain an admin token.

Example Command:

curl -X GET "https://magentourl/rest/V1/customers/search?searchCriteria[filterGroups][0] [filters][0][field]=email&searchCriteria[filterGroups][0][filters][0][value]=example@example.com" -H "Authorization: Bearer XXXXXX"

References:

Adobe Commerce REST API documentation on Authentication

Magento Integration Tokens Guide on Using Tokens

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]

In Adobe Commerce, when you need to add a custom filter for a non-EAV attribute stored in a standalone table, the most maintainable approach is to create a custom filter for ProductFilterProcessor. This processor allows for customized search criteria handling, which can be extended to include custom joins and filters without altering core functionality or relying on plugins and observers.

Why Custom Filter in ProductFilterProcessor is Preferred:

The ProductFilterProcessor within SearchCriteria\CollectionProcessor is specifically designed to handle filtering of product collections. By extending this with a custom filter, the developer can implement joins and filters on standalone tables.

This approach is modular and reusable, allowing any code that utilizes ProductRepositoryInterface to apply the supplier_id filter seamlessly.

Implementation of Custom Filter:

Define a custom filter class that implements the required logic to join the standalone table and apply the supplier_id filter.

Register this custom filter with a virtual type in di.xml for ProductFilterProcessor, so it can process the supplier_id as part of the search criteria.

Why Options A and C are Less Suitable:

Option A relies on an event observer, which is less modular and may have performance implications since it requires listening to every product collection load event.

Option C, while functional, involves modifying CollectionProcessorInterface::process(), which is more generic and not specifically tailored for product collection filtering.

References:

Magento Developer Documentation on Using Custom Filters in CollectionProcessor

Magento DevDocs on Dependency Injection and Virtual Types

The input_type attribute of a product EAV attribute specifies the type of input field that will be used to enter the value of the attribute in the admin panel. The textarea input type is used for WYSIWYG fields. If the input_type attribute is not set to textarea, then the attribute will not appear as WYSIWYG in the admin panel.

To fix this, the developer should set the input_type attribute to textarea.

https://developer.adobe.com/commerce/php/development/components/plugins/#scenario-b-without-a-callable-around

https://developer.adobe.com/commerce/php/best-practices/extensions/observers/#do-not-rely-on-invocation-order

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 properly configure a Magento CLI command that includes a required argument, such as --order_id, which is mandatory for processing an order, the best approach is to use the addArgument method within the configure function. This method defines required arguments for the command, ensuring the user provides the necessary data.

Option D is correct for the following reasons:

Using addArgument for Required Inputs:The addArgument method is used here to declare order_id as a required argument. This is more appropriate than addOption when the parameter is essential for command execution and should not be omitted. By specifying InputArgument::REQUIRED, the command ensures that the order_id must be provided by the user.

Explanation: addArgument is ideal for required data that the command cannot function without, while addOption is typically used for optional parameters. order_id is essential to identify which order to process, making addArgument the suitable choice here.

References: According to Magento’s official developer documentation, addArgument is used for required command-line arguments, and this is standard practice for defining necessary inputs in CLI commands.

Properly Configured Command Name and Description:The setName and setDescription methods are correctly used in this option to specify the command’s name and its purpose. This helps in making the command self-descriptive, improving usability and readability for other developers or administrators using the CLI.

Options A, B, and C are incorrect because they either:

Use addOption instead of addArgument, which is less suitable for mandatory parameters (Option B).

Define the same parameter redundantly (Option C).

Use other non-standard configurations that do not align with Magento's best practices for required CLI parameters (Option A).