Pass Adobe AD0-E724 Exam | Latest AD0-E724 Dumps & Practice Exams - Cert007 1 / 4 Exam : AD0-E724 Title : https://www.cert007.com/exam/ad0-e724/ Adobe Commerce Developer Professional Pass Adobe AD0-E724 Exam | Latest AD0-E724 Dumps & Practice Exams - Cert007 2 / 4 1. A developer needs to run a piece of custom logic, such as sending a notification to an external system, every time a customer successfully places an order. The custom logic does not need to modify the order object itself. What is the most appropriate and conventional Adobe Commerce component to use for this task? A. A preference for the `\Magento\Sales\Model\Order` class. B. An observer for the `checkout_onepage_controller_success_action` or `sales_order_place_after` event. C. An "around" plugin on the `\Magento\Quote\Model\QuoteManagement::placeOrder` method. D. A cron job that checks for new orders every minute. Answer: B 2 A developer is building a new Admin page using the UI Component framework. In which file is the data source for an Admin grid or form component typically defined, specifying the provider class that will supply the data? A. The `menu.xml` file B. The component's `.js` file C. The UI Component's XML declaration file (e.g., `my_grid.xml`) D. The `di.xml` file for the module Answer: C 3 Which directory is part of the core component file structure in Adobe Commerce module development? A. `vendor/magento` B. `app/code` C. `pub/static` D. All of the above Answer: D 4 How does the event/observer mechanism in Adobe Commerce function? A. It is based on the singleton pattern, where only one observer can exist for any given event. B. It is based on the factory design pattern, where an event factory creates observer objects. C. It is based on the dependency injection pattern, where events are injected directly into observer constructors. D. It is based on the publish-subscribe pattern, where code dispatches an event and any number of observers can listen and react to it. Answer: D 5 The Admin UI SDK is an out-of-process extension framework. What is the role of the `CommerceBackendUix` PHP module in this architecture? A. It provides the database connection for the external React application. B. It is a JavaScript library that replaces the need for the UI Component framework. C. It contains the React code that renders the custom Admin content. D. It acts as a bridge to allow the external extension to register its menus and pages within the Admin panel. Answer: D Pass Adobe AD0-E724 Exam | Latest AD0-E724 Dumps & Practice Exams - Cert007 3 / 4 6 What is the primary purpose of the `services.yaml` file in an Adobe Commerce on cloud infrastructure project? A. To define the services the application depends on, such as MySQL, Redis, and their versions. B. To configure the web server properties and writable mount points. C. To set environment-specific variables for different stages of deployment. D. To define the application's build hooks and deployment phases. Answer: A 7 An Adobe Commerce developer needs to transform complex product data, which is stored in an EAV (Entity-Attribute-Value) structure, into flat tables for faster querying on the storefront. What is the core purpose of the indexing system in this context? A. To improve the performance of write operations in the Admin panel. B. To archive old product data into separate tables. C. To create real-time backups of the product information. D. To transform data into optimized tables for fast read operations on the frontend. Answer: D 8 A developer is creating a new EAV attribute for products programmatically using a data patch. They want to ensure this new attribute is automatically included in the "Default" attribute set upon creation. Which step is required within the data patch's `apply()` method, after the attribute itself has been created? A. Set the `is_user_defined` property of the attribute to true. B. Run the `indexer:reindex` command. C. Assign the attribute to the desired attribute group and attribute set. D. Flush the `eav` cache type. Answer: C 9 A developer is working on an Adobe Commerce on cloud infrastructure project and needs to install a new PHP extension required by a third-party module. Which configuration file must be modified to add or enable a specific PHP extension for the cloud environment? A. `php.ini` B. `composer.json` C. `.magento/services.yaml` D. `.magento.app.yaml` Answer: D 10 A developer needs to declare an observer that listens for the `catalog_product_save_before` event. In which XML file must this observer be registered? A. `etc/events.xml` B. `etc/config.xml` C. `etc/module.xml` D. `etc/di.xml` Answer: A Pass Adobe AD0-E724 Exam | Latest AD0-E724 Dumps & Practice Exams - Cert007 4 / 4 1 1. Which layer in Adobe Commerce architecture is responsible for handling business logic and domain rules? A. Persistence Layer B. Domain Layer C. Service Layer D. Presentation Layer Answer: B 12 A developer is trying to determine why an indexer is running every time a specific entity is saved in the Admin, causing a slight delay. They would prefer this index to run on a schedule. Which two modes can an Adobe Commerce indexer operate in? (Choose 2.) A. Update Manually B. Update on Demand C. Update in Real-time D. Update on Save E. Update by Schedule Answer: D, E 13 A developer has created the backend models for a new payment method. To make this method appear as an option on the checkout page, it must be declared to the system. Which XML file is specifically used to register new payment methods and their corresponding models? A. `etc/frontend/di.xml` B. `etc/payment.xml` C. `etc/sales.xml` D. `etc/config.xml` Answer: B 14 When programmatically creating a new entity type, a developer uses the repository pattern for data management. Which of the following are key benefits of using the Service Contract and repository pattern for entity manipulation? (Select all that apply.) A. It promotes loose coupling, making the module more robust against core upgrades. B. It automatically generates REST and SOAP API endpoints for the entity. C. It bypasses all plugin and observer logic for faster execution. D. It allows direct write access to replica database connections for better performance. E. It abstracts the underlying data persistence logic, like EAV or flat tables. Answer: A, B, E