Adobe AD0-E722 - Adobe Commerce Architect Master

The group property determines which section of the customer account the attribute belongs to. By setting the group property to 1, the reward_card_number attribute will be assigned to the default group, which is the Account Information section. This will make the attribute available in the My account/My rewards page template. References: https://experienceleague.adobe.com/docs/commerce-admin/customers/customer-accounts/attributes/attribute-properties.html?lang=en#group 1

Option C is correct because it configures the preload.keys correctly for Redis L2 caching on an Adobe Commerce on-premise instance. Redis L2 caching is a feature that allows storing the cache data in both Redis and the local file system. This way, the cache data can be loaded faster from the local storage, while Redis acts as a cache invalidation service. To use Redis L2 caching, the backend option for both frontend => page_cache and frontend => default must be set to Magento\Framework\Cache\Backend\RemoteSynchronizedCache1. To enable the preload feature, which reduces the number of requests to Redis, the preload.keys option must be specified with the cache keys that are loaded on each frontend request. However, unlike Redis L1 caching, the preload.keys must include the suffix :hash to indicate that only the hash values of the cache data are stored in Redis2. Therefore, the correct configuration for preload.keys is:

[ ‘762_EAV_ENTITY_TYPES:hash’, ‘762_GLOBAL_PLUGIN_LIST:hash’, ‘762_DB_IS_UP_TO_DATE:hash’, ‘762_SYSTEM_DEFAULT:hash’, ],

Option A is incorrect because it configures the preload.keys incorrectly for Redis L2 caching. It uses the id_prefix of frontend => page_cache (063_) instead of frontend => default (762_) for the cache keys. This will cause a mismatch between the cache keys and the cache data, and result in incorrect or missing cache data. Moreover, it does not include the suffix :hash for the preload.keys, which is required for Redis L2 caching2.

Option B is incorrect because it configures the preload.keys incorrectly for Redis L2 caching. It does not include the suffix :hash for the preload.keys, which is required for Redis L2 caching2. It also uses a wrong cache key (GLOBAL_PLUGIN_LIST) instead of GLOBAL_PLUGIN_LIST.

Option D is incorrect because it configures the preload.keys incorrectly for Redis L2 caching. It uses a wrong id_prefix (162_) instead of frontend => default (762_) for the cache keys. This will cause a mismatch between the cache keys and the cache data, and result in incorrect or missing cache data. It also uses a wrong cache key (EAV_ENTITY_TYPES) instead of EAV_ENTITY_TYPES.

References:

1: Two-level caching | Adobe Commerce Developer Guide

2: Use Redis for default cache | Adobe Commerce Developer Guide

Developer mode is the best option for setting up a development environment for testing functionality, not performance, before being passed to the testing team. In developer mode:

Errors are logged and hidden from the user. This ensures that the user does not see any uncaught exceptions or debugging information, but the developers can still access them from the log files.

Cache mode can only be changed from command line. This prevents any accidental or unauthorized changes to the cache settings from the admin panel or other sources.

Static files are created dynamically and then cached. This allows the developers to see the latest changes to the static files without having to run the static content deployment command every time. The static files are also cached for faster loading.

References: https://experienceleague.adobe.com/docs/commerce-operations/configuration-guide/setup/application-modes.html?lang=en#application-modes 1

According to the Adobe Commerce documentation, OAuth-based authentication is the recommended method for integrations that need access to system resources, such as orders, customers, products, etc. OAuth-based authentication allows the merchant to control the access level and scope of the integration, as well as to revoke the access at any time using the admin panel. OAuth-based authentication also requires an OAuth handshake between the integration and the Adobe Commerce system during activation, which ensures a secure exchange of tokens and keys. The third-party system should follow the OAuth protocol to obtain and refresh the access token, which will be used as the Bearer Token to authorize the REST API calls.

References:

Authentication | Adobe Commerce Developer Guide

OAuth-based authentication | Adobe Commerce Developer Guide

Option A is correct because updating the session host value to a shared Redis instance in the “app/etc/env.php” file will allow the session to be saved properly and prevent users from being redirected to the sign-in page after logging in. Redis is a fast and reliable in-memory data store that can be used for session storage in Magento 2. By using a shared Redis instance, the session data can be accessed by any of the backend web servers behind the load balancer, regardless of which server handled the initial request. This ensures that the user’s session is maintained and consistent across different servers1.

Option B is incorrect because increasing the session size with the command config:set system/security/max_session_size_admin will not solve the issue of session not being saved properly. This command only affects the admin session size limit, not the customer session size limit. Moreover, this command does not address the root causeof the issue, which is that the session data is not shared among the backend web servers2.

Option C is incorrect because utilizing the Remote Storage module to synchronize sessions between the servers is not a viable solution for this issue. The Remote Storage module is a feature of Magento Commerce Cloud that allows storing media files and other static content on a remote storage service such as AWS S3 or Azure Blob Storage. This module does not support synchronizing sessions between servers, as sessions are dynamic and transient data that need to be stored in a fast and accessible data store such as Redis3.

References:

1: Use Redis for session storage | Adobe Commerce Developer Guide

2: Security | Adobe Commerce User Guide

3: Remote storage | Adobe Commerce Developer Guide

The product price index can be optimized by using parallel mode and customer group merging. Parallel mode allows the indexer to run multiple threads simultaneously, which can speed up the indexing process. Customer group merging reduces the number of rows in the price index table by merging customer groups that have the same product prices. This can improve the performance of the price index queries and reduce the index size. References: Indexing optimization, Price index customer group merging

Option A is correct because enabling asynchronous indexing can improve the checkout performance by reducing the database load and avoiding locking issues. Asynchronous indexing allows the indexers to run in the background without affecting the frontend operations. The command bin/magento config:set dev/grid/async_indexing 1 can be used to enable this option in the production mode1.

Option C is correct because creating a new database and splitting the sales tables can also improve the checkout performance by distributing the database load and avoiding contention. Splitting the database allows the checkout and order management operations to use a separate master database from the rest of the Magento application tables. The command bin/magento setup:db-schema:split-sales --host="" --dbname="" --username="" --password="" can be used to configure this feature2.

Option B is incorrect because enabling asynchronous email notifications does not affect the checkout performance directly. Asynchronous email notifications allow the order confirmation emails to be sent in batches by a cron job instead of immediately after placing an order. This option can reduce the server load and improve the customer experience, but it does not impact the checkout process itself3.

Option D is incorrect because there is no such deploy mode as siege in Magento 2. The available deploy modes are default, developer, and production. Changing the deploy mode can affect the performance, caching, and error handling of the Magento application, but it does not directly affect the checkout performance4.

Option E is incorrect because there is no such admin panel setting as multithreaded checkout processing in Magento 2. The number of PHP threads used for checkout is determined by the web server configuration and the PHP-FPM settings, not by the Magento application settings. Increasing the number of PHP threads may improve thecheckout performance, but it also requires more server resources and may cause other issues5.

References:

1: Asynchronous indexing | Adobe Commerce Developer Guide

2: Split database performance solution | Adobe Commerce Developer Guide

3: Sales Emails | Adobe Commerce User Guide

4: Set up Magento modes | Adobe Commerce Developer Guide

5: PHP-FPM configuration settings | Adobe Commerce Developer Guide

The error is caused by the missing class declaration for the custom condition class. According to the Adobe Commerce documentation, to create a custom customer segment condition, the class must extend the \Magento\CustomerSegment\Model\Condition\AbstractCondition class and implement the \Magento\CustomerSegment\Model\Condition\Combine\Interface interface. The class must also declare its name, label, value type, and attribute code properties. Option B is the only option that correctly declares the class with the required properties and inheritance. Option A and Option C are incorrect because they do not extend the AbstractCondition class or implement the CombineInterface interface, and they do not declare the name, label, value type, or attribute code properties.

References:

Create a customer segment condition | Adobe Commerce Developer Guide

AbstractCondition | Adobe Commerce Developer Guide

This action is necessary to make the attribute available for content staging and preview. According to the Adobe Commerce documentation, the catalogstaging_category_update_form.xml file defines the fields that are displayed in the Scheduled Changes section of the category form. The file extends the category_form.xml file and adds additional fields that are specific to content staging, such as start and end dates, campaign name, description, etc. To include a custom category attribute in the Scheduled Changes section, the attribute must also be declared in the catalogstaging_category_update_form.xml file with the same configuration as in the category_form.xml file.

References:

Content staging | Adobe Commerce Developer Guide

Create a category attribute | Adobe Commerce Developer Guide