Free Adobe Commerce Developer Expert Exam AD0-E709 Exam Practice Test

An Adobe Commerce developer has just finished creating a new custom entity, a block that extends \Mangento\Framework\View|Element\abstractBlock that lists all of the existing entities and a controller with the appropriate handle to display the block.The developer now wants to implement cache on the block so that when one of the custom entities is saved, the cache of the block is automatically invalidated.According to best practices- what are the two steps to accomplish this? (Choose two.)

• 1. Override AbstractBlock: :getCecheKeyInfo and return an array containing the ids of all displayed entities. 2. Override AbstractBlock: :getCacheTags and return an array containing, for all displayed entities, the value returned by the getcachetag method of the model
• 1. Create an around plugin on the save( ) method of the model of the entity. 2. Use the cleanCacheByTags( ) method Of \MagentoVFramework\App\Cache\FlushCaehebyTae with a single argument containing the concatenation of a chosen key and the td of the entity.
• 1. Implement \Magento\framework\DataObject\identityInterface on the block that lists the entities. 2. Implement the getidentitiesO method on the block to return an array containing, for all displayed entities, the value returned by the getidentities() method of the model.
• 1. Implement \magento\Frame\DataObject\identityInterface on the model of the entity. 2. Implement the getidentities() method to return the concatenation of a chosen key and the id of the entity.

An Adobe Commerce developer is being tasked with creating a new cron job to run a method that has already been written. What are the minimally required steps to accomplish this?

• Create crontab.xml and cron_groups.xml files to assign the new job to a cron group.
• Create a crontab.xml file and set a schedule for the new cron job.
• Create a crontab.xml file and a new system configuration in system.xml for the schedule.

An Adobe Commerce developer has created a before plugin for the save() function within the magento\Framework\App\Cache\Proxy class. The purpose of this plugin is to add a prefix on all cache identifiers that fulfill certain criteria.Why is the plugin not executing as expected?

• Another around ptugm defined for the same function does not call the callable .
• Cache identifiers are immutable and cannot be changed.
• The target class implements Magento\frameworK\ObjectManager\Nointerceptablelnterface .

A message queue currently has queue/consumer-wait-for-messages set to true, which allows the consumer process to run until a message is inserted into the queue. A piece of functionality is driven by data stored in the model. \Magento\Variable\\Model\variable and this value is only loaded once during the consumer run. If the variable is updated we want the consumer to restart so that the new value is loaded into memory without having to reload the variable on each message consumed.The Adobe Commerce developer has created an after plugin on the \Magento\variable\variable::save() function.How would the developer use the plugin to trigger the consumer restart?

• Set the global cache key trigger_consumer_resart to 1.
• Call the function \Magento\FrameWork\MessageQueue\Constomers triggerRest art Interface: trigger () .
• Call the function \Magento\Framework\MessageQueue\Poison\PillPoisoninterface::put() .

An Adobe Commerce developer added a new API method to search and retrieve a list of Posts for a custom Blog functionality. This is the content of the module's etc/webapi.xml file:The new code has been deployed to production and the merchant is using https: //merchant.domain.com/swagger to review the new endpoint, but it is not visible in swagger.What would be a reason for this?

• Since the new endpoint is not anonymous, the merchant needs to enter a valid integration token in swagger in order to see the new method.
• The webapi.xml file should be moved into the etc/webapi_rest/webapi.xml file.
• The @return annotation is missing in the MyVendor\Blog\Api\Post Repositoryinterfacec

When paying by Bank Transfer, there is a requirement to send an email to customer service with payment details, after the order is placed successfully. Which two events can be used to send an email during the order placement process? (Choose two.)

• sales_order_payment_pay
• sales_model_service_auote_submit_before
• sales_model_service_quote_submit_success
• sales_order_place_after

An Adobe Commerce developer is working on an Acme_Exceptions module which is supposed to overwrite logic inside some of Magento native exceptions such as \Magento\Frame-work\Exception\NoSuchEntityException or \Mogento\Framwork\GraphQ1\Exception\GrephQlInputException , The module is open-source and will be available on packagist.org.The build of the codebase of projects, including the module, will sometimes take place in docker containers with full access to filesystem. but then it is deployed to a read-only filesystem.Which two approaches would the developer use to overwrite logic in those exceptions? (Choose two.)

• 1. Create a version of those exceptions inside the module using the original namespaces and classes, e.g. \Magento\Framewrk\Exception\NoSuchEntityException . 2. Use composer's extra > nap node to copy those exceptions to their original destinations like vendor/Magento/framework/exception/ to replace original files.
• 1. Create a version of those exceptions inside the module using new namespace, e.g. \Acme\Exceptions\Exception\NoSuchEntityException . 2. Create a di.xmi file inside of the module and use to make the system use own versions instead of native versions.
• 1. Create a version of those exceptions inside the module using the original namespaces and Classes, e.g. \Magento\Framework\Exceptioin\NoSuchEntityException . 2. Use composer's scripts > post-install-and and scripts > post-update-cmd nodes to copy those exceptions to their original destinations like
• 1. Create a version of Those exceptions inside the module using the original namespaces and classes, e.g. \Magento\Framework\Exception\NoSuchEntityException . 2. Create a data patch copying those exceptions to their original destinations like vendor/magento/ framework /except Ion/ to replace original files.

When building a custom page we need to get a collection of data. To determine how many items are in this collection, the Adobe Commerce developer uses $collection->count() . This sometimes is slow and causes some delay.What is the reason?

• The collection is loaded first and then the number of items in the collection are returned.
• Before the collection is loaded, the framework performs left joins for all related attributes are added to the query.
• The framework internally uses SELECT count(-) and that is slower than loading the collection.

An Adobe Commerce Developer has created a new custom block extending \Magento\Framework\view\Element\AbstractBlock and has set the cache_lifetime data property for the block so that the output gets cached.The block is inserted into the sidebar, and displays differing content depending on which currency is being used. The developer finds that the block is displaying the same content for all currencies, depending on which currency is viewed first after the cache has been flushed.How would the developer resolve this?

• Implement the \Magento\Framework\DataObject\ldentityinterface class, as well as a getldentities() method, returning the current currency code.
• Override the getCacheKeyinfo() function adding the current currency code to the returned array.
• In the constructor, add the current currency code as a cache tag using $thismetaDataCcache_tags'', CURRENCY_CODE ]) .

A logistics company with an Adobe Commerce extension sends a list of reviewed shipment fees to all its clients every month in a CSV file. The merchant then uploads this CSV file to a 'file upload' field in admin configuration of Adobe Commerce.What are the two requirements to display the 'file upload' field and process the actual CSV import? (Choose two.)

• Create an observer that listens to the adminhtml_config_system_save_after
• Add a new field in etc.adminhtml/system.xml in my_Module with the file type:
• Add a custom backend model which extends /Magento\Framework\App\Config\Value and call afterSave:
• Add a new field in etc/adminhtml\system.xml in My_Module with a new custom type: