Adobe AD0-E709 valid study dumps : Adobe Commerce Developer Expert

An Adobe Commerce Developer is tasked with writing an importer for a custom entity. After the work is complete and deployed, they start receiving complaints from their client that the importer does not work and fails every time they use it.
The developer realizes that the client is importing a file which does not match the format required for the importer to process correctly.
What two features would the developer add to this importer to prevent this? (Choose two.)

• A. Set up an example file and inject it into the ExampleFileProvider .
• B. Set $needColumnCheck = true; and add column names to the $validColumnNames class properties.
• C. Set up validation by implementing a validateRow method in their importer.
• D. Set up a try/catch in the importer to display a warning the file is not in the correct format.

You have configured an event observer to watch the checkout_submit_all_after event using this XML:

What is the required class definition for the event observer?

• A. Option A
• B. Option C
• C. Option B
• D. Option D

You want to remove a column introduced by a third-party extension via declarative schema.
How do you do that?

• A. Copy the etc/db_schema.xml file into your module and remove the column from your copy
• B. Create a SchemaPatch file and remove the column programmatically
• C. Modify the original etc/db_schema.xml file and remove the column from there
• D. Create the etc/db_schema.xml file and specify disable="true" on the column

You need to render a product attribute's raw value as a variable in a script tag. This value
will be used to initialize an application on the frontend.
How do you render this value?

• A. <?= $block->escapeJsVar($value) ?>
• B. <?= $block->renderJs($value) ?>
• C. <?= $block->escapeJs($value) ?>
• D. <?= $block->escapeHtml($value) ?>

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.)

• A. 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.
• B. 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 ofthe model.
  D)
  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.
• C. 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