Free Access Adobe.AD0-E709.v2022-05-03.q64 Practice Test (Page 10)

Question 41

You have to install a new module on the production environment. All the module is adding a new product attribute. You enabled maintenance mode, copied the module code, run bin/magento setup:upgrade and disabled maintenance mode.
What two risks does this process pose? (Choose two.)

A.The new attribute will be invisible on the storefront until the cache is cleaned manually

B.It will void all active sessions

C.It will clean static assets from the pub/static folder

D.It will clean all caches which will cause a performance degradation

Question 42

What will be the result of calling the save() method on a collection instance?

A.It will save the select query execution result into the cache

B.It will loop over all items and call save () on each one

C.It will save the select query to the cache

D.It will save all items with one INSERT ... ON DUPLICATE KEY UPDATE query

Question 43

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?

A.Implement the \Magento\Framework\DataObject\ldentityinterface class, as well as a getldentities() method, returning the current currency code.

B.In the constructor, add the current currency code as a cache tag using $thismetaDataCcache_tags'', CURRENCY_CODE ]) .

C.Override the getCacheKeyinfo() function adding the current currency code to the returned array.

Question 44

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?

A.The framework internally uses SELECT count(-) and that is slower than loading the collection.

B.Before the collection is loaded, the framework performs left joins for all related attributes are added to the query.

C.The collection is loaded first and then the number of items in the collection are returned.

Question 45

An Adobe Commerce Developer is tasked with creating a custom form which submits its data to a (rontend controller. They have decided to create an action and have implemented the\magnto\Framework\App\Action|HttpPostInterface class, but are not seeing the data being persisted in the database, and an error message is being shown on the frontend after submission.
After debugging and ensuring that The data persistence logic is correct, what may be cause and solution to this?

A.Form key validation runs on all non-AJAX POST requests, the developer needs to add the form_key to their requests.

B.Magento does not allow POST requests to a frontend controller, therefore, the submission functionality will need to be rewritten as an API endpoint.

C.The developer forgot to implement a ValidatePostData() method in their action. They should implement this method: all non-validated POST data gets stripped out of the request and an error is thrown.

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Question 41

Question 42

Question 43

Question 44

Question 45

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