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Adobe AD0-E716 Exam Practice Questions (P. 5)

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Question #21
An Adobe Commerce Developer wishes to add an action to a pre-existing route, but does not wish to interfere with the functionality of the actions from the original route.
What must the developer do to ensure that their action works without any side effects in the original module?
  1. A
    In the route declaration, use the before or after parameters to load their module in before or after the original module.
  2. B
    Inject the new action into the standard router constructor's $actionList parameter.
  3. C
    Add the action into to the Controllers/front_name/ in My_Module, Magento will automatically detect and use it.

Correct Answer:
A

Question #22
An Adobe Commerce developer is asked to change the tracking level on a custom module for free downloading of pdf and images.
The module contains following models:
Vendor\FreeDownload\Model\Download
Vendor\FreeDownload\Model\DownloadPdf extends Vendor\FreeDownload\Model\Download
Vendor\FreeDownload\Model\DownloadImage extends Vendor\FreeDownload\Model\Download
Download class has a parameter for tracking_level.
How will the developer configure the tracking_level parameter, in di.xml, to have a value of 4 for Download class and all classes that extend Download?
  1. A
    Configure the parameter on a child class and add parent attribute as it will be propagated to siblings and parent.
  2. B
    Configure the parameter on the all child classes and set the parent attribute on one of them.
  3. C
    Configure the parameter on parent class, as it will be propagated on descendant classes.

Correct Answer:
C

Question #23
An Adobe Commerce developer adds a new extension attribute to add an array of values to the invoices that are fetched through the APIs.
After a while, their technical manager reviews their work and notices something wrong with the extension_attributes.xml file that the developer created in their module:

What is the problem with this xml snippet?
  1. A
    The extension attribute references the wrong interface, it should have referenced the Magento\Sales\Api\Data\InvoiceInterface.
  2. B
    The extension attribute references the repository instead of the interface it implements (Magento\Sales\Api\InvoiceRepositoryInterface).
  3. C
    The type is wrong, string[] should be replaced with array.

Correct Answer:
A

Question #24
An Adobe Commerce developer is creating a new console command to perform a complex task with a lot of potential terminal output. If an error occurs, they want to provide a message that has higher visibility than some of the other content that may be appearing, so they want to ensure it is highlighted in red (as seen in the screenshot):
How can they customize the appearance of this message?
  1. A
    Call the setDecorationType($type) method on the Symfony\Console\Output\OutputInterface object before calling writeln().
  2. B
    Wrap the output content in tags like <error>, <info>, or <comment>.
  3. C
    Throw a new CommandException with the desired message passed as an argument.

Correct Answer:
B

Question #25
An Adobe Commerce developer is tasked with creating a custom block that will be displayed on every page in the footer of the site.
After completing and optimizing the development, the developer notices that the block takes too much time to be generated on each page and decides to store it in the system cache after enabling it for all cache groups.
What would be the minimum requirement to achieve this?
  1. A
    Set a value for the cache_lifetime data property of the block.
  2. B
    Set a value for cache_key data property of the block.
  3. C
    Set values for both cache_lifetime and cache_key data properties of the block.

Correct Answer:
C

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