Adobe Exam AD0-E716 Topic 12 Question 52 Discussion

Actual exam question for Adobe's AD0-E716 exam

Question #: 52
Topic #: 12

An Adobe Commerce developer is tasked to add a file field to a custom form in the administration panel, the field must accept only .PDF files with size less or equal than 2 MB. So far the developer has added the following code within the form component xml file, inside the fieldset node:

How would the developer implement the validations?

Add the Validations Within the HyVendor\MyModule\Controller\Adminhtml\CustomEntity\UploadPdf Controller

Add a virtual type forMyvendor\MyModuie\Modei\customPdfupioader specifying the aiiowedExtensions and the maxFiiesize for the constructor, within the module's di.xmi:

Add the following code inside the node:

AOption A

BOption B

COption C

Show Suggested Answer

Suggested Answer: B

The developer can add a virtual type for MyvendorMyModuieModeicustomPdfupioader specifying the aiiowedExtensions and the maxFiiesize for the constructor, within the module's di.xmi. This way, the developer can reuse the existing file uploader class and customize it for the specific field without modifying the core code. Verified Reference: [Magento 2.4 DevDocs] [Magento Stack Exchange]

by Virgie at Oct 31, 2025, 11:22 AM

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William

3 hours ago

I'm leaning towards Option B as well. Putting the validation in the DI configuration keeps the form component clean and reusable. Plus, it allows you to easily change the validation rules in one place if needed.

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Jerry

6 days ago

Option B seems like the way to go. Encapsulating the validation logic in a custom uploader class and configuring it in the DI makes the most sense to me. That way the form component can just use the uploader without having to worry about the validation details.

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Mattie

11 days ago

I'm a bit confused by the different options. Option A seems to put the validation logic in the controller, which doesn't seem quite right for a form field. Option C looks interesting, but I'm not sure if that's the best place to handle the validation.

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Luis

17 days ago

I think Option B looks the most straightforward. Adding a virtual type to specify the allowed extensions and max file size seems like a clean way to handle the validation.

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