AD0-E720 Adobe Commerce Front-End Developer Expert Free Practice Exam Questions (2025 Updated)

Option C is the correct way to initialize a jQuery widget in a JavaScript file. The widget name should be prefixed with “mage” and the options should be passed as an object literal. Option A is incorrect because it uses a dot notation instead of a colon to separate the widget name and the options. Option B is incorrect because it uses a string instead of an object literal to pass the options.

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To access a view model within an existing block, the developer can use either of the following ways:

$block->getData(‘view_model’): This method will return the view model object that is assigned to the argument name “view_model” in the layout XML file. For example:

ExampleObjectModel/ExampleObjectModel

In the template file, the developer can access the view model object by using:

$block->getData(‘view_model’)

$block->getData(‘viewModel’): This method will return the view model object that is assigned to the argument name “viewModel” in the layout XML file. For example:

ExampleObjectModel/ExampleObjectModel

In the template file, the developer can access the view model object by using:

$block->getData(‘viewModel’)

The following methods are not valid and will not work:

$block->viewModel(): This method does not exist and will cause an error.

$block->getViewHodel(): This method is misspelled and will cause an error.

To override a layout XML file from a parent theme, the developer just needs to place the modified file in the same path relative to the layout directory of the child theme. In this case, the file would be app/design/frontend/ExampleCorp/orange/Vendor_Module/layout/catalog_product_view.xml. The override directory is not used for overriding layout files, but for overriding templates and web assets. References: [Layout instructions], [Override templates and layout files]

Option A is the correct way to initialize a JS component via Layout XML in a custom reference block. The x-magento-init tag is used to specify the component name and the options. Option B is incorrect because it uses the data-mage-init attribute, which is only valid for HTML elements. Option C is incorrect because it uses the x-magento-component tag, which is deprecated and should not be used.

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After compiling the .less file into a .css file, the result of the code above will be option B. This is because the .less file uses a mixin called .animation() that takes two parameters: the name of the animation and the duration. The mixin defines a set of vendor-prefixed properties for the animation and assigns them the values of the parameters. For example:

animation(@name; @duration) { -webkit-animation-name: @name; -webkit-animation-duration: @duration; -moz-animation-name: @name; -moz-animation-duration: @duration; animation-name: @name; animation-duration: @duration; }

When the mixin is called with the values “fade” and “2s”, it will generate the following CSS code:

-webkit-animation-name: fade; -webkit-animation-duration: 2s; -moz-animation-name: fade; -moz-animation-duration: 2s; animation-name: fade; animation-duration: 2s;

Option A is not correct because it does not use the vendor prefixes for the animation properties. Option C is not correct because it uses the wrong values for the animation name and duration. References: [LESS Mixins], [CSS Animations]

The best way to customize a template file from a third-party module is to create a new theme that inherits from the parent theme and override the template file in the app/design/frontend/Custom/Theme/Vendor_Module/templates directory. This way, the customization is isolated from the original module and can be applied to a specific website or store view. Creating another layout file or a new module would not be as simple or flexible as creating a new theme. References: Frontend development guide, [Create a theme], [Theme inheritance]

To override the template assigned to a block in a module, the developer needs to use the layout instruction with the name attribute specifying the name of the block and the template attribute specifying the path to the new template file. In this case, the code would be:

Option A is not valid because it uses instead of , which would create a new block instead of referencing an existing one. Option C is not valid because it uses instead of