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Unlock Your Adobe Commerce Potential: Master AD0-E720 with Confidence

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Question 1

An Adobe Commerce developer wants to apply a knockout binding to a

to run a function, onClick(), when it's clicked. Which two solutions would the developer use to achieve this? (Choose two.)


Correct : A, C

To apply a knockout binding to a

to run a function, onClick(), when it's clicked, the developer can use either of the following solutions:

A)

: This solution will use the click binding to execute the onClick() function as an expression when the
is clicked. The function will be called with the current binding context as the first parameter and the event object as the second parameter.

C)

: This solution will use the click binding to execute the onClick function as a reference when the
is clicked. The function will be called with the current binding context as the first parameter and the event object as the second parameter.

The following solutions are not valid and will not work:

B)

<!-- ko click: 'onClick' --><!-- /ko -->
: This solution will use the virtual element syntax to apply the click binding, but it will pass a string literal instead of a function expression or reference. This will cause an error, as the click binding expects a function value.

D)

: This solution will use a custom attribute instead of a data-bind attribute to apply the click binding. This is not supported by knockout and will not have any effect.


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Question 2

An Adobe Commerce developer wants to override the following Layout XML file in the theme ExampleCorp/orange.

app/design/frontend/ExampleCorp/blank/Vendor_Module/layout/catalog_product_view.xml

What path would the developer use inside the layout directory of the theme to override the file?


Correct : C

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. Reference: [Layout instructions], [Override templates and layout files]


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Question 3

An Adobe Commerce developer is using a view model within an existing block:

What are two ways to access the view model class in the template? (Choose two.)


Correct : A, D

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:

<referenceBlock name=''blog_posts_list''> ExampleObjectModel/ExampleObjectModel </referenceBlock>

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:

<referenceBlock name=''blog_posts_list''> ExampleObjectModel/ExampleObjectModel </referenceBlock>

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.


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Question 4

An Adobe Commerce developer needs to alias URLs and third party libraries inside a require js-config.js file. Which configuration would the developer use?

A)

B)

C)


Correct : B

To alias URLs and third party libraries inside a requirejs-config.js file, the developer should use the paths configuration option. This option allows the developer to map module names to URLs or paths relative to the baseUrl. For example:

var config = { paths: { 'jquery': 'https://code.jquery.com/jquery-3.6.0.min', 'custom': 'Vendor_Module/js/custom' } };

This will map the module name 'jquery' to the URL of the jQuery library and the module name 'custom' to the path of the custom module. The developer can then use these module names in other modules or files without specifying the full URL or path.

Option A is not correct because it uses the shim configuration option, which is used to define dependencies and exports for non-AMD modules, not to alias URLs or paths. Option C is not correct because it uses the map configuration option, which is used to map module names to other module names for specific contexts, not to alias URLs or paths. Reference: [RequireJS configuration], [RequireJS paths]


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Question 5

In which folder can a custom theme favicon be added?


Correct : B

The favicon can be added to the <your_theme_dir>/Magento_Theme/web/ directory of a custom theme. The favicon should have the name favicon.ico and replace the default one from the Magento_Theme module. The <your_theme_dir>/web/ directory is used for storing web assets that are not specific to any module. The <your_theme_dir>/assets/images directory does not exist by default and is not used for storing favicons. Reference: [Add a favicon], [Theme structure]


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