[UPDATED] Adobe AD0-E720 Certification Exam Questions
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Adobe AD0-E720 Exam Syllabus Topics:
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NEW QUESTION # 23
By creating a Custom_Module, an Adobe Commerce Developer has implemented a new Page Builder viewport for tablet devices but the viewport's tablet selector button is missing.
The button .svg has been properly added to the path: CustomJ^odule/web/css/images/switcher/switcher-tablet
.svg. How the developer would implement the viewport button icon?
A)
By setting the node icon in the theme's etc/view.xml file for the respective viewport configuration data.
B)
By setting the node button-image in the theme's etc/view.xml file for the respective viewport configuration data.
C)By adding the node image in the theme's etc/viewport.xml file for the respective viewport configuration data.
D)
By adding the node image in the theme's etc/viewport.xml file for the respective viewport configuration data.
- A. Option A
- B. Option B
- C. Option D
- D. Option C
Answer: D
Explanation:
Explanation
Option C is the correct way to implement the viewport button icon. The image node specifies the path to the
.svg file relative to the web/css directory of the module. Option A is incorrect because there is no icon node in the viewport configuration data. Option B is incorrect because there is no button-image node in the viewport configuration data. Option D is incorrect because the image node value should not include the web/css part of the path.https://api.flutter.dev/flutter/widgets/PageView-class.html
NEW QUESTION # 24
In which mode would the stylesheet customizations display immediately after you reload a page in a browser?
- A. client-side compilation mode
- B. less-side compilation mode
- C. server- side compilation mode
Answer: A
Explanation:
Explanation
In client-side compilation mode, the stylesheet customizations will display immediately after reloading a page in a browser. This is because in this mode, the LESS files are compiled into CSS files by the browser using JavaScript. This mode is useful for development and debugging purposes, as it allows quick changes and previews of the styles. However, this mode is not recommended for production, as it can affect the performance and compatibility of the site. The other modes, server-side compilation and LESS compilation, require running commands or tools to compile the LESS files into CSS files on the server side, which can take some time and delay the display of the customizations. References: [Compilation modes], [Compile LESS]
NEW QUESTION # 25
An Adobe Commerce developer wants to create symlinks for the frontend theme named Vendor/Orange using a CSS file: <magento_root>/pub/static/frontend/Vendor/Orange/en_US/css/styles-l.css during development.
Which CLI command would the developer use to create symlinks for the en_US locale?
- A. bin/magento dev:theme:deploy --locale="en__US" --theme="Vendor/Orange" css/styles-1
- B. bin/magento deploy:mode:set theme --locale="en_US" --area="frontend" css/styles-1
- C. bin/magento dev:source-theme:deploy --type=Mless" --locale="en_US" --theme="Vendor/Orange" css/styles-1
Answer: C
Explanation:
Explanation
The bin/magento dev:source-theme:deploy command is used to create symlinks for frontend theme files during development. This command allows the developer to modify source files without running static content deployment every time. The developer can use parameters to specify the type, locale, theme, and file names for creating symlinks. For example, to create symlinks for a CSS file named styles-l.css for the Vendor/Orange theme and the en_US locale, the developer can use:
bin/magento dev:source-theme:deploy --type=less --locale=en_US --theme=Vendor/Orange css/styles-l The other two options are incorrect because they do not create symlinks for frontend theme files. The bin/magento dev:theme:deploy command is used to register themes with Magento and clear caches. The bin/magento deploy:mode:set command is used to change the application mode. References: Adobe Commerce Developer Documentation, Adobe Inc.
NEW QUESTION # 26
What is the difference between styles-l.less and styles-m.less ?
- A. styles-i.less is used to generate basic and mobile-specific styles and stytes-m.less is used to generate desktop-specific styles.
- B. styles-i.less is used to generate desktop-specific styles and stytes-m.less is used to generate basic and mobile-specific styles.
- C. styles-i.less is used to generate desktop-specific styles and stytes-m.less is used to generate only mobile-specific styles.
Answer: B
Explanation:
Explanation
The styles-l.less and styles-m.less files are two main LESS files that are used to generate CSS files for different devices and screen sizes. The styles-l.less file is used to generate styles-l.css, which contains desktop-specific styles that are applied only when the screen width is greater than 768px. The styles-m.less file is used to generate styles-m.css, which contains basic and mobile-specific styles that are applied for all devices and screen sizes. The other options are not correct and do not reflect the purpose of these files. References:
[Stylesheets], [Responsive web design]
NEW QUESTION # 27
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?
- A. /catalog_product_view.xml
- B. /override/ExampleCorp/blank/catalog_product_view.xml
- C. /override/theme/ExampleCorp/blank/catalog_product_view.xml
Answer: A
Explanation:
Explanation
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]
NEW QUESTION # 28
An Adobe Commerce developer needs to apply a Knockout binding to show content under certain conditions.
Which two syntaxes would achieve this? (Choose two.)
- A.
- B.
- C.
- D.
Answer: C,D
Explanation:
Explanation
Option A and Option C are both valid ways to apply a Knockout binding to show content under certain conditions. Option A uses the visible binding, which sets the display style of the element to none if the value is false. Option C uses the if binding, which removes or inserts the element from the DOM based on the value.
Option B and Option D are incorrect because they use invalid syntax for Knockout bindings. Option B uses a colon instead of an equal sign to assign the value, and Option D uses a single quote instead of a double quote to enclose the value.
https://knockoutjs.com/documentation/binding-syntax.html
https://knockoutjs.com/documentation/binding-context.html
NEW QUESTION # 29
An Adobe Commerce developer wants to override the template assigned to a block named existing, product, block. This relationship is defined in the catalog_product_view. xml layout in the Magento_Catalog module.
They cannot simply override the file in their theme, as this change is part of a feature that is being released to the marketplace as a module called "Orange_CustomProduct".
The developer has already created the desired template at app/code/Orange/CustomProduct/view/f rontend/templates/custom-product-block.phtml.
What can they add to app/code/Orange/CustomProduct/view/f rontend/layout/catalog_product_view. xml in their module to accomplish this?
- A.
- B.
- C.
- D.
Answer: A
Explanation:
Explanation
To override the template assigned to a block in a module, the developer needs to use the <referenceBlock> 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:
<referenceBlock name="existing.product.block"
template="Orange_CustomProduct::custom-product-block.phtml"/>
Option A is not valid because it uses <block> instead of <referenceBlock>, which would create a new block instead of referencing an existing one. Option C is not valid because it uses <argument> instead of
<template>, which would not change the template of the block. Option D is not valid because it uses an incorrect syntax for the template attribute, which should use two colons instead of a slash. References: [Layout instructions], [Override templates and layout files]
NEW QUESTION # 30
An Adobe Commerce developer is customizing buttons for a custom theme that inherits Magento/blank theme and needs to override the default values. Where would the default values for the buttons be located?
- A. lib/web/css/source/lib/_buttons.less
- B. lib/web/less/source/lib/_buttons.less
- C. lib/web/css/source/lib/_button.less
Answer: A
Explanation:
Explanation
To find the default values for the buttons, the developer needs to look at the lib/web/css/source/lib/_buttons.less file. This file contains various variables, mixins, and styles for defining and customizing buttons. The developer can override these values in their custom theme by using the
.lib-button() mixin or by creating their own mixins or classes. For example:
lib-button( @_button-selector, @_button-type, @_button-shape, @_button-color, @_button-background,
@_button-border, @_button-text-transform, @_button-box-shadow, @_button-hover-color,
@_button-hover-background, @_button-hover-border, @_button-hover-box-shadow ); The lib/web/less/source/lib/_buttons.less and lib/web/css/source/lib/_button.less files are not valid and do not exist. References: [Buttons], [Magento UI library]
NEW QUESTION # 31
An Adobe Commerce developer wants to remove the default Wishlist and Compare Products blocks on a category page with layered navigation Where would this modification be placed, assuming the developer only wants to make this change?
- A. app/design/frontend/Vendor/Theme/Magento_Layered.Navigation/layout/catalog_category_view_type_lay
- B. app/design/frontend/Vendor/Theme/Magento_Catalog/layout/catalog_category_view.xml
- C. app/design/frontend/Vendor/Theme/Magento_LayeredNavigation/layout/override/catalog_category_view_
Answer: A
Explanation:
Explanation
To remove the default Wishlist and Compare Products blocks on a category page with layered navigation, the developer should place the modification in the app/design/frontend/Vendor/Theme/Magento_LayeredNavigation/layout/catalog_category_view_type_layered.x file. This file is specific to the category pages with layered navigation and will override the default layout file from the Magento_LayeredNavigation module. The modification should use the <referenceBlock> tag with the name attribute specifying the name of the block and the remove attribute set to true. For example:
<referenceBlock name="catalog.compare.sidebar" remove="true"/> <referenceBlock name="wishlist_sidebar" remove="true"/> The app/design/frontend/Vendor/Theme/Magento_LayeredNavigation/layout/override/catalog_category_view_type_ file is not valid and will not work, as it is not a valid override path. The app/design/frontend/Vendor/Theme/Magento_Catalog/layout/catalog_category_view.xml file is not specific to the category pages with layered navigation and will affect all category pages. References: [Layout override],
[Remove an element]
NEW QUESTION # 32
Where are the Magento Ul library LESS files located?
- A. Magento_Lib/web/css/source
- B. lib/web/css/source/lib
- C. Magento_Ui/web/css/source/
Answer: A
Explanation:
Explanation
This directory contains various LESS files that define variables, mixins, functions, and styles for common UI elements and components. The Magento_Ui/web/css/source and lib/web/css/source/lib directories are not valid and do not contain the Magento UI library LESS files. References: [Magento UI library], [Magento UI library source files]
NEW QUESTION # 33
An Adobe Commerce developer wants to apply a knockout binding to a <div> to run a function, onClick(), when it's clicked. Which two solutions would the developer use to achieve this? (Choose two.)
- A. <div data-bind="click: onClick"></div>
- B. <div><!-- ko click: 'onClick' --> <!-- /ko --></div>
- C. <div click=,,onClick"X/div>
- D. <div data-bind="click: onClick()"><x/div>
Answer: A,D
Explanation:
Explanation
To apply a knockout binding to a <div> to run a function, onClick(), when it's clicked, the developer can use either of the following solutions:
A: <div data-bind="click: onClick()"></div>: This solution will use the click binding to execute the onClick() function as an expression when the <div> 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: <div data-bind="click: onClick"></div>: This solution will use the click binding to execute the onClick function as a reference when the <div> 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: <div><!-- ko click: 'onClick' --><!-- /ko --></div>: 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: <div click="onClick"></div>: 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.
NEW QUESTION # 34
An Adobe Commerce Developer is adding a new page layout to the theme directory within a custom theme.
Which file needs to be created to register the new page layout?
- A. app/design/frontend/<VendorName>/<ThemeName>/Magento_Theme/layouts.xnil
- B. app/design/frontend/<VendorName>/<ThemeName>/layouts. xml
- C. app/design/frontend/<VendorName>/<ThemeName>/Magento_Theme/layout/layouts.xml
Answer: C
Explanation:
Explanation
To register a new page layout in a custom theme, the developer needs to create a layouts.xml file in the app/design/frontend/<VendorName>/<ThemeName>/Magento_Theme/layout directory. The layouts.xml file should contain the <layout> element with the id, label, and file attributes. The id attribute is used to reference the layout in other layout files, the label attribute is used to display the layout name in the admin panel, and the file attribute is used to specify the path to the layout file relative to the web directory of the theme. The app/design/frontend/<VendorName>/<ThemeName>/layouts.xml and app/design/frontend/<VendorName>/<ThemeName>/Magento_Theme/layouts.xml files are not valid and will not work. References: [Create a new page layout], [layouts.xml]
NEW QUESTION # 35
An Adobe Commerce developer is extending a theme from Magento\blank and wants to override parent styles.
Which file does the developer need to change to override the parent theme styles?
- A. web/css/source/_extend.less
- B. web/css/source/_theme. less
- C. web/css/source/_extends.less
Answer: A
Explanation:
Explanation
To override the parent theme styles, the developer needs to change the web/css/source/_extend.less file in the child theme. This file is used to import and extend the parent theme styles without modifying the original files.
The developer can use the @import directive to import the parent theme styles and then use the .lib-css() mixin to override the CSS properties. For example:
@import 'source/_extend.less'; // Import parent theme styles .lib-css(color, red); // Override color property The web/css/source/_extends.less and web/css/source/_theme.less files are not valid and will not work, as they do not follow the theme structure or the naming convention. References: [Theme inheritance], [Extend parent theme styles]
NEW QUESTION # 36
An Adobe Commerce developer wants to initialize a JS component via Layout XML in custom reference block test. component. Which Layout XML instruction would be used to initialize this JS component?
- A.
- B.
- C.
Answer: A
Explanation:
Explanation
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.
https://developer.adobe.com/commerce/frontend-core/
https://experienceleague.adobe.com/docs/certification/program/technical-certifications/ac/ac-expert/ac-e-fedevel
NEW QUESTION # 37
An Adobe Commerce developer wants to create a sticky widget.
How would the widget be initialized using the data-mage-init attribute?
- A.
- B.
- C.
Answer: B
Explanation:
Explanation
Option B is the correct way to initialize a widget using the data-mage-init attribute. The attribute value should be a JSON object with the widget name as the key and the widget options as the value. Option A is incorrect because it uses a string instead of an object for the attribute value. Option C is incorrect because it uses a colon instead of a comma to separate the widget name and the options.
NEW QUESTION # 38
Which two steps are required to delete a manually installed theme? (Choose two.)
- A. Disable the theme from the backend admin configuration
- B. Remove the directory app/design/frontend/<VendorNAME/<ThemeName>
- C. Remove the theme record from the theme database table
- D. Remove the theme using the theme:uninstall CLI command
Answer: B,C
Explanation:
Explanation
To delete a manually installed theme, the developer needs to remove the theme directory from the app/design/frontend directory and also delete the corresponding record from the theme table in the database.
The theme:uninstall CLI command is only used for deleting themes thatare installed as Composer packages.
Disabling the theme from the backend admin configuration does not delete the theme files or records, but only makes it unavailable for use. References: [Delete a theme], [theme:uninstall]
NEW QUESTION # 39
An Adobe Commerce developer created a module called Orange_Customer. In customer information.
Where would the developer place this file?
- A. app/code/OrangG/Custon>Gr/viGw/frontGnd/templates/customGr-info.phtml
- B. app/code/Orange/Customer/frontend/templates/customer-info.phtml
- C. app/code/OrangG/customer/viev^/frontend/web/templates/customer-info.phtml
Answer: A
Explanation:
Explanation
To place a template file for a custom module, the developer should follow this path pattern:
app/code/<Vendor>/<Module>/view/<Area>/templates/<Template>
In this case, the vendor name is Orange, the module name is Customer, the area is frontend, and the template name is customer-info.phtml. Therefore, the correct path is:
app/code/Orange/Customer/view/frontend/templates/customer-info.phtml
The following paths are not correct and will not work:
app/code/Orange/customer/view/frontend/web/templates/customer-info.phtml: This path is incorrect because it uses web instead of templates, which is used for storing web assets like CSS, JS, and images, not template files.
app/code/Orange/Customer/frontend/templates/customer-info.phtml: This path is incorrect because it misses the view directory, which is required for separating frontend and backend templates.
NEW QUESTION # 40
An Adobe Commerce developer needs to improve the time of first render of the pages. How would the developer achieve this?
- A. Use the quick static files deployment strategy
- B. Enable CSS file merging
- C. Enable CSS critical path
- D. Enable JavaScript minification
Answer: C
Explanation:
Explanation
CSS critical path is a feature that improves the time of first render of the pages by inlining the CSS rules that are required to render the above-the-fold content of the page. This reduces the number of requests and bytes that need to be downloaded before the page is rendered. CSS critical path can be enabled in the Admin Panel by navigating to Stores > Configuration > Advanced > Developer > CSS Settings and setting Enable CSS Critical Path to Yes. References: Adobe Commerce Developer Documentation, Adobe Inc.
NEW QUESTION # 41
In which folder can a custom theme favicon be added?
- A. <your_theme_dir>/web/
- B. <your_theme_dir>/Magento_Theme/web/
- C. <your_theme_dir>/assets/images
Answer: B
Explanation:
Explanation
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.
References: [Add a favicon], [Theme structure]
NEW QUESTION # 42
An Adobe Commerce developer has created a system configuration field:
Using Layout XML, how can the visibility of a block be controlled by a system configuration?
- A. <block name="block.name" template=''Vendor_Module:
:template.phtml"ifconfig="module/general/enable" /> - B. <block name="block.name" template="Vendor_Module::template.phtml="
ifconfig="vendor/general/enable" /> - C. <block name="block.name" template="Vendor_Module::template.phtml"
ifconfig="general/module/enable" />
Answer: B
Explanation:
Explanation
To control the visibility of a block using a system configuration, the developer should use the ifconfig attribute in the <block> tag. The ifconfig attribute should specify the path to the system configuration field that determines whether the block is visible or not. For example:
<block name="block.name" template="Vendor_Module::template.phtml" ifconfig="vendor/general/enable" /> This will render the block only if the vendor/general/enable system configuration field is set to true. The module/general/enable and general/module/enable paths are not valid and will not work, as they do not match the system configuration field defined in the image. References: [Layout instructions], [System configuration]
NEW QUESTION # 43
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