This page was exported from Testking Free Dumps [ http://blog.testkingfree.com ] Export date:Thu Jan 16 18:49:30 2025 / +0000 GMT ___________________________________________________ Title: 2024 Valid AD0-E720 Exam Updates - 2024 Study Guide [Q31-Q50] --------------------------------------------------- 2024 Valid AD0-E720 Exam Updates - 2024 Study Guide AD0-E720 Certification - The Ultimate Guide [Updated 2024] Adobe AD0-E720 Exam Syllabus Topics: TopicDetailsTopic 1Distinguish use cases for different JavaScript components Identify the differences between client-side vs server-side compilation and how it worksTopic 2Describe Adobe Commerce theme folder structure and how it relates to folder based themes Demonstrate ability to extend existing themesTopic 3Demonstrate the usage of JS components using Layout XML Demonstrate the ability to initialize and call JavaScript componentsTopic 4Demonstrate the ability to implement different types of mixins Demonstrate the ability to customize Page Builder contentTopic 5Demonstrate the ability to style emails Demonstrate the ability to implement and customize LESS library components   QUESTION 31The merchant needs to create a new website, and is need modify a template the third party vendor’s, because the customer is different. The file is found in a module here: app/code/Vendor/Module Keep it simple in your mind!  Create another layout for the new website and configure new file.phtml.app/code/Vendor/Module/view/frontend/templates/file.phtml  Create a new module for extends layout.xml and include new file.phtml.app/code/Vendor/Module_Two/view/frontend/templates/file.phtml  Create a new theme, define a new website and customize in app/design.app/design/frontend/Custom/Theme/Vendor_Module/templates/file.phtml ExplanationThe 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]QUESTION 32An 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.)  $block->getData(‘view_model’)  $block->viewModel()  $block->getViewHodel()  $block->getData(‘viewModel) ExplanationTo access a view model within an existing block, the developer can use either of the following ways:$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”> <arguments> <argument name=”view_model” xsi:type=”object”>ExampleObjectModel/ExampleObjectModel</argument> </arguments> </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”> <arguments> <argument name=”viewModel” xsi:type=”object”>ExampleObjectModel/ExampleObjectModel</argument> </arguments> </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.QUESTION 33An Adobe Commerce developer needs to display a URL in the template. How would the variable $ur1be securely output in the template?  <?php echo $escaper->escapeUrl($url) ?>  <?php echo $escaper->escapeLink($url) ?>  <?php echo $escaper->escapeHtml($url) ?> ExplanationTo display a URL in a template securely, the developer should use the escapeUrl method of the escaper object.This method will encode any special characters in the URL that can be used for XSS attacks, such as &, <, >,“, ‘, etc. For example:<?php echo $escaper->escapeUrl($url) ?>The following methods are not suitable for displaying URLs and should not be used:<?php echo $escaper->escapeLink($url) ?>: This method is used for escaping link attributes, not URLs.It will encode any characters that are valid in URLs but invalid in HTML attributes, such as spaces, quotes, etc. For example:<?php echo $escaper->escapeLink(‘https://example.com/?q=hello world’) ?> // Output:https://example.com/?q=hello%20world<?php echo $escaper->escapeHtml($url) ?>: This method is used for escaping HTML content, not URLs. It will encode any characters that are valid in URLs but invalid in HTML content, such as &, <,>, etc. For example:<?php echo $escaper->escapeHtml(‘https://example.com/?q=<script>alert(“XSS”)</script>’) ?> // Output:https://example.com/?q=<script>alert(“XSS”)</script>QUESTION 34In which mode would the stylesheet customizations display immediately after you reload a page in a browser?  server- side compilation mode  less-side compilation mode  client-side compilation mode ExplanationIn 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]QUESTION 35An Adobe Commerce developer wants to create a new theme Vendor_Orange which extends from MagentoMuma. Which file is responsible for specifying the parent theme?  view.xml  registration.php  theme.xml ExplanationThe theme.xml file is responsible for specifying the parent theme of a custom theme. The file should contain the <parent> element with the value of the parent theme’s directory, such as<parent>MagentoMuma</parent>. The view.xml file is used to configure the theme’s images, fonts, and layout. The registration.php file is used to register the theme in the system. References: [Create a theme],[theme.xml]QUESTION 36An Adobe Commerce developer was asked to customize a JavaScript component which is written as a function. How would the developer extend the native JavaScript function?       ExplanationTo customize a JavaScript component that is written as a function, the developer can use option A. This option will use the prototype property of the function to extend its functionality and add new methods or properties.For example:function Component() { // Component logic }Component.prototype.customMethod = function() { // Custom method logic }; This will create a new method called customMethod on the prototype of the Component function, which can be accessed by any instance of the Component object. The developer can also override existing methods or properties on the prototype by reassigning them with new values.Option B is not correct because it will not extend the native JavaScript function, but create a new function that wraps the original function. This will not allow the developer to access or modify the properties or methods of the original function. Option C is not correct because it will not extend the native JavaScript function, but create a new object that inherits from the original function. This will not allow the developer to customize the original function itself, but only its instances.QUESTION 37An Adobe Commerce developer has been asked to move a block called country from the container sidebar to the container content, the block has to be the last child on the content container.Which layout instruction would be used to move the block?  <moveelement = “country”destination=”content” after=”-“/>  <move element=”country-element”destination=”content-element”/>  <move element=”country” destination=”content” after=”last-child”/> ExplanationTo move a block from one container to another, the developer needs to use the <move> layout instruction with the element attribute specifying the name of the block and the destination attribute specifying the name of the container. The after attribute can be used to position the block relative to other blocks in the same container.The value “-” means that the block will be placed after all other blocks, i.e., as the last child. The value“last-child” is not valid for the after attribute and will not work. The element and destination attributes should use the names of the blocks and containers, not their aliases or classes. References: [Layout instructions],[Move an element]QUESTION 38An 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?  /override/ExampleCorp/blank/catalog_product_view.xml  /override/theme/ExampleCorp/blank/catalog_product_view.xml  /catalog_product_view.xml ExplanationTo 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]QUESTION 39An Adobe Commerce developer needs to modify the width and height of all product images inside the theme Vendor/theme. What file inside the theme is responsible for these changes?  Vendor/theme/etc/images.xml  Vendor/theme/etc/view.xml  Vendor/theme/etc/theme.xml ExplanationTo modify the width and height of all product images inside a theme, the developer needs to edit the view.xml file inside the etc directory of the theme. The view.xml file contains the configuration for the theme’s images, fonts, and layout. The images.xml file does not exist by default and is not used for configuring images. The theme.xml file is used for specifying the parent theme and other metadata of the theme. References:[view.xml], [theme.xml]QUESTION 40An Adobe Commerce developer created a module called Orange_Customer. In customer information.Where would the developer place this file?  app/code/OrangG/customer/viev^/frontend/web/templates/customer-info.phtml  app/code/Orange/Customer/frontend/templates/customer-info.phtml  app/code/OrangG/Custon>Gr/viGw/frontGnd/templates/customGr-info.phtml ExplanationTo 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.phtmlThe 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.QUESTION 41An Adobe Commerce developer has just installed an extension via composer. When running, bin/magento module: status Vendor_Module, the status is returned as Module is disabled.Which two CLI commands need to be run to make the extension work properly? (Choose two.)  composer install  bin/magento setup:upgrade  composer update vendor/module  bin/magento module:enable Vendor_Module –clear-static-content ExplanationThe developer needs to run these two CLI commands to make the extension work properly:bin/magento module:enable Vendor_Module –clear-static-content This command enables the extension and clears any outdated static files that might interfere with its functionality.bin/magento setup:upgrade This command updates the database schema and data according to the extension’s requirements. The other two options are incorrect because they are not necessary to make the extension work properly. The composer install command installs all dependencies specified in the composer.json file, but it does not enable or update any extensions. The composer update vendor/module command updates an existing extension to its latest version, but it does not enable or upgrade it.QUESTION 42An 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?         ExplanationTo 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]QUESTION 43an Adobe commerce developer wants to override the core Magento Ul library dropdowns in your theme.Which is the correct way to achieve this?  /web/css/source/_dropdowns.less  lib/web/css/source/.dropdowns.less  /web/css/source/lib/.dropdowns.less ExplanationTo override the core Magento UI library dropdowns in a custom theme, the developer needs to create a file named _dropdowns.less in the /web/css/source directory of the theme. This file will override the default_dropdowns.less file from the lib/web/css/source/lib directory and apply the custom styles to the dropdown elements. The lib/web/css/source/_dropdowns.less and /web/css/source/lib/_dropdowns.less files are not valid and will not work, as they do not follow the theme structure or the naming convention. References:[Dropdowns], [Theme structure]QUESTION 44An Adobe Commerce developer has been asked to add text to an email template that supports translations.Which two options would they use during their implementation? (Choose two.)  {{translations “Lorem Ipsum is simply dummy text of the printing”}}  {{translations “%items items” items=”numltems”}}  {{trans “Lorem Ipsum is simply dummy text of the printing”}}  {{trans “%items items” items=”numltems”}} ExplanationTo add text to an email template that supports translations, the developer should use the {{trans}} directive with the text enclosed in double quotes. For example:{{trans “Lorem Ipsum is simply dummy text of the printing”}}This will render the text as it is, or translate it if a translation file is available for the current locale. If the text contains a variable, the developer should use a placeholder with a percent sign and pass the variable name as an argument. For example:{{trans “%items items” items=”numItems”}}This will render the text with the value of numItems replacing the %items placeholder, or translate it if a translation file is available for the current locale. The {{translations}}directive is not valid and will not work.References: [Translate email templates], [Email template syntax]QUESTION 45An Adobe Commerce developer needs to improve the time of first render of the pages. How would the developer achieve this?  Use the quick static files deployment strategy  Enable CSS critical path  Enable CSS file merging  Enable JavaScript minification ExplanationCSS 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.QUESTION 46An Adobe Commerce developer needs to pass JSON data to a JavaScript component while keeping XSS prevention strategies in mind.Which two options would the developer use? (Choose two.)         ExplanationTo pass JSON data to a JavaScript component while keeping XSS prevention strategies in mind, the developer should use the following options:Option A: Use the x-magento-init script tag with the data-mage-init attribute and the JSON.parse function to initialize the component with the JSON data. This option is secure because it does not use any HTML tags or attributes that can be exploited by XSS attacks.Option C: Use the text/x-magento-init script tag with the type attribute and the JSON.parse function to initialize the component with the JSON data. This option is secure because it does not use any HTML tags or attributes that can be exploited by XSS attacks.The following options are not secure and should not be used:Option B: Use the script tag with the type attribute and the escapeHtmlAttr function to initialize the component with the JSON data. This option is not secure because it uses the escapeHtmlAttr function, which is meant for escaping HTML attributes, not JSON data. This function can introduce double quotes in the JSON data, which can break the JSON syntax and cause errors.Option D: Use the script tag with the type attribute and the escapeJsQuote function to initialize the component with the JSON data. This option is not secure because it uses the escapeJsQuote function, which is meant for escaping JavaScript strings, not JSON data. This function can introduce backslashes in the JSON data, which can break the JSON syntax and cause errors.QUESTION 47An Adobe Commerce developer has found following code:After compiling the .less file into a .ess file, what will be the results of the code above?       ExplanationAfter 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]QUESTION 48An Adobe Commerce developer needs to add a conditional static note depending on whether the order type is virtual or not. Which option would the developer use to add the conditional text in the email template?       ExplanationOption B is the correct way to add a conditional static note depending on whether the order type is virtual or not in the email template. Option B uses the {{trans}} directive to translate the text and the {{depend}} directive to check the value of the order.is_virtual variable. If the order is virtual, the text “Shipping not required.” will be displayed. Option A and Option C are incorrect because they use the wrong syntax for the{{trans}} and {{depend}} directives. Option A uses curly braces instead of parentheses for the {{trans}} directive and does not use quotes for the text. Option C uses parentheses instead of curly braces for the{{depend}} directive and does not use a dot to access the order.is_virtual variable.QUESTION 49Which Ul component property is used for cross tracking property changes?  exports  listens  links ExplanationThe listens property is used for cross tracking property changes in the UI component. The listens property defines the dependencies between the properties of different UI components. It allows one UI component to listen to the changes of another UI component’s property and react accordingly. For example, the listens property can be used to update the value of a text field based on the selection of a dropdown menuQUESTION 50Which two steps are required to delete a manually installed theme? (Choose two.)  Remove the theme using the theme:uninstall CLI command  Remove the directory app/design/frontend/<VendorNAME/<ThemeName>  Disable the theme from the backend admin configuration  Remove the theme record from the theme database table ExplanationTo 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. 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