リアル試験問題AD0-E720問題集試験問題はここにある [2024年08月]
最新の2024年08月効果的なAD0-E720テスト問題を使って合格突破
質問 # 31
An 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?
- A. Vendor/theme/etc/images.xml
- B. Vendor/theme/etc/theme.xml
- C. Vendor/theme/etc/view.xml
正解：C
解説：
Explanation
To 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]
質問 # 32
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/OrangG/customer/viev^/frontend/web/templates/customer-info.phtml
- C. app/code/Orange/Customer/frontend/templates/customer-info.phtml
正解：A
解説：
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.
質問 # 33
An 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.)
- A.
- B.
- C.
- D.
正解：C、D
解説：
Explanation
To 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.
質問 # 34
An Adobe commerce developer wants to initialize a JavaScript component using a data attribute. Which option would initialize the JavaScript component?
- A. <nav data-mage-init='{"<component_name>": {...}}'></nav>
- B. <nav data-init='{"<component_name>": {...}}'></nav>
- C. <nav data-bind='{"<component_name>": {...}}'></nav>
正解：A
解説：
Explanation
To initialize a JavaScript component using a data attribute, the developer should use the data-mage-init attribute. This attribute allows the developer to specify the name and configuration of the component in a JSON format. For example:
<nav data-mage-init='{"Vendor_Module/js/nav": {"option1": "value1", "option2": "value2"}}'></nav> This will initialize the nav component from the Vendor_Module/js/nav file with the given options. The data-bind and data-init attributes are not valid and will not work, as they are not supported by Magento.
References: [JavaScript initialization], [data-mage-init]
質問 # 35
An Adobe Commerce developer created a new CMS page and set the page title as "My Custom Page". The page must be accessible at the URL /custom_page.
Which CMS page configuration do they set to make the page accessible at /custom_page?
- A. Under 'Content", they set the "Path" field as "custom_page".
- B. Under 'Search Engine Optimization", they set the "URL Key" field as "custom_page''.
- C. Under "Page in Websites", they set the "URL" field as "custom.page".
正解：B
解説：
Explanation
The URL Key field under the Search Engine Optimization section is used to specify the URL suffix for the CMS page. The developer can set it as "custom_page" to make the page accessible at /custom_page. The Path field under the Content section is used to specify the path to the template file that renders the CMS page content. The URL field under the Page in Websites section does not exist as a valid configuration option for CMS pages. References: [Adobe Commerce Developer Documentation], [Adobe Inc.]
質問 # 36
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. /override/theme/ExampleCorp/blank/catalog_product_view.xml
- B. /override/ExampleCorp/blank/catalog_product_view.xml
- C. /catalog_product_view.xml
正解：C
解説：
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]
質問 # 37
In which folder can a custom theme favicon be added?
- A. <your_theme_dir>/web/
- B. <your_theme_dir>/assets/images
- C. <your_theme_dir>/Magento_Theme/web/
正解：C
解説：
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]
質問 # 38
An Adobe Commerce developer wants to determine which template is rendering a specific element on the storefront. Which two methods can they use to turn on template hints? (Choose two.)
- A. In the Admin, navigate to system > Advanced > Template > Developer > Debug.
Set Enabled Template Path Hints for Storefront to Yes - B. On the command line, run the command; php bin/magento setup:enable-template-hints
- C. On the command line, run the command; php bin/magento dev:template-hints:enable
- D. In the Admin, navigate to Stores > Configuration > Advanced > Developer > Debug.
Set Enabled Template Path Hints for Storefront to Yes
正解：C、D
解説：
Explanation
Template hints are a useful tool for frontend developers to determine which template is rendering a specific element on the storefront. Template hints can be turned on using either of these two methods:
In the Admin Panel, navigate to Stores > Configuration > Advanced > Developer > Debug. Set Enabled Template Path Hints for Storefront to Yes On the command line, run the command; php bin/magento dev:template-hints:enable The other two options are incorrect because they do not exist as valid methods to turn on template hints.
References: Adobe Commerce Developer Documentation, Adobe Inc.
質問 # 39
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/_button.less
- B. lib/web/less/source/lib/_buttons.less
- C. lib/web/css/source/lib/_buttons.less
正解：C
解説：
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]
質問 # 40
An Adobe Commerce developer wants to completely overwrite _module. less of Orange_Checkout module, in their theme. Where would the developer place the file?
- A. Custom/theme/web/css/source/Orange_Checkout/_module.less
- B. Custom/theme/Orange_Checkout/frontend/web/css/_module.less
- C. Custom/theme/Orange_Checkout/web/css/source/_module.less
正解：C
解説：
Explanation
To completely overwrite _module.less of Orange_Checkout module in a custom theme, the developer should place the file in the Custom/theme/Orange_Checkout/web/css/source directory. This will override the default
_module.less file from the Orange_Checkout module and apply the custom styles to the theme. The Custom/theme/Orange_Checkout/frontend/web/css/_module.less and Custom/theme/web/css/source/Orange_Checkout/_module.less paths are not valid and will not work, as they do not follow the theme structure or the module naming convention. References: [Theme structure], [Module naming convention]
質問 # 41
An Adobe Commerce developer is working on a custom knockout Ul component and they need to add the text Happy Birthday. to be translated inside an .html template.
How would the developer add the text?
- A. <!-- ko il8n = 'Happy Birthday.' --><!-- /ko -->
- B. <span data-bind="il8n: Happy Birthday."></span>
- C. <span data-bind=Mil8n: 'Happy Birthday.'"></span>
正解：B
解説：
Explanation
To add the text Happy Birthday. to be translated inside an .html template, the developer should use the i18n binding. This binding allows the developer to specify the text as a string literal and translate it using the Magento translation mechanism. For example:
<span data-bind="i18n: 'Happy Birthday.'"></span>
This will render the text as it is, or translate it if a translation file is available for the current locale. The i18n binding can also accept variables or expressions as arguments. For example:
<span data-bind="i18n: name + ' Happy Birthday.'"></span>
This will render the text with the value of name variable, or translate it if a translation file is available for the current locale. The Mil8n and il8n bindings are not valid and will not work, as they are misspelled and do not match the knockout binding syntax. References: [Knockout bindings], [i18n binding]
質問 # 42
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
正解：C
解説：
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]
質問 # 43
An Adobe Commerce developer wants to create a new theme Vendor_Orange which extends from MagentoMuma. Which file is responsible for specifying the parent theme?
- A. registration.php
- B. view.xml
- C. theme.xml
正解：C
解説：
Explanation
The 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]
質問 # 44
An Adobe Commerce developer needs to debug an issue, where the path of the block template was invalid and the warning was added to a log file. Which mode are errors only written to a log file and not displayed?
- A. developer and default
- B. developer only
- C. default and production
正解：C
解説：
Explanation
The default and production modes are the modes where errors are only written to a log file and not displayed on the screen. This is done to prevent exposing sensitive information to users and attackers. The default mode is the mode that Adobe Commerce runs in by default if no other mode is specified. The production mode is the mode that Adobe Commerce runs in when it is deployed to a live site. The developer can use the following command to check the current mode:
bin/magento deploy:mode:show
The other two options are incorrect because they display errors on the screen as well as writing them to a log file. The developer mode is the mode that Adobe Commerce runs in when it is under development or testing.
The developer mode enables enhanced debugging and error reporting features. References: Adobe Commerce Developer Documentation, Adobe Inc.
質問 # 45
Which Ul component property is used for cross tracking property changes?
- A. links
- B. listens
- C. exports
正解：B
解説：
Explanation
The 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 menu
質問 # 46
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
正解：C
解説：
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.
質問 # 47
Which two steps are required to delete a manually installed theme? (Choose two.)
- A. Remove the theme record from the theme database table
- B. Remove the directory app/design/frontend/<VendorNAME/<ThemeName>
- C. Remove the theme using the theme:uninstall CLI command
- D. Disable the theme from the backend admin configuration
正解：A、B
解説：
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]
質問 # 48
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