Question # 1
| 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 only
| | B. default and production
| | C. developer and default
|
B. default and production
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.
Question # 2
| 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///layouts. xml
| | B. app/design/frontend///Magento_Theme/layouts.xnil
| | C. app/design/frontend///Magento_Theme/layout/layouts.xml
|
C. app/design/frontend///Magento_Theme/layout/layouts.xml
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///Magento_Theme/layout directory. The layouts.xml file should contain the 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///layouts.xml and app/design/frontend///Magento_Theme/layouts.xml files are not valid and will not work.
References: [Create a new page layout], [layouts.xml]
Question # 3
| An Adobe Commerce developer is trying to remove a block using the
| | A. US6 | | B. Use7 | | C. Use8 |
A. US6
Explanation:
To remove a block using layout XML, the developer should use the tag with the name attribute specifying the name of the block and the remove attribute set to true.
For example:
This will remove the block from the layout and prevent it from rendering. The tag is not valid and will cause an error. The name attribute should not include the module name, as it is not part of the block name. The delete attribute is not valid and will not work.
Question # 4
| When using Grunt, which CLI command is used to track changes in the source files and recompiles CSS files? | | A. grunt start | | B. grunt watch
| | C. grunt less
|
B. grunt watch
Explanation:
The grunt watch command is used to track changes in the source files and recompiles CSS files automatically. This command is useful for frontend development as it allows the developer to see the changes in real time without manually running other commands. The grunt watch command can be run with or without parameters to specify the theme and locale. For example, to track changes for the Vendor/Orange theme and the en_US locale, the developer can use:
grunt watch --theme=Vendor/Orange --locale=en_US
The other two options are incorrect because they do not track changes in the source files. The grunt start command is used to register themes and clear caches before running other commands. The grunt less command is used to compile LESS files to CSS files for a specific theme and locale.
References: Adobe Commerce Developer Documentation, Adobe Inc.
Question # 5
| An Adobe Commerce developer needs to display a URL in the template. How would the variable $ur1be securely output in the template? | | A. escapeUrl($url) ?>
| | B. escapeLink($url) ?> | | C. escapeHtml($url) ?>
|
A. escapeUrl($url) ?>
Explanation:
To display a URL in a template securely, the developer should use the escapeUrl method of the escaper object. This method will encode any special characters in the URL that can be used for XSS attacks, such as &, <, >, ", ', etc. For example:
escapeUrl($url) ?>
The following methods are not suitable for displaying URLs and should not be used:
escapeLink($url) ?>: This method is used for escaping link attributes, not URLs. It will encode any characters that are valid in URLs but invalid in HTML attributes, such as spaces, quotes, etc. For example:
escapeLink(‘https://example.com/?q=hello world’) ? > // Output: https://example.com/?q=hello%20world
escapeHtml($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:
escapeHtml(‘https://example.com/?q= ’) ?> // Output: https://example.com/?q=
Question # 6
| An 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.) | | A. composer install
| | B. bin/magento setup:upgrade
| | C. composer update vendor/module
| | D. bin/magento module:enable Vendor_Module --clear-static-content
|
B. bin/magento setup:upgrade
D. bin/magento module:enable Vendor_Module --clear-static-content
Explanation:
The 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 # 7
| When customizing layout XML in a child theme, which method correctly removes a block that is declared in a parent layout? | | A.
| | B.
| | C.
| | D. |
B.
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