Adobe AD0-E720 Exam Practice Test Instant Access

Question 1

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<span data-bind=Mil8n: 'Happy Birthday.''></span>

B<span data-bind='il8n: Happy Birthday.'></span>

C

Answer : B

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:

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:

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. Reference: [Knockout bindings], [i18n binding]

Question 2

An Adobe Commerce developer needs to create translations for the Orange/custom theme. Which directory would the developer place the translations?

AOrange/custom/etc

BOrange/custom/translations

COrange/custom/il8n

Answer : C

To create translations for a theme, the developer needs to place the translation files in the il8n directory of the theme. The translation files should have the format <language code>_<country code>.csv, such as en_US.csv or fr_FR.csv. The etc and translations directories are not used for storing translation files. Reference: [Translations overview], [Translate theme strings]

Question 3

An Adobe commerce developer wants to initialize a JavaScript component using a data attribute. Which option would initialize the JavaScript component?

A<nav data-bind='{'<component_name>': {...}}'></nav>

B<nav data-init='{'<component_name>': {...}}'></nav>

C<nav data-mage-init='{'<component_name>': {...}}'></nav>

Answer : C

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:

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. Reference: [JavaScript initialization], [data-mage-init]

Question 4

An Adobe Commerce developer has been asked to implement a custom font specifically for emails. The Adobe Commerce developer has already added their font into the file system.

Keeping best practice in mind, which two files would need to be implemented to show the custom font in the email?

A/Vendor/Theme/web/css/source/_extend.less
Use the ^import font function with the url of the custom font from the theme.
/Vendor/Theme/web/css/source/_email.less file

BAdd in the styles to target the elements that require being changed.
/vendor/Theme/web/css/source/_typography.less

CAdd in a lib-font-face mixin with the custom font name into the newly created file.

DAdd the font-family into the <head></head> of the email within the email template.

Answer : A, B

To implement a custom font specifically for emails, the developer needs to do the following steps:

Add the custom font file to the web/fonts directory of the custom theme.

Use the @import font function with the url of the custom font from the theme in the /Vendor/Theme/web/css/source/_extend.less file. This will import the custom font and make it available for use in other LESS files. For example:

@import font('custom-font', '@{baseDir}fonts/custom-font.ttf', 'truetype');

Add in the styles to target the elements that require being changed in the /Vendor/Theme/web/css/source/_email.less file. This file is used to define the styles for email templates. The developer can use the .lib-font-face() mixin to apply the custom font to specific selectors. For example:

.lib-font-face( @family-name: @custom-font, @font-path: '@{baseDir}fonts/custom-font', @font-weight: normal, @font-style: normal );

h1 { .lib-font-face( @family-name: @custom-font, @font-path: '@{baseDir}fonts/custom-font', @font-weight: normal, @font-style: normal ); }

The /vendor/Theme/web/css/source/_typography.less file is not suitable for implementing a custom font for emails, as it is used for defining global typography styles for web pages. The <head></head> tag is not used for adding fonts in email templates, as it is not supported by most email clients. Reference: [Custom fonts], [Email templates overview]

Question 5

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='vendor/general/enable' />

B<block name='block.name' template=''Vendor_Module: :template.phtml''ifconfig='module/general/enable' />

C<block name='block.name' template='Vendor_Module::template.phtml' ifconfig='general/module/enable' />

Answer : A

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:

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. Reference: [Layout instructions], [System configuration]

Question 6

An 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?

AOption A

BOption B

COption C

Answer : A

To 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 7

Which two steps are required to delete a manually installed theme? (Choose two.)

ARemove the theme using the theme:uninstall CLI command

BRemove the directory app/design/frontend/<VendorNAME/<ThemeName>

CDisable the theme from the backend admin configuration

DRemove the theme record from the theme database table

Answer : B, D

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 that are 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. Reference: [Delete a theme], [theme:uninstall]

Adobe AD0-E720 Adobe Commerce Front-End Developer Expert Exam Practice Test