Adobe AD0-E724 Real Exam Questions Test Engine Dumps Training With 148 Questions
AD0-E724 Actual Questions Answers PDF 100% Cover Real Exam Questions
NEW QUESTION # 33
The value of a product attribute in the Adobe Commerce system needs to have a different format before it is displayed. Which attribute model class is responsible for this?
- A. Source
- B. Frontend
- C. Backend
Answer: B
Explanation:
The frontend attribute model class is responsible for formatting the value of a product attribute before it is displayed on the storefront. This class can implement methods such as getValue, getLabel, getInputType, and getOptionText to modify the attribute value.
The backend attribute model class is responsible for saving and loading the attribute value to and from the database. The source attribute model class is responsible for providing the list of options for an attribute.
Verified References: [Adobe Commerce Developer Guide - Attribute models] In Adobe Commerce (Magento 2), the formatting of product attribute values before they are displayed is handled by the attribute's frontend model. The frontend model, typically extending
\Magento\Eav\Model\Entity\Attribute\Frontend\AbstractFrontend, is responsible for preparing the attribute value for display in the frontend, including formatting dates, adding pricing structures, and more.
The backend model deals with saving and loading attribute data, while the source model provides options for select attributes.
NEW QUESTION # 34
An Adobe Commerce developer has installed a module from a third-party vendor. This module fires a custom event named third_party_event_after and also defines an observer named third_party_event_after_observer that listens to that event. The developer wants to listen to this custom event in their own module but wants to execute their observer's logic after the third_party_event_after_observer observer has finished executing.
What would the developer do to ensure their observer runs after the observer defined by the third-party module?
- A. Set the sort order of the new observer to be less than that of the third-party vendor's observer.
- B. Ensure the third-party module is listed in the <sequence> node of the developer's module.xmi file.
- C. This is not possible as observers listening to the same event may be invoked in any order.
Answer: C
Explanation:
https://developer.adobe.com/commerce/php/best-practices/extensions/observers/#do-not-rely-on-invocation- order
NEW QUESTION # 35
An Adobe Commerce developer is tasked to add a file field to a custom form in the administration panel, the field must accept only .PDF files with size less or equal than 2 MB. So far the developer has added the following code within the form component xml file, inside the fieldset node:
How would the developer implement the validations?
A)
Add the Validations Within the HyVendor\MyModule\Controller\Adminhtml\CustomEntity\UploadPdf Controller
B)
Add a virtual type forMyvendor\MyModuie\Modei\customPdfupioader specifying the aiiowedExtensions and the maxFiiesize for the constructor, within the module's di.xmi:
C)
Add the following code inside the<settings> node:
- A. Option B
- B. Option A
- C. Option C
Answer: C
Explanation:
To add file upload validation for a custom form field in the Adobe Commerce admin panel, which should restrict the file type to .pdf and limit the file size to 2 MB, the recommended approach is to include the validation parameters directly within the <settings> node in the form'sXML configuration. This ensures that the validation occurs on the client-side as well as server-side, providing immediate feedback to users before submission.
Option C is correct for the following reasons:
* Adding Validation Inside <settings>:By placing the <allowedExtensions> and <maxFileSize> tags within the <settings> node of the XML configuration, the system will enforce these restrictions directly within the form component. This method leverages Magento's built-in support for validation settings, which ensures that only files matching the specified criteria (.pdf files of 2 MB or smaller) are accepted by the form.
* Explanation: Magento UI components allow for client-side validation through the <settings> node, where attributes such as allowedExtensions and maxFileSize are used to control file upload constraints. This approach not only validates the file size and type but also integrates seamlessly with Magento's front-end validation mechanisms.
NEW QUESTION # 36
What are two features with Adobe Commerce Cloud that come out of the box? (Choose Two.)
- A. Continuous deployment provided with the platform
- B. Fastly
- C. Support ACL
- D. A built in connector with all major blog platforms
Answer: A,B
Explanation:
Adobe Commerce Cloud offers several out-of-the-box features, including built-in Fastly integration for CDN and web application firewall services, as well as continuous deployment capabilities through its cloud infrastructure.
* Continuous Deployment:
* Adobe Commerce Cloud supports continuous deployment workflows, allowing code to be automatically built, tested, and deployed through its integration with Git and cloud CI/CD pipelines.
* Fastly Integration:
* Fastly is included as a CDN and caching layer with Adobe Commerce Cloud, offering improved site speed and security through caching and a web application firewall.
* Why Options B and D are Correct:
* Both of these features are inherent to Adobe Commerce Cloud. Option A (Support ACL) is a part of the Magento Admin Panel but is not a cloud-specific feature, and Option C (Blog platform connector) is not provided out-of-the-box.
NEW QUESTION # 37
A developer defined a new table in db.schema.xml while creating a new module.
What should be done to allow the removal of columns from the database when deleting them from db.schema.
xml?
- A. The columns should have "removable" attribute set to "true" in the db.schema.xml.
- B. The removable columns should be defined in db.schema_blacklist.json.
- C. The removable columns should be defined in db_schema_whitelist.json.
Answer: C
Explanation:
If a developer wants to allow the removal of columns from the database when deleting them fromdb.schema.
xml, they need to define the removable columns in thedb_schema_whitelist.jsonfile. This file will tell Magento which columns can be removed from the database.
To allow columns to be removed from the database when they are deleted fromdb_schema.xml, they must be listed in thedb_schema_whitelist.jsonfile. This file acts as a reference for which database schema elements are safe to modify or delete, providing a safeguard against unintentional data loss during schema updates.
NEW QUESTION # 38
A new custom module is built for the existing Adobe Commerce store. A merchant has requested a few frontend updates. For this, a developer has to implement a custom style.
What is the location of the less file that will be included by default?
- A. view/{area}/web/css/style less
- B. view/{area}/web/css/source/main less
- C. view/{area}/web/css/source/_module.less
Answer: B
Explanation:
Theview/{area}/web/css/source/main.lessfile is the default less file that is included by default. This file contains the main styles for the module.
In a custom module in Adobe Commerce, the default location for including custom LESS styles is typically view/{area}/web/css/source/_module.less. However, the most commonly used file for adding global styles is view/{area}/web/css/source/_extend.less. Theview/{area}/web/css/style.lessfile is not standard, and the main.lessfile is used as an entry point for compilation but typically does not contain custom styles directly.
NEW QUESTION # 39
How are multiple EAV attributes belonging to the same entity grouped in the database?
- A. Based on the types of values they contain
- B. Based on the sizes of values they contain
- C. Based on all numeric values being stored in one table while text values are stored in the other
Answer: A
Explanation:
Multiple EAV attributes belonging to the same entity are grouped in the database based on their data types, such as datetime, decimal, int, text, or varchar. For example, all attributes with datetime values are stored in one table, while all attributes with text values are stored in another table.
The sizes or numeric/text values of attributes do not determine how they are grouped in the database.
Verified References: [Adobe Commerce Developer Guide - EAV data model]
Magento's EAV (Entity-Attribute-Value) model organizes attributes based on their data types to optimize storage and retrieval. Attributes are grouped into different tables based on whether they store values of types such as integer, varchar (text), decimal, datetime, etc. This organization allows Magento to efficiently manage the diverse data types associated with products, customers, and other entities, ensuring data integrity and optimizing database performance by using appropriate indexing and storage mechanisms for each data type.
NEW QUESTION # 40
Which action, if any, should be taken to enable filtering by attribute in the category's layered navigation?
- A. Filtering by the attribute is enabled for every category automatically.
- B. Select "With layered navigation" from the category's display mode
- C. Set the category's "Anchor' display setting to "yes".
Answer: C
Explanation:
To enable filtering by attribute in a category's layered navigation, you should set the category's "Is Anchor" setting to "Yes". This setting is found in the category's display settings within the admin panel. When a category is set as "Anchor", Magento will automatically include filtering options in the layered navigation block for all attributes that are configured to be used in layered navigation.
NEW QUESTION # 41
What does a URL Rewrite do?
- A. It changes the way a URL appears in the browser
- B. It updates the URL that is stored on the server.
- C. It updates the URL to a domain that is not being Indexed.
Answer: A
Explanation:
A URL Rewrite in Magento changes the way a URL appears in the browser. This is particularly useful for improving the readability and SEO of a URL. For example, a URL rewrite can be used to transform a long and complex URL into a shorter and more user-friendly version. It's important to note that while a URL rewrite changes the URL's appearance in the browser, it doesn't change the actual location of the resource on the server. This distinction is crucial for understanding how Magento handles URL rewrites and redirects, facilitating a more intuitive navigation structure within the store without altering the underlying server resources.
NEW QUESTION # 42
A seller would like to offer an electronic version of an album by selling each song individually. Which layout can be used to customize a product page layout for this item?
- A. catalog_product_view_category
- B. catalog_product_view_type_downloadable
- C. catalog_product_view_type_configurable
Answer: B
Explanation:
Thecatalog_product_view_type_downloadablelayout can be used to customize a product page layout for a downloadable product. This layout includes the product details, the product reviews, and the download links for the product's files.
For selling electronic versions of albums with individual songs, the downloadable product type in Adobe Commerce is appropriate. To customize the product page layout specifically for downloadable items, the layout handlecatalog_product_view_type_downloadableis used. This layout handle allows developers to target downloadable products specifically and apply custom layouts or templates, making option A correct.
NEW QUESTION # 43
An Adobe Commerce developer has added an iframe and included a JavaScript library from an external domain to the website. After that, they found the following error in the console:
Refused to frame [URL] because it violates the Content Security Policy directive.
In order to fix this error, what would be the correct policy ids to add to the csp_whitelist.xml file?
- A. frame-src and script-src
- B. frame-ancestors and connect-src
- C. default-src and object-src
Answer: A
Explanation:
The Content Security Policy (CSP) in Adobe Commerce (Magento) restricts the types of content that can be loaded on a page to protect against malicious attacks, such as cross-site scripting (XSS). When an iframe is added, and a JavaScript library is loaded from an external source, these resources must be whitelisted explicitly using the csp_whitelist.xml file.
In this specific case:
* The frame-src directive controls the sources from which iframes can be embedded. Since the developer is embedding an iframe from an external domain, they need to whitelist this domain for frame-src.
* The script-src directive controls the sources from which JavaScript files can be loaded. The external JavaScript library must be whitelisted under script-src to allow it to execute.
Therefore, the correct policy IDs to whitelist are:
* frame-src: to allow the embedding of content from an external domain in an iframe.
* script-src: to allow the loading and execution of JavaScript files from the external domain.
Here's how to update the csp_whitelist.xml file with the correct directives:
<?xml version="1.0"?>
<whitelist
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:
magento:module:Magento_Csp:etc/csp_whitelist.xsd"
>
<policy id="frame-src">
<values>
<value id="your-external-domain.com"/>
</values>
</policy>
<policy id="script-src">
<values>
<value id="your-external-domain.com"/>
</values>
</policy>
</whitelist>
Replace your-external-domain.com with the actual domain of the external iframe and JavaScript source.
Additional Resources:
* Adobe Commerce Developer Guide: Content Security Policy (CSP)
* CSP Policies and Directives: Explanation of all supported CSP directives and how to configure them.
NEW QUESTION # 44
In a new release of a module, a developer decides to rename a table that was defined in the earlier versions.
Which action, if any, allows the developer to prevent data loss?
- A. Define onCreate="migrateDataFromAnotherTable(old_table_name)" attribute in the table tag.
- B. Declarative schema supports RENAME TABLE', so the data will be migrated to the new table automatically.
- C. Define the table and columns mapping in the db.schema_whitelist.json
Answer: C
Explanation:
When renaming a table in Magento, to prevent data loss, the developer must define the table and its columns mapping in thedb_schema_whitelist.jsonfile. This declarative schema approach ensures that the data migration tool knows about the changes and can migrate data from the old table to the newly named table without losing any data.
NEW QUESTION # 45
A merchant has noticed an error in the checkout. The accessed URL is /checkout.
Where can the developer find the responsible controller in the Magento.Checkout module?
- A. Controller/lndex/Checkout.php
- B. Controller/lndex/lndex.php
- C. Controller/Checkout/lndex.php
Answer: C
Explanation:
The controller responsible for handling the /checkout URL is located in Controller/Checkout/Index.php in the Magento.Checkout module1. This controller extends from \Magento\Checkout\Controller\Index\Index, which implements the execute() method that renders the checkout page1.
In the Magento_Checkout module, the responsible controller for the /checkout URL can be found in Controller/Checkout/Index.php. This controller handles the index action for the checkout process, initiating the checkout page when a customer navigates to /checkout. The organization of controllers in Magento follows a convention where the URL path corresponds to the directory structure within the module, making it easier to locate and understand the functionality associated with specific routes.
NEW QUESTION # 46
Which Magento project directory is the recommended webroot for the web server?
- A. Pub/
- B. app/
- C. bin/
Answer: A
Explanation:
The Pub/ directory is the recommended webroot for the web server in Magento. This is because it contains all of the static content that is used by the Magento store, such as images, CSS, and JavaScript files.
The recommended webroot for the web server in a Magento project is thepub/directory. This directory is used to access Magento static files and is the safer option for webroot as it minimizes security risks by not exposing the entire application structure to the web.
Thepub/directory in Magento is designed to be the root directory for web servers. This design choice is intended to enhance security and efficiency by serving static files directly from this location, thereby reducing the need for PHP processing for these files. By setting the webroot topub/, it ensures that only the necessary files are publicly accessible, protecting the application's core code and structure from external access. This setup is a recommended best practice in Magento development for maintaining a secure and well-organized file system structure.
NEW QUESTION # 47
An Adobe Commerce developer wants to generate a list of products using ProductRepositorylnterf ace and search for products using a supplier_id filter for data that is stored in a standalone table (i.e., not in an EAV attribute).
Keeping maintainability in mind, how can the developer add the supplier ID to the search?
- A. Add a CUStOm filter to the Virtual type
"agento\Catalog\Model\Api\SearchCriteria\CollectionProcessor\ProductFilterProce5sor for supplier_id field. In the custom filter, apply the needed join and filter to the passed $collection. - B. Write a before plugin on \Hagento\catalogVtodel\ProductRepository: :geti_ist() and register the search criteria passed. Write an event observer to 0 listen for the event cataiog_product_coiiection_ioad_before. Iterate through the registered search criteria, and if found, apply the needed join and filter to the events scollection.
- C. Write a before plugin On \Magento\Framework\Api\SearchCriteria\CollectionProcessorInterface: :
process(). Iterate through the $searchCriteria
provided for supplier_id, and if found, apply the needed join and filter to the passed scollection.
Answer: A
Explanation:
The developer can add a custom filter to the virtual type
Magento\Catalog\Model\Api\SearchCriteria\CollectionProcessor\ProductFilterProce5sor for supplier_id field.
In the custom filter, the developer can apply the needed join and filter to the passed $collection. This is the recommended way to extend the search criteria for products using dependency injection and plugins. Verified References: [Magento 2.4 DevDocs] [Magento Stack Exchange] In Adobe Commerce, when you need to add a custom filter for a non-EAV attribute stored in a standalone table, the most maintainable approach is to create a custom filter for ProductFilterProcessor. This processor allows for customized search criteria handling, which can be extended to include custom joins and filters without altering core functionality or relying on plugins and observers.
* Why Custom Filter in ProductFilterProcessor is Preferred:
* The ProductFilterProcessor within SearchCriteria\CollectionProcessor is specifically designed to handle filtering of product collections. By extending this with a custom filter, the developer can implement joins and filters on standalone tables.
* This approach is modular and reusable, allowing any code that utilizes ProductRepositoryInterface to apply the supplier_id filter seamlessly.
* Implementation of Custom Filter:
* Define a custom filter class that implements the required logic to join the standalone table and apply the supplier_id filter.
* Register this custom filter with a virtual type in di.xml for ProductFilterProcessor, so it can process the supplier_id as part of the search criteria.
* Why Options A and C are Less Suitable:
* Option A relies on an event observer, which is less modular and may have performance implications since it requires listening to every product collection load event.
* Option C, while functional, involves modifying CollectionProcessorInterface::process(), which is more generic and not specifically tailored for product collection filtering.
NEW QUESTION # 48
What database engine is part of the infrastructure of Adobe Commerce Cloud projects?
- A. MySQL
- B. Percona
- C. MariaDB
Answer: C
Explanation:
The database engine that is part of the infrastructure of Adobe Commerce Cloud projects is MariaDB.
MariaDB is a fork of MySQL that offers improved performance, scalability, and security features.
The database engine that is part of the infrastructure of Adobe Commerce Cloud projects is MariaDB. Adobe Commerce Cloud is configured to use MariaDB, which is a binary drop-in replacement for MySQL and is chosen for its performance, reliability, and feature set.
NEW QUESTION # 49
An Adobe Commerce developer is trying to create a custom table using declarative schema, but is unable to do so.
What are two errors in the snippet above? (Choose two.)
- A. Column (student_name) does not have attribute length.
- B. Column (entity_id) does not have index. It is needed since attribute identity is set to false.
- C. null is not a valid value for column (roll_no).
- D. Column (roll_no) does not have index. It is needed since attribute identity is set to true.
Answer: A,D
Explanation:
The correct answers are A and C.
The errors in the snippet are:
* Column roll_no does not have an index. It is needed since attribute_identity is set to true.
* Column student_name does not have an attribute length.
Theattribute_identityattribute specifies whether the primary key of the table should be auto-incremented.
Ifattribute_identityis set totrue, then theroll_nocolumn must have an index. Thestudent_namecolumn does not have an attribute length, which is required for string columns.
The following code shows how to fix the errors:
XML
<table name="vendor_module_table">
<entity_id>
<type>int</type>
<identity>true</identity>
<unsigned>true</unsigned>
<nullable>false</nullable>
</entity_id>
<roll_no>
<type>int</type>
<identity>false</identity>
<unsigned>true</unsigned>
<nullable>false</nullable>
<primary_key>true</primary_key>
<index>true</index>
</roll_no>
<student_name>
<type>string</type>
<length>255</length>
<nullable>false</nullable>
</student_name>
</table>
Once the errors have been fixed, the table can be created successfully.
NEW QUESTION # 50
Which type of product would assist a seller who would like to offer an electronic version of an album for sale and sell each song individually?
- A. Simple
- B. Configurable
- C. Downloadable
Answer: C
Explanation:
The type of product that would assist a seller in offering an electronic version of an album and selling each song individually is a Downloadable product. In Adobe Commerce, a Downloadable product type is specifically designed for selling digital products such as music files, which customers can download. This type of product allows sellers to upload individual songs and sell them separately or as part of a complete album.
NEW QUESTION # 51
A developer is making customizations in the checkout, and access to the quotes shipping address is needed.
Which file provides the shipping address of the current quote?
- A. Magento_Checkout/js/model/quote
- B. Magento_Quote/js/model/model
- C. Magento_Checkout/js/model/quote-shipping-address
Answer: A
Explanation:
This file provides the shipping address of the current quote by using the getShippingAddress() method. For example, the following code snippet gets the shipping address from the quote object and logs it to the console:
define([
'Magento_Checkout/js/model/quote'
],function(quote) {
'use strict';
varshippingAddress = quote.getShippingAddress();
console.log(shippingAddress);
});
The file Magento_Quote/js/model/model does not exist in Magento 2, and the file Magento_Checkout/js
/model/quote-shipping-address is not a valid way to access the shipping address of the current quote. You can read more about the quote object and its methods in the Magento 2 developer documentation.
In Adobe Commerce, the shipping address of the current quote is accessed through the JavaScript file Magento_Checkout/js/model/quote. This file includes various quote-related data, including shipping and billing addresses, items in the cart, and totals. There is noMagento_Checkout/js/model/quote-shipping- addressfile, andMagento_Quote/js/model/modelis not a valid path, making option A the correct choice.
NEW QUESTION # 52
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