Question 1

A merchant tasked you to add an input field for notes to the Customer Account Information backend page. Which three actions do you specify in a module's Data Patch to add a customer notes attribute? (Choose three.)
A) $cache->clean(['eav', 'db_ddl']);
B) $customerSetup->addAttribute('customer', 'notes', $options);
C) $customerSetup->getConnection()->addColumn('customer_entity', 'notes', $columnSpecs);
D) $notesAttribute->setData('used_in_forms', ['adminhtml_customer']);
E) $customerSetup->addAttributeToSet('customer', $attributeSetIdCustomer, $groupId, 'notes');

Accepted Answer

A,B,D

Question 2

How can you access the select query of a collection?
A) You can only access the select query after the collection has been loaded by calling the public method query()
B) It is stored in a protected variable $query and can only be accessed from the inside of a collection class
C) You can get it by using public method getSelect() which returns an instance of Magento\Framework\DB\Select
D) The select query is not available in the collection class, it will be generated by the MySQL adapter right before executing a query

Accepted Answer

The select query of a collection can be accessed using the public method getSelect(), which returns an instance of Magento\Framework\DB\Select.

Question 3

What is a valid use case for an around plugin?
A) The execution of the pluginized method must be suppressed
B) The arguments of the before plugins must be modified The arguments of the before plugins must be modified
C) The arguments of the after plugins must be modified after
D) The execution of the before and after plugins must be suppressed The execution of the and plugins must be suppressed

Accepted Answer

D

Question 4

You have to install a new module on the production environment. All the module is adding a new product attribute. You enabled maintenance mode, copied the module code, run bin/magento setup:upgrade and disabled maintenance mode. What two risks does this process pose? (Choose two.)
A) It will clean all caches which will cause a performance degradation
B) The new attribute will be invisible on the storefront until the cache is cleaned manually
C) It will void all active sessions
D) It will clean static assets from the pub/static folder It will clean static assets from the pub/static folder

Accepted Answer

The answer of You have to install a new module...

Question 5

A third-party module uses a layout update that changes the template path for a core block from product/view/addto/compare.phtml of the Magento_Catalog module to custom/view/addto/compare.phtml of your custom module. The merchant has a customized version of this template in their custom theme. What is a consequence of this setup?
A) If the custom module is removed, the custom template will no longer apply
B) This setup will throw an IllegalStateException This setup will throw an IllegalStateException
C) If a preference for the core block is set, the template will no longer apply
D) If another module is installed which also customizes the same core template, the templates will be rendered sequentially

Accepted Answer

If the custom module is removed, the custom template path it defined will no longer be available, and the system will revert to the default template path, ignoring the merchant's custom theme template.

Question 6

You are adding a child node to the product.info block using the XML:  How will this block be rendered?
A) Child block nodes are automatically rendered as HTML
B) By calling $block->getChildHtml('mynewblock') in the parent block's template
C) The layout is invalid since block elements cannot be nested
D) Automatically if the block class Custom implements the _toHtml method

Accepted Answer

The answer of You are adding a child node to...

Question 7

Magento 2's architecture uses code to bootstrap a custom module that resides in app/code. What two files are required to make a module usable? (Choose two.)
A) Helper/Data.php
B) etc/config.xml
C) etc/module.xml
D) registration.php

Accepted Answer

The etc/module.xml file declares the module and its dependencies, while the registration.php file registers the module with Magento's component registrar.

Question 8

How does Magento store customer address attribute values?
A) Customer address is a flat entity, so all values are stored in the customer_address_entity table
B) Customer address is not an entity, so its properties are customer attributes
C) Customer address is an attribute of the customer, so it doesn't have its own attributes
D) Customer address is an EAV entity, so all values are stored in the customer_address_entity table and related values tables

Accepted Answer

Magento uses the EAV (Entity-Attribute-Value) model for storing customer addresses, meaning the main data is stored in the customer_address_entity table, with additional attribute values stored in related tables.

Question 9

You are developing a module and need to add another column to a table introduced by another module MyCompany_MyModule via db schema. How do you do that? A) Create a etc/db_schema.xml file in your module, add the column and run bin/magento setup:upgrade Create a etc/db_schema.xml file in your module, add the column and run bin/magento setup:upgrade B) Create a etc/db.xml file in your module, add the column and run bin/magento setup:db-schema:upgrade etc/db.xml file in your module, add the column and run bin/magento setup:db-schema:upgrade C) Run a command: bin/magento setup:db-schema:upgrade Run a command: bin/magento setup:db-schema:upgrade

D) Create a etc/db_schema_whitelist.json file in your module, add the column and run bin/magento setup:upgrade etc/db_schema_whitelist.json file in your module, add the column and run

Accepted Answer

The answer of You are developing a module and need...

Question 10

The module MyCompany_MyModule will add a new page to the admin interface at the URL path admin/mycompany/entity_grid. How do you name the file containing the action controller class so the admin router matches the path to the class?
A) Controller/Adminhtml/Entity/Grid/Index.php
B) Controller/Adminhtml/Mycompany/Entity/Grid.php
C) Controller/Adminhtml/Entity/Grid.php
D) Controller/Adminhtml/Mycompany/Entity_Grid.php

Accepted Answer

The answer of The module MyCompany_MyModule will add a new...

Question 11

How do you pass an array ['one', 'two] as a parameter to you block using the layout XML arguments directive? 
A) Option A
B) Option B
C) Option C
D) Option D

Accepted Answer

The answer of How do you pass an array ['one',...

Question 12

In the module located at app/code/MyCompany/MyModule there is a JS module in the file view/frontend/web/register.js . The Magento base URL is https://magento.host/ and the luma theme with the en_US locale is used. What is the public URL for this file?
A) https://magento.host/pub/static/frontend//Magento/luma/en_US/MyCompany_MyModule/js/register.js
B) https://magento.host/pub/static/frontend/Magento/luma/en_US/MyCompany_MyModule/register.js
C) https://magento.host/pub/static/frontend/Magento/luma/en_US/MyCompany_MyModule/web/register.js
D) https://magento.host/app/code/MyCompany_MyModule/view/frontend/web/register.js

Accepted Answer

The public URL for a JS module in a Magento 2 module is generated by combining the Magento base URL, the "pub/static" directory, the frontend directory, the theme name, the locale, the module name, and the JS file path. In this case, the public URL for the "register.js" file in the "MyCompany_MyModule" module is "https://magento.host/pub/static/frontend//Magento/luma/en_US/MyCompany_MyModule/js/register.js".

Question 13

What is the connection between product attribute sets and categories?
A) Categories have no connection to product attribute sets, and any product can be assigned to any category
B) Each category is linked to a single product attribute set, and only products from that attribute set are allowed in the category
C) Each category is linked to a single product attribute set, and only products from that category's set or any of its parent categories' sets are allowed
D) Categories can be connected to multiple product attribute sets, and only products from one of those sets are allowed in the category

Accepted Answer

The answer of What is the connection between product attribute...

Question 14

Products may be accessed using SEO friendly URLs like /my-product instead of /catalog/product/view/id/{ID} How is this one?
A) An event observer adds RewriteRules to .htaccess on product save
B) Magento\Catalog\Controller\Product\View::loadByUrlKey loads product pages using the url_key attribute value
C) Using a URL Rewrite stored in the database connecting the request path with the target path
D) A plugin on \Magento\UrlRewrite\Controller\Router::match loads products by the url_key attribute

Accepted Answer

Using a URL Rewrite stored in the database connects the request path with the target path, allowing SEO friendly URLs to be used for accessing products.

Question 15

Which method of a Magento resource model will remove a record from the database?
A) remove
B) erase
C) clean
D) delete

Accepted Answer

The `delete` method is used in Magento resource models to remove a record from the database.

Question 16

What will be the result of calling the save() method on a collection instance?
A) It will save all items with one INSERT … ON DUPLICATE KEY UPDATE query
B) It will loop over all items and call save () on each one
C) It will save the select query execution result into the cache
D) It will save the select query to the cache

Accepted Answer

The save() method on a collection instance typically loops over all items in the collection and calls the save() method on each individual item.

Question 17

How many shipping addresses may be selected for an order during the checkout process?
A) One shipping address per line item is possible
B) Only one shipping address per order is possible
C) One shipping address per unit of quantity is possible
D) One shipping address per product type is possible

Accepted Answer

Only one shipping address per order is possible, regardless of the number of line items, units of quantity, or product types.

Question 18

A module you are working on needs to send a newsletter to all subscribed customers at predefined intervals. Which two actions do you take to make sure the newsletter is sent? (Choose two.)
A) Implement \MyCompany\MyModule\Cron\NewsLetterSender::execute and register it in etc/crontab/di.xml Implement \MyCompany\MyModule\Cron\NewsLetterSender::execute and register it in etc/crontab/di.xml
B) Implement \MyCompany\MyModule\Cron\NewsLetterSender::execute and register it in etc/crontab/.xml etc/crontab/.xml
C) Make sure bin/magento cron:run is added to the system crontab Make sure bin/magento cron:run is added to the system crontab
D) Register the plugin for \Magento\Customer\Model\Customer::authenticate in etc/crontab.xml Register the plugin for \Magento\Customer\Model\Customer::authenticate in etc/crontab.xml

Accepted Answer

The answer of A module you are working on needs...

Question 19

\Magento\Sales\Model\Api\OrderRepositoryInterface::getList accepts a SearchCriteriaInterface to filter and sort information. What class assists in creating an instance for SearchCriteriaInterface?
A) \Magento\Framework\Api\SearchCriteriaFactory
B) \Magento\Framework\Api\SearchCriteriaBuilder
C) \Magento\Sales\Model\Order\SearchCriteria
D) \Magento\Backend\Api\SearchCriteriaGenerator

Accepted Answer

The \Magento\Framework\Api\SearchCriteriaBuilder class assists in creating an instance for SearchCriteriaInterface by providing methods to add filters, sort orders, and paging criteria.

Question 20

You are setting up a brand new Magento installation for a merchant who is migrating from Magento 1 to Magento 2. Keeping in mind upgradability and the need to customize, which one do you choose? A) Create a new Magento instance using composer create-project Create a new Magento instance using composer create-project B) Clone the magento/magento2 GitHub repository Clone the magento/magento2 GitHub repository C) Run php bin/magento setup:migrate

command Run php bin/magento setup:migrate

command D) Create a new Magento instance by using the bin/magento install command Create a new Magento instance by using the bin/magento install

Accepted Answer

The answer of You are setting up a brand new...

Exam 4: Magento 2 Certified Associate Developer

A merchant tasked you to add an input field for notes to the Customer Account Information backend page. Which three actions do you specify in a module's Data Patch to add a customer notes attribute? (Choose three.)

How can you access the select query of a collection?

What is a valid use case for an around plugin?

You have to install a new module on the production environment. All the module is adding a new product attribute. You enabled maintenance mode, copied the module code, run bin/magento setup:upgrade and disabled maintenance mode. What two risks does this process pose? (Choose two.)

You are adding a child node to the product.info block using the XML: How will this block be rendered?

Magento 2's architecture uses code to bootstrap a custom module that resides in app/code. What two files are required to make a module usable? (Choose two.)

How does Magento store customer address attribute values?

You are developing a module and need to add another column to a table introduced by another module MyCompany_MyModule via db schema. How do you do that?

The module MyCompany_MyModule will add a new page to the admin interface at the URL path admin/mycompany/entity_grid. How do you name the file containing the action controller class so the admin router matches the path to the class?

How do you pass an array ['one', 'two] as a parameter to you block using the layout XML arguments directive?

In the module located at app/code/MyCompany/MyModule there is a JS module in the file view/frontend/web/register.js . The Magento base URL is https://magento.host/ and the luma theme with the en_US locale is used. What is the public URL for this file?

What is the connection between product attribute sets and categories?

Products may be accessed using SEO friendly URLs like /my-product instead of /catalog/product/view/id/{ID} How is this one?

Which method of a Magento resource model will remove a record from the database?

What will be the result of calling the save() method on a collection instance?

How many shipping addresses may be selected for an order during the checkout process?

A module you are working on needs to send a newsletter to all subscribed customers at predefined intervals. Which two actions do you take to make sure the newsletter is sent? (Choose two.)

\Magento\Sales\Model\Api\OrderRepositoryInterface::getList accepts a SearchCriteriaInterface to filter and sort information. What class assists in creating an instance for SearchCriteriaInterface?

You are setting up a brand new Magento installation for a merchant who is migrating from Magento 1 to Magento 2. Keeping in mind upgradability and the need to customize, which one do you choose?