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Adobe Certified Expert - Magento Commerce Developerの疑問にお答えします

Adobe Certified Expert - Magento Commerce Developer 認定 AD0-E703 試験問題：

問題 #1

You are building an tool that imports products from an ERP. There are 20 columns of additional information that are associated with each product. This extra information must also be associated with an update time to know when to refresh the data. Keeping maintainability in mind, how do you build this into Magento?

A. Create 20 EAV attributes and check their updated_at column.
B. Utilize an extension attribute.
C. Create a separate model and build code to associate the two record types.
D. Override the Product model and add the fields.

問題 #2

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. It will clean static assets from the pub/static folder
C. The new attribute will be invisible on the storefront until the cache is cleaned manually
D. It will void all active sessions

問題 #3

A merchant asks you to extend customer functionality to allow customer accounts to be associated with two or more billing addresses.
How is this implemented?

A. This is out-of-the box functionality
B. By altering the customer_entity table, adding the field billing_address2, and customizing both My Account and Checkout functionality to use that new field
C. By changing the System Configuration setting: Customer>Allow multiple billing addresses to Yes
D. By adding the attribute like customer_address_billing2 and customizing both My Account and Checkout functionality to use that new attribute

問題 #4

A module MyModule needs to send notifications to customers only when the account was modified from a mobile app using the REST web APIs.
You decided to implement an observer for customer_save_after_data_object event.
In which file do you declare the observer?

A. etc/webapi_rest/events.xml
B. etc/events.xml
C. etc/adminhtml/events.xml
D. etc/webapi/rest_events.xml

問題 #5

You have created a module controller that responds to the following URL: /mycompany/product/load/id/123.
Which two methods will load the product model by ID as specified in the URL? (Choose two.)

A. \Magento\Catalog\Model\ResourceModel\Product::load($productModel, $id)
B. \Magento\Catalog\Api\ProductRepositoryInterface::getById($id)
C. \Magento\Catalog\Model\ResourceModel\Product\Collection::load()->fetchById($id)
D. \Magento\Catalog\Model\ResourceModel\Product\Collection::fetchItemById($id)

解説：