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Adobe AD0-E702 Exam Syllabus Topics:

Adobe Certified Professional Magento Commerce Developer Sample Questions:

1. In a code review of a merchant's site you have discovered that there are multiple observers for the checkout_submit_all_after event. After closer inspection, you notice one of these observers is relying on the others being executed before it is called.
What risk does this pose, and how can it be mitigated?

A) Magento only supports one observer per event. These observers will need to be combined into a single point of customization.
B) Event observers are fired in alphabetical order of the observer name. There is no risk here.
C) Order of listener execution cannot be guaranteed, resulting in a fragile implementation. This code should be re-worked using plugins
D) There is no risk posed as long as each event observer specifies a correct sortOrder. Nothing needs to be changed.

2. Magento allows you to specify custom values per store for product attributes created in the admin panel.
Which architectural pattern makes it possible?

A) Entity Attribute Value
B) Store Manager
C) Extension Attribute
D) Dependency Injection

3. The constructor function for \Magento\Catalog\Model\Category contains this excerpt:

With the automatic dependency injection that Magento provides, how is the StoreManagerInterface resolved?

A) Magento finds all classes that implement \Magento\Store\Model\StoreManagerInterface (ordered alphabetically) and injects the first class.
B) Magento throws an exception because you cannot instantiate an interface
C) If no $storeManager is provided, Magento's code generator creates a shell concrete class based on
\Magento\Store\Model\StoreManagerInterface
D) Magento looks to the di.xml files in the entire system for a preference node for
\Magento\Store\Model\StoreManagerInterface. This class is constructed and injected

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

A) It will loop over all items and call save () on each one
B) It will save the select query to the cache
C) It will save the select query execution result into the cache
D) It will save all items with one INSERT ... ON DUPLICATE KEY UPDATE query

5. You got a notification about error that occurred on a production environment. The merchant gave you the error identifier.
How do you find the error message based on the identifier?

A) A file with a name matching the identifier is written to the var/report folder
B) The error is sent to the pre-configured error email with the identifier in the subject
C) An error message is written to the database table error_log with an error_id field matching the identifier
D) An error is written to the var/log/exception.log file including the identifier

Solutions: