Magento Related Exams
Magento-2-Certified-Associate-Developer Exam

A client has asked you to include category url keys in product URLs.
How is this done?
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?