Question 71
You have configured an event observer to watch the checkout_submit_all_after event using this XML:

What is the required class definition for the event observer?


What is the required class definition for the event observer?

Question 72
You are developing a new theme which inherits from the Magento_Luma theme.
How is this accomplished?
How is this accomplished?
Question 73
Where do you change the frontName for the admin router?
Question 74
You want to remove a column introduced by a third-party extension via declarative schema.
How do you do that?
How do you do that?
Question 75
What will be the result of calling the save() method on a collection instance?