You have been given the task of importing products from an external source. You decide to create a custom module to do this. The class handling the import creates a product for each record, sets the data on it and saves it to the database.
What do you inject into a constructor to represent each product you create?

You are making some major adjustments to a core Magento class (ClassA). These adjustments are only necessary when utilized from a specific Magento class (ClassB). You have created MyClass that contains the needed customizations.
Keeping upgradeability in mind, how do you configure di.xml to make the substitution happen?

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 do you obtain customer information in a JavaScript module?

You are adding an entry to the backend menu. To do so you open a core etc/adminhtml/menu.xml file as a reference. In the file you see the node:

What is the result of specifying resource="Magento_Catalog::catalog"?