What is the difference in the effect of calling the invoice capture() method versus the invoice pay() method?

Define the last fall-back hierarchy

How will you add/remove content from core’s system.xml file?

What does Magento use to determine whether the automatically run upgrade scripts have been run yet?

For an attribute to be loaded on a catalog/product object, which two of the following conditions must be satisfied? A - The eav_attribute table must contain a row defining the attribute's properties and its entity type. B - The attribute must have a backend model configured in the XML config. C - The attribute must be part of the attribute set pertaining to the object being loaded. D - There must be a record of the attribute on the catalog_product_super_attribute table. E. There must be a column added to the catalog_product_entity table.

Which EAV attribute frontend_input types makes use of source models?

What step during the layout loading is the node processed?

Correct XML path for setting a module’s setup connection?

What is stored in the var directory? 

You can extend Bundle updates product listing using the grid UI component located? Magento/BundleStaging/product/adminhtml/ui_component/bundle_update_product_listing.xml

We need to make the following actions, In order to create a module with one payment method that will accept credit card information Authorize it when an order is submitted Save the transaction ID in order payment record