A module declares the route:

What is the layout handle of the storefront path /custom/feature/?

A module declares the route:

What is the layout handle of the storefront path /custom/feature/?

You are working on a Magento store which will be selling in two countries. Each country has its own set of payment methods.
How do you organize the project to support this requirement?

You are building a report using complex SQL aggregations to locate the required data.
In what type of class do you put these SQL statements?

You have added a new attribute origin of the type varchar to the product entity.
Which two calls will filter a product collection with origin set to "California"? (Choose two.)