A third-party module uses a layout update that changes the template path for a core block from product/
view/addto/compare.phtml of the Magento_Catalog module to custom/view/addto/
compare.phtmlof your custom module. The merchant has a customized version of this template in their
custom theme.
What is a consequence of this setup?

You are tasked with ensuring customers who log into the site are authorized. By default, this consists of
ensuring the customers email and password match the values in the database. On this project, you need to
verify additional data in this process.
Keeping in mind upgradeability, how is this done?

Assume that $collection is a new instance of a class that extends
Magento\Framework\Model\ResourceModel\Db\Collection\AbstractCollection, and $ids is an array of ids.
How do you select a list of records from the database where the record ids are in the $ids list?

How many shipping addresses may be selected for an order during the checkout process?

You are tasked to install an extension to the merchant's Magento instance.
The extension is developed by the company called MyCompany and its codebase is available from all four locations listed below.
Which two installations options do you choose from to prevent version conflicts during upgrade? (Choose two.)