Which file should a developer use to set the default value when creating configuration fields for admin?
Which action, if any, should be taken to enable filtering by attribute in the category's layered navigation?
In a new release of a module, a developer decides to rename a table that was defined in the earlier versions.Which action, if any, allows the developer to prevent data loss?
Which two methods add sorting to collections inherited from the \Magento\Framework\Model\ResourceModel\Db\Collection\AbstractCollection class? (Choose two.)
Which has its own root category?
Which command should be used to refresh the cache using the command line?