You are working on a jewelry store that sells rings. Each ring allows an adjustment in size. The customer specifies finger size in inches and the merchant physically adjusts the stocked ring to the required size.
How is this represented in Magento?

\Magento\Sales\Model\Api\OrderRepositoryInterface::getList accepts a SearchCriteriaInterface to filter and sort information.
What class assists in creating an instance for SearchCriteriaInterface?

You are implementing a custom module MyModule, which provides an implementation of
\Psr\Log\LoggerInterface called \MyCompany\MyModule\Logger.
The LoggerInterface has the default preference declared in app/etc/di.xml.
Keeping upgradability in mind, how do you make \MyCompany\MyModule\Logger the default implementation of the LoggerInterface globally?

The module MyCompany_MyModule will add a new page in the admin interface to display a custom entity in a grid.
You created a controller for this grid \MyCompany\MyModule\Controller\Adminhtml\CustomEntity\Index Which two actions are required to make the new page accessible at the
https://your.store.base.url/admin/my_module/custom_entity URL? (Choose two.)

You are working on a project that contains a million SKUs. The merchant has requested the product view page to have a custom color schema and page layout depending on the product price range.
How do you implement this, keeping simplicity in mind?