if a merchant applies the Shopping Cart Price Rules and the Catalog Price Rules to a product, which price rules will get priority when the customer checks out?

Which are correct regarding the use of PayPal gateways solution in Magento 1.9?

in which methods would you log event names?

Maximum number of orders that a merchant can display on the 'Orders' page while managing orders in the Magento backend?

Which tools/customizations are available in Magento?

Which validation checks for the data entered in a field are available?

Which does NOT return an instance of a helper object

A ..... can hold products with full, partial, or no configuration.

A Backend controller extends which class ?

Inside a .phtml file, what does '$this' refer to?

A custom frontend controller will extend which one of the following classes?