Given the above OCAPI definitions, which permission or permissions apply?

A Digital Developer suspects a logical error in a script.
Which action will help locate the error?

Given the customer basket described below:
* A customer has an existing basket that consists of multiple items.
* One of the items is identified as a gift item by an attribute at the product line item.
The developer needs to write custom code to fetch the customer basket and then modify the basket based upon the items in the cart. If the basket contains any gift items, modify the basket and create a separate shipment for the gift item.
Four hooks are required to make the modification, beginning with modifyGETRespone and ending with validatebasket.
* Dw.ocapi.shop.basket.modifyGETResponse
* -- missing hook -
* -- missing hook --
* dw.ocapi.shop.basket.validateBasket
What are the two missing hooks in the middle?

A Digital Developer is inspecting the weekly service status report for a critical internally-hosted web service used in the application and notices that there are too many instances of unavailability.
Which two solutions are possible options to reduce the unavailability of the service? (Choose two.)

Refer to the screen shotbelow:

Given a site called RefArch that has the settings shown, what must be done for RefArch to use the same customer list as RefArchGlobal?