Identify the missing word(s) in the following sentence within the context of Microsoft Azure. There are two Azure SQL purchasing models available. In the [?] model, you pay for: Compute resources. (The service tier + the number of vCores and the amount of memory + the generation of hardware.) The type and amount of data and log storage. Backup storage location. (Read-access geo-redundant storage (RA-GRS), Zone-redundant storage (ZRS), or locally-redundant storage (LRS)).