Which type of Azure Backup policy is NOT typically available?

In an Azure Backup context, the types of backup policies determine how data is backed up and how often. Each of the named options corresponds to common backup strategies used in various systems, but Azure Backup does not typically operate using an incremental backup policy as a standalone option.

A full backup policy involves taking a complete copy of the dataset, which is a fundamental option available in Azure. Differential backup policies, on the other hand, back up only the data that has changed since the last full backup, which is also supported in Azure Backup. Log backup policies, typically used in database environments to back up transaction logs, are relevant for specific workloads, particularly with Azure SQL Database.

The term "incremental backup" generally refers to the concept of backing up only the data changes since the last backup of any type (full or differential). While Azure Backup does have mechanisms that achieve recovery point objectives similar to incremental backups, it is not labeled as a separate policy type available to users. This lack of a standalone incremental backup option is reflective of how Azure formulates its backup processes, ensuring efficiency and speed in backup operations by using other definitions and methods.