Which of the following is not a common type of database encryption?

Sensitivity-based encryption is not a common type of database encryption in the same way that the other options are recognized. The common types of database encryption generally focus on specific structures or items within a database.

Full disk encryption is a well-established method that protects all data on a storage device, including databases. Column-level encryption allows for the encryption of specific columns within a database table, protecting sensitive information such as Social Security numbers or credit card information. Row-level encryption, while less common, encrypts individual rows in a table, which can be leveraged to limit access to sensitive information on a per-user basis.

In contrast, sensitivity-based encryption is not a defined and widely accepted category of database encryption. It implies a contextual or policy-based approach to encryption based on the sensitivity of data but does not fit into the standard practices recognized in the field of database security.