Dedicated Access mode on Azure Databricks clusters provides the option to give access to a GROUP.

Trying to understand the use case

1. when compared to Standard (formerly: Shared)?
2. When compared to Dedicated (access given to single user)?

Ignoring - Language restriction where Standard does NOT support R as of 2025-May.

Observation:

• Dedicated - when assigned to a single user, allows even things like JDBC connections to work (almost like No Isolation mode)
• Dedicated - when assigned to a group, allowed only if that group has direct permission to the external sources. Understandable, since documentation mentions that permission would be restricted to that group.