Which of the following is hosted completely in the control plane of the classic Databricks architecture?

Which of the following is hosted completely in the control plane of the classic Databricks architecture?
A . Worker node
B . JDBC data source
C . Databricks web application
D . Databricks Filesystem
E . Driver node

Answer: C

Explanation:

In the classic Databricks architecture, the control plane includes components like the Databricks web application, the Databricks REST API, and the Databricks Workspace. These components are responsible for managing and controlling the Databricks environment, including cluster provisioning, notebook management, access control, and job scheduling. The other options, such as worker nodes, JDBC data sources, Databricks Filesystem (DBFS), and driver nodes, are typically part of the data plane or the execution environment, which is separate from the control plane. Worker nodes are responsible for executing tasks and computations, JDBC data sources are used to connect to external databases, DBFS is a distributed file system for data storage, and driver nodes are responsible for coordinating the execution of Spark jobs.