Two of the most common data locations on Databricks are the DBFS root storage and external object storage mounted with dbutils.fs.mount().
Which of the following statements is correct?
A.
DBFS is a file system protocol that allows users to interact with files stored in object storage using syntax and guarantees similar to Unix file systems.
B.
By default, both the DBFS root and mounted data sources are only accessible to workspace administrators.
C.
The DBFS root is the most secure location to store data, because mounted storage volumes must have full public read and write permissions.
D.
Neither the DBFS root nor mounted storage can be accessed when using %sh in a Databricks notebook.
E.
The DBFS root stores files in ephemeral block volumes attached to the driver, while mounted directories will always persist saved data to external storage between sessions.
A is correct . For E, This statement is partially incorrect. The DBFS root does use ephemeral storage, but not block volumes. Data saved there is lost when the cluster terminates unless explicitly persisted elsewhere. Mounted storage, however, can persist data between sessions depending on the underlying storage service and configuration.
Databricks File System (DBFS) is a layer over a cloud object storage (like AWS S3, Azure Blob Storage, or GCP Cloud Storage) that allows users to interact with data as if they were using a traditional file system. It provides familiar file system semantics and is designed to be consistent with POSIX-like file system behavior, which includes commands and actions similar to those used in Unix and Linux file systems.
it is not E.
The only on that would be plausible is A
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