Câu 54: Databricks Certified Data Engineer Professional

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?

1. 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. — đáp án hiện tại
2. B. By default, both the DBFS root and mounted data sources are only accessible to workspace administrators.
3. C. The DBFS root is the most secure location to store data, because mounted storage volumes must have full public read and write permissions.
4. D. Neither the DBFS root nor mounted storage can be accessed when using %sh in a Databricks notebook.
5. 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.