Which of the following describes the storage organization of a Delta table?

Question

Options

• ADelta tables are stored in a single file that contains data, history, metadata, and other attributes.
• BDelta tables store their data in a single file and all metadata in a collection of files in a separate
• CDelta tables are stored in a collection of files that contain data, history, metadata, and other
• DDelta tables are stored in a collection of files that contain only the data stored within the table.
• EDelta tables are stored in a single file that contains only the data stored within the table.

• B
  7% (4)
• C
  87% (48)
• D
  4% (2)
• E
  2% (1)

Explanation

A Delta table is physically stored as a collection of Parquet files (the actual data, often partitioned) combined with a _delta_log transaction log directory containing JSON and checkpoint files that store metadata, schema, history, and other attributes. This multi-file structure is what enables Delta Lake's ACID transactions, time travel, and schema enforcement. Option A and E are wrong because Delta tables are never a single file. Option B is partially correct but wrong in calling data a 'single file.' Option D is wrong because it omits metadata and history, which are central to what makes Delta Lake different from plain Parquet.

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