Databricks Certified Data Engineer - Associate
Get started today
Ultimate access to all questions.
Deep dive into the quiz with AI chat providers.
We prepare a focused prompt with your quiz and certificate details so each AI can offer a more tailored, in-depth explanation.
Which file format is used for storing Delta Lake Table?
Real Exam
Community
KKeng
0
A
CSV
B
Parquet
C
JSON
D
Delta
Explanation:
Delta Lake tables use the Delta format, which is built on top of Parquet files but adds additional metadata and transaction log capabilities. While Parquet is the underlying storage format for data files, Delta is the overall format that includes:
- Parquet data files - For storing the actual data
- Transaction log - For ACID compliance and versioning
- Metadata - For schema enforcement and evolution
So while option B (Parquet) is technically correct for the underlying data storage, the question specifically asks about the format used for storing Delta Lake Tables, which is the Delta format. The Delta format provides additional features like ACID transactions, time travel, schema enforcement, and unified batch/streaming processing that go beyond basic Parquet storage.
Comments
Loading comments...