Exam Databricks-Certified-Professional-Data-Engineer Topic 5 Question 15 Discussion
Actual exam question for Databricks's Databricks-Certified-Professional-Data-Engineer exam
Question #: 15
Topic #: 5
Question #: 15
Topic #: 5
A data engineer is configuring Delta Sharing for a Databricks-to-Databricks scenario to optimize read performance. The recipient needs to perform time travel queries and streaming reads on shared sales data.
Which configuration will provide the optimal performance while enabling these capabilities?
Which configuration will provide the optimal performance while enabling these capabilities?
Suggested Answer: A Vote an answer
Comprehensive and Detailed Explanation From Exact Extract of Databricks Data Engineer Documents:
The official Delta Sharing guidance specifies that in order for recipients to use time travel queries and streaming reads, providers must share Delta tables WITH HISTORY. Sharing history ensures the Delta log is included, which enables efficient access to table snapshots and incremental data streams. Additionally, Change Data Feed (CDF) must be enabled prior to sharing if downstream consumers require streaming CDC queries. Without history, recipients cannot perform time travel or streaming queries. Open sharing supports static Delta tables but lacks streaming support. Therefore, sharing tables WITH HISTORY and enabling CDF is the required configuration for both performance and functionality.
The official Delta Sharing guidance specifies that in order for recipients to use time travel queries and streaming reads, providers must share Delta tables WITH HISTORY. Sharing history ensures the Delta log is included, which enables efficient access to table snapshots and incremental data streams. Additionally, Change Data Feed (CDF) must be enabled prior to sharing if downstream consumers require streaming CDC queries. Without history, recipients cannot perform time travel or streaming queries. Open sharing supports static Delta tables but lacks streaming support. Therefore, sharing tables WITH HISTORY and enabling CDF is the required configuration for both performance and functionality.
by Mignon at Oct 15, 2026, 12:44 AM
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