Answer: Cloud services

The correct answer is C (Cloud services) because the Cloud Services layer in Snowflake's architecture handles query parsing, optimization, and generation of the query execution plan. This is supported by the official Snowflake documentation and the community discussion, where the majority (67%) selected C, with key comments citing documentation links and explaining that query execution plan generation is a metadata operation performed by Cloud Services, not requiring an active virtual warehouse. While some comments suggested A (Compute) or D (Cloud provider), these are incorrect: the Compute layer executes the query using virtual warehouses, but does not generate the plan, and the Cloud provider (e.g., AWS, Azure) supplies infrastructure but is not part of Snowflake's architectural layers for query processing.

Author: LeetQuiz Editorial Team