Answer: Authentication, Query parsing and optimization

The Snowflake Cloud Services layer is responsible for coordinating and managing the overall system. Authentication (A) is handled by this layer as it manages user access and security. Query parsing and optimization (E) is also managed by this layer as it processes SQL queries, creates execution plans, and coordinates query execution across the platform. Access delegation (B) is not a primary function of the Cloud Services layer. Data pruning (C) and data compression (D) are storage optimization techniques handled by the Storage layer, not the Cloud Services layer. The community discussion shows 100% consensus on AE with upvoted confirmation that these are the correct answers.

Author: LeetQuiz Editorial Team