Snowflake Certification Practice Test

In which layer does Snowflake store various statistics for databases?

1. Storage

2. Compute

3. Cloud Services

4. None of the above

The correct answer is: Cloud Services

Snowflake stores various statistics for databases in the Cloud Services layer. This layer is responsible for managing system metadata and performs critical coordination functions among the storage and compute layers. Statistics, which can include information like the distribution of data, query execution metrics, and other performance-related data, are typically handled in this layer to optimize query performance and resource utilization. The Cloud Services layer plays an essential role in leveraging these statistics for query optimization by making decisions on the most efficient way to execute queries, thus facilitating faster response times and improved efficiency in data processing. The architecture of Snowflake divides responsibilities among the layers, ensuring that storage concerns are distinct from computation, which allows for flexibility and scalability. In contrast, the Storage layer is focused on the actual storage of data, while the Compute layer concerns itself with running queries and processing data. Hence, the management and utilization of statistics fit best within the Cloud Services layer.