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Does Snowflake only replicate the Storage layer to other availability zones?

  1. Yes

  2. No

  3. Only if configured

  4. Only for transactional data

The correct answer is: No

Snowflake offers a robust architecture that allows it to replicate not just the storage layer but also the compute layer and various metadata components across different availability zones. This ensures high availability and disaster recovery capabilities. While it is true that the storage layer is an important aspect of replication, Snowflake's ability to replicate its entire architecture enhances resilience against outages and provides seamless access to data, regardless of the availability zone in which the user is located. The other options provide limitations or constraints that do not accurately reflect Snowflake's capabilities. For instance, claiming it's "only" the storage layer would overlook the comprehensive replication strategy that Snowflake employs to maintain operational continuity. Moreover, replication is designed to function across all relevant components rather than being restricted to certain configurations or only transactional data. Thus, the architecture is built to provide thorough redundancy and support for varying workloads across the entire system.