In an in-memory data warehouse, what is the primary method to ensure data durability and prevent data loss?
- Frequent data backups to disk
- Persistent data snapshots
- Redundant storage servers
- Replication to a separate cluster
In an in-memory data warehouse, the primary method to ensure data durability and prevent data loss is through the use of persistent data snapshots. These snapshots capture the in-memory data and save it to durable storage, providing a backup that can be used to recover data in case of system failure or data corruption.
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