Suggested answer

Salesforce offers four sandbox types:

1. Developer: Metadata-only copy. 200 MB storage. Free with most editions. Refresh interval: 1 day. Used for development and unit testing.
2. Developer Pro: Metadata-only copy. 1 GB storage. Refresh interval: 1 day. For larger development projects.
3. Partial Copy: Metadata plus a sample of production data (configurable via sandbox template). 5 GB storage. Refresh interval: 5 days. Used for testing with realistic data volumes.
4. Full: Complete copy of production metadata and all data. Same storage as production. Refresh interval: 29 days. Used for final UAT, performance testing, and training.

Practice content for interview preparation; not an official vendor answer. Verify details against current product documentation.

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