Storage Tiers, Lifecycle, Archival, and Migration

Where this lesson fits

This lesson covers Domain 4: Design Cost-Optimized Architectures, Task 4.1: Design cost-optimized storage solutions. Domain 4 carries 20% of the scored content of SAA-C03, and storage is one of its most predictable topics. The questions describe data with an access pattern (hot for a month, then rarely read; unpredictable; written once and kept for seven years), a retrieval expectation (milliseconds, minutes, or hours), and a constraint (minimum cost, no application changes, regulatory retention). Your job is to pick the cheapest design that still meets every stated requirement.