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AWS Solutions Architect - Associate

AWS ElastiCache

ElastiCache Solution Architecture

DB Cache

User Session Store

Redis vs Memcached

Redis Memcached
Multi AZ with auto-failover Multi-node for partitioning data (sharding)
Read replicas to scale reads and have high availability Non persistent
Data durability and AOF persistance No backup and restore
Backup and restore features Multi-threaded architecture

ElastiCache Security

Caching Patterns