What's changed: Deepened SOA-C02 Chapter 2 to Associate depth (tables, scenarios, FAQ, traps; localized figures)
2.4In-scope services for reliability and business continuity
A roundup of in-scope SOA-C03 services for reliability and business continuity—databases, storage, and disaster recovery.
2.4.1In-scope services for reliability and business continuity
For reliability and business continuity, focus on purpose-built databases and storage plus recovery control. Databases: Amazon Aurora (MySQL/PostgreSQL-compatible, highly available; Amazon Aurora Serverless v2 auto-scales to demand), Amazon RDS (managed RDBMS; Amazon RDS Proxy pools connections to handle spikes), Amazon DynamoDB (key-value; Amazon DynamoDB Accelerator is a microsecond cache), and Amazon ElastiCache (in-memory). Storage: Amazon Elastic Block Store (block for EC2), Amazon Elastic File System and Amazon FSx (shared files), AWS Storage Gateway (hybrid), and AWS Backup (centralized backup). Recovery control: Amazon Application Recovery Controller to perform multi-Region/AZ failover safely.
2.4.2Section summary
- DB: Aurora/Aurora Serverless v2, RDS/RDS Proxy, DynamoDB/DAX, ElastiCache
- Storage/recovery: EBS, EFS, FSx, Storage Gateway, AWS Backup, Application Recovery Controller
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Quick check
(just a quick review)Q1. Which in-memory cache fronts DynamoDB to speed reads to microseconds?
Q2. Which service safely controls failover for multi-Region/multi-AZ applications?