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Arquitetura profissional de soluções AWS alinhada ao exame SAA-C03
O que muda do Practitioner para o SAA-C03, os 4 domínios do exame, pré-requisitos e a mentalidade do arquiteto AWS.
Policy JSON em profundidade, STS AssumeRole, cross-account access, AWS Organizations, SCPs, Identity Center (SSO).
VPC design real, subnets públicas/privadas, NAT Gateway vs NAT Instance, VPC Peering, Transit Gateway, PrivateLink, VPN vs Direct Connect.
Route 53 routing policies (simple, weighted, latency, failover, geo, multi-value), CloudFront behaviors, Global Accelerator.
Purchasing options profundos, Auto Scaling Groups, ALB vs NLB vs GWLB, target groups, placement groups, health checks.
ECS (Fargate vs EC2 launch type), EKS (Kubernetes managed), service discovery, service mesh, quando escolher cada um.
Lambda deep dive (cold start, concurrency, layers, destinations), API Gateway (REST vs HTTP), Step Functions workflows.
Todas storage classes, lifecycle policies, versioning, replication (CRR/SRR), Object Lock, encryption (SSE-S3, SSE-KMS, SSE-C, CSE).
EBS volume types (gp3, io2, st1, sc1), snapshots, EFS performance/throughput modes, FSx Windows/Lustre/NetApp, Storage Gateway.
RDS Multi-AZ vs Read Replicas, Aurora (cluster + Serverless v2), DynamoDB (GSI/LSI, DAX, Streams, on-demand vs provisioned).
ElastiCache Redis vs Memcached, DAX para DynamoDB, CloudFront cache behaviors, patterns (cache-aside, write-through).
SQS (Standard vs FIFO, DLQ), SNS (topic fanout), EventBridge (event bus, rules, schedules), Kinesis (Streams vs Firehose vs Analytics).
KMS envelope encryption, CMK vs AWS managed key, Secrets Manager vs Parameter Store, WAF rules, Shield Standard vs Advanced.
Backup & Restore, Pilot Light, Warm Standby, Multi-Site Active-Active — custo vs RTO/RPO, AWS Backup, cross-region DR.
Reserved Instances (standard/convertible), Savings Plans (compute/EC2), Spot Instances, Instance Scheduler, Trusted Advisor, Cost Allocation Tags.
Athena (serverless SQL on S3), EMR (Hadoop/Spark), Kinesis Data Streams vs Firehose, Glue ETL, Redshift Spectrum, QuickSight.
DMS + SCT para migração de bancos heterogêneos, MGN para lift-and-shift, DRS para DR, DataSync, Transfer Family e Snow Family em cenários arquiteturais.
Direct Connect + VIFs, Site-to-Site VPN, Client VPN, PrivateLink, Gateway vs Interface Endpoints, Route 53 Resolver híbrido e Transit Gateway inter-region.
Arquiteturas de inferência (real-time endpoint, serverless, async, batch), SageMaker + MLOps, integração com Bedrock e data lake alimentando pipelines de ML.
25 questões no estilo oficial SAA-C03 com explicações detalhadas. Arquitetura, decisões de design, trade-offs de custo e resiliência.
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