Architecture diagram, AWS Associate Level, resilient system design, scalable infrastructure, high availability, disaster recovery, load balancers, auto-scaling, EC2 instances, RDS databases, S3 storage buckets, Lambda functions, API gateways, CloudWatch monitoring, alarm systems, notification workflows, DevOps pipelines, Jenkins integration, Terraform IaC, secure VPC networks, subnets, route 53 DNS management, IAM roles, policies, and permissions, AWS Well-Architected Framework, best practices, highly available, scalable, fault-tolerant, and efficient system design.