1. Object, Block, and File Storage
Amazon S3 is the central object store of the AWS platform, advertising eleven nines of durability (99.999999999%) by automatically spreading data across multiple devices and facili...
Read full chapter →The essential AWS Solutions Architect Associate (SAA-C03) cheat sheet: 7 concise chapters you can read in minutes, distilled from the full deck. When you're ready, drill the flashcards or test yourself under exam conditions.
Amazon S3 is the central object store of the AWS platform, advertising eleven nines of durability (99.999999999%) by automatically spreading data across multiple devices and facili...
Read full chapter →EC2 instance families are lettered to advertise their shape: C is compute-heavy, M is balanced, R is memory-rich, and T is burstable and cheap for variable workloads. Choosing amon...
Read full chapter →Inside a VPC, the choice of how instances reach the internet or AWS services affects both security and cost. A NAT Gateway lets private-subnet resources make outbound calls (for pa...
Read full chapter →For relational workloads, Amazon RDS offers managed engines like PostgreSQL, MySQL, and SQL Server. Multi-AZ deployments provide high availability through a synchronous standby in...
Read full chapter →Application integration on AWS is a layered set of services. Amazon SQS is a managed message queue offering at-least-once delivery; Standard queues deliver in best-effort order wit...
Read full chapter →AWS identity begins with IAM. An IAM user is a long-lived identity for a person or workload, a group attaches shared policies to multiple users, and a role provides temporary crede...
Read full chapter →Observability in AWS splits naturally between what happened and how the system is behaving. CloudTrail records the API audit trail: who called which API on which resource. By defau...
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