Application Integration
CoreAmazon SNS
Explicit notification target for services and CloudWatch alarms.
Key points
- SNS transports notifications from publishers such as CloudWatch alarms to confirmed, authorized subscribers.
Best-known use cases
- D1.2 and D3.2: deliver an alarm or service-event notification to the required responder endpoint.
What candidates often confuse it with
- SNS provides publication and fanout, whereas EventBridge matches event patterns and SQS retains buffered work.
Key takeaway
An alarm state is not proof of SNS delivery; trace the topic policy, subscription, and endpoint result.
Related services
- Amazon EventBridge
- Amazon SQS
- AWS Step Functions
Relevant exam tasks
- D1.2 — Task 1.2: Identify and remediate issues by using monitoring and availability metrics.
- 1.2.1 — Analyze performance metrics and automate remediation strategies by using AWS services and functionality (for example, CloudWatch, Lambda, AWS Systems Manager, CloudTrail, Kiro, AWS DevOps Agent).
- D3.2 — Task 3.2: Automate the management of existing resources.
- 3.2.1 — Use AWS services to automate operational processes (for example, Systems Manager).