🛡️ AWS Trusted Advisor Overview
AWS Trusted Advisor is a service that provides real-time account assessments to help you follow AWS best practices for cost optimization, performance, security, fault tolerance, service limits, and operational excellence.
📘 1. What is AWS Trusted Advisor?
Trusted Advisor continuously checks your AWS environment and gives recommendations to help you:
- Reduce costs
- Improve performance
- Enhance security
- Increase fault tolerance
- Monitor service limits
You can access it directly from the AWS Management Console or programmatically via the AWS Support API (available with Business or Enterprise Support Plans).
🧩 2. Categories of Checks
| Category | Description | Example Checks |
|---|---|---|
| Cost Optimization | Identify unused or underutilized resources | Idle EC2 Instances, Unassociated Elastic IPs |
| Performance | Improve the speed and efficiency of workloads | EC2 Instance Type Recommendations |
| Security | Detect security risks and public resources | S3 Public Buckets, RDS Public Snapshots |
| Fault Tolerance | Enhance system availability and resilience | EBS Snapshot Age, AZ Redundancy |
| Service Limits | Monitor AWS resource quotas | EC2 Instance Limits, DynamoDB Capacity |
| Operational Excellence | Improve operational readiness | IAM Role Best Practices, Monitoring Checks |
🔐 3. Types of Trusted Advisor Checks
| Type | Access Level | Description |
|---|---|---|
| Core Checks | ✅ Free (all AWS accounts) | Basic security and service limit checks |
| Full Checks | 🔒 Business / Enterprise Support | 100+ comprehensive checks across all categories |
⚙️ 4. Example Dashboard Insights
When you open Trusted Advisor in the console, you’ll see:
- ✅ Recommendations (e.g., reduce cost or improve security)
- ⚠️ Investigations (items requiring attention)
- 🚫 Excluded items (ignored checks)
Example findings:
- S3 bucket with global public access
- Security group rules allowing unrestricted inbound access
- EBS or RDS snapshots shared publicly
🔗 5. Integration and Programmatic Access
- With Business or Enterprise Support Plans, you can access Trusted Advisor data through the AWS Support API.
- This allows automation of compliance reporting and remediation workflows.
🧠 6. Key Points for AWS Exam
| Topic | Key Detail |
|---|---|
| Purpose | Assess AWS account health and best practices |
| Free vs Paid | Core checks (free) / Full checks (paid) |
| Categories | 6 main pillars (Cost, Performance, Security, Fault Tolerance, Service Limits, Operational Excellence) |
| API Access | Only for Business/Enterprise support |
| Exam Tip | Trusted Advisor = automated account assessment tool |
🖼️ 7. Console View (Example Screenshot)
AWS Console → Trusted Advisor
Shows recommendations, investigations, and service limit summaries.
✅ 8. Summary
AWS Trusted Advisor helps maintain a secure, optimized, and compliant cloud environment.
To unlock full functionality, upgrade to a Business or Enterprise Support Plan.
Next Step: Explore AWS Trusted Advisor Documentation