What it is: A service that provides best-practice checks and recommendations for your AWS account.

What it’s for:

• Identify cost optimization, security issues, performance improvements, and fault tolerance gaps.

Key ideas:

• Categories commonly include: cost, security, fault tolerance, performance, service limits.

Exam cues:

• “get recommendations to reduce costs and improve security” → Trusted Advisor.

Hard words:

• *recommendation* /ˌrekəmenˈdeɪʃn/: khuyến nghị
• *fault tolerance* /fɔːlt ˈtɑːlərəns/: chịu lỗi
• *service limit* /ˈsɝːvɪs ˈlɪmɪt/: giới hạn dịch vụ