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3.4.4. DDoS Protection
💡 First Principle: DDoS Protection mitigates volumetric attacks that overwhelm network capacity. It's a separate control from WAF, which handles application-layer attacks.
Scenario: Your web applications hosted on App Service are experiencing availability issues during suspected DDoS attacks.
DDoS Protection Tiers
| Tier | Features | Cost |
|---|---|---|
| Basic | Always-on detection, automatic mitigation | Free |
| Standard | Advanced mitigation, metrics, alerts, cost protection | Per-VNet fee |
⚠️ Exam Trap: Thinking WAF protects against DDoS. WAF protects against application-layer attacks (Layer 7). DDoS Protection Standard protects against volumetric and protocol attacks (Layer 3-4).
Written byAlvin Varughese
Founder•15 professional certifications