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Availability is about access; reliability is about correct performance.

Disaster recovery ensures systems can restore services and data after major disruptions.

Dependency failures can disrupt applications, but resilience patterns can help manage them.

Cache penetration occurs when requests for non-existent data overload the database.

A single component's failure can take down your entire application, even with redundancy.

The Bulkhead Pattern isolates resources to protect critical workloads from failures.

Fault domains help prevent multiple servers from failing together in an architecture.

Disaster Recovery Testing verifies that your recovery plan works effectively in real situations.

Fallbacks allow systems to handle failures safely and maintain user experience.

Choosing the right boundaries for microservices is crucial for effective architecture.

A Circuit Breaker helps prevent system failures by stopping calls to unhealthy services.

A CDN speeds up web applications by caching content closer to users.

API Gateway, Proxy, and Load Balancer serve different roles in managing requests and traffic in systems.

Functional requirements define what a system does, while non-functional requirements define how it performs.

Alerting helps notify the right people about production issues quickly.