| 1 | What are the failure and resilience considerations for multi-cluster ArgoCD? ArgoCD › Multi-cluster | ArgoCD | Multi-cluster | Advanced |
| 2 | How would you deploy Redis Sentinel across multiple data centers or availability zones to maximize resilience against a localized failure? Redis › Redis Sentinel & High Availability | Redis | Redis Sentinel & High Availability | Advanced |
| 3 | How does Direct Connect support Link Aggregation Groups to increase bandwidth and provide additional resilience? AWS › AWS Direct Connect & Hybrid Connectivity | AWS | AWS Direct Connect & Hybrid Connectivity | Advanced |
| 4 | How should an organization design a comprehensive database resilience and disaster recovery strategy combining Multi-AZ, read replicas, cross region replication, and automated backups? AWS › RDS & Databases | AWS | RDS & Databases | Advanced |
| 5 | How can you properly implement an effective retry strategy with exponential backoff for a genuinely failed network request, meaningfully improving your app's own overall resilience against genuinely temporary, transient network issues? Flutter › Networking with HTTP & Dio | Flutter | Networking with HTTP & Dio | Advanced |
| 6 | How do you implement resilient HTTP calls (retries, timeouts) in MAUI? .NET MAUI › Networking & APIs | .NET MAUI | Networking & APIs | Intermediate |
| 7 | How do you implement resilient HTTP calls (retries, timeouts) in MAUI? .NET MAUI › Networking & APIs | .NET MAUI | Networking & APIs | Intermediate |
| 8 | How do you generate and use a strongly-typed gRPC client in a .NET application to call a gRPC service? ASP.NET Core › gRPC Services | ASP.NET Core | gRPC Services | Intermediate |
| 9 | How do you configure gRPC to work correctly when hosted behind a reverse proxy or load balancer, given gRPC's reliance on HTTP/2? ASP.NET Core › gRPC Services | ASP.NET Core | gRPC Services | Intermediate |
| 10 | What is certificate pinning, and why is it generally discouraged for typical web API scenarios despite its security benefits? ASP.NET Core › HTTPS, Certificates & Transport Security | ASP.NET Core | HTTPS, Certificates & Transport Security | Intermediate |
| 11 | Why is it important to validate a server's TLS certificate when making outbound HttpClient calls to external services, and what's the risk of disabling certificate validation? ASP.NET Core › HTTPS, Certificates & Transport Security | ASP.NET Core | HTTPS, Certificates & Transport Security | Intermediate |
| 12 | How would you configure HttpClient with custom timeouts, a proxy, and connection pooling behavior, and what's the difference between a connection timeout and a request/response timeout? Java › Java Networking & HTTP Client | Java | Java Networking & HTTP Client | Intermediate |
| 13 | How would you implement deadline/timeout propagation across a chain of gRPC calls to prevent cascading resource exhaustion when a downstream service is slow? ASP.NET Core › gRPC Services | ASP.NET Core | gRPC Services | Advanced |
| 14 | How would you set a per-check timeout to prevent one slow or hanging dependency check from blocking the entire /health endpoint response indefinitely? ASP.NET Core › Health Checks | ASP.NET Core | Health Checks | Advanced |
| 15 | How would you implement retry logic with exponential backoff for HTTP requests made via HttpClient, given the client doesn't provide built-in retry support natively? Java › Java Networking & HTTP Client | Java | Java Networking & HTTP Client | Advanced |