Assess learners' ability to design a secure, scalable microservices architecture that integrates automated CI/CD pipelines, comprehensive observability, service mesh capabilities (traffic management, mTLS, policy), and chaos engineering practices; require architectural diagrams, pipeline components, security controls (identity, secrets, network policies), observability strategy (tracing, metrics, logging, SLOs, alerting), service-mesh trade-offs, and a chaos-testing plan with hypotheses, blast-radius controls, and rollback procedures, plus justification of technology choices and operational runbooks.