This module introduces the core concepts behind resilient system design. Learners will explore why failures are inevitable, how resilient systems differ from traditional architectures, and the foundational principles used to build systems that can withstand, adapt to, and recover from disruptions. The module sets the mindset and technical baseline required for designing reliable and fault-aware systems.

This module focuses on designing systems that remain available despite failures. Learners will explore high availability concepts, fault tolerance techniques, and architectural patterns used to eliminate single points of failure. The module emphasizes practical design decisions that improve uptime while balancing cost and complexity.

This module focuses on preparing systems and teams to recover from major disruptions. Learners will explore backup and recovery strategies, define recovery objectives, design disaster recovery testing approaches, and create operational runbooks that support consistent and effective recovery. The module emphasizes planning, decision-making, and operational readiness rather than tool-specific implementation.

This module focuses on maintaining system reliability through effective monitoring, observability, and structured incident management. Learners will explore how logs, metrics, and traces provide system visibility, how alerting strategies support timely response, and how post-incident reviews drive continuous improvement. The module emphasizes operational effectiveness and learning from incidents rather than tool-specific implementation.