Your team is responsible for a highly available microservices application running on GKE. You want to proactively identify weaknesses in the system's resilience by intentionally injecting failures into the production environment. Which TWO practices or tools should you utilize? (Select TWO)

Chaos Engineering is the practice of experimenting on a system to build confidence in its capability to withstand turbulent conditions in production. It must be controlled and measurable. Anthos Service Mesh (Istio) is an excellent tool for this, as it allows you to inject HTTP aborts or delays at the network layer without changing application code. Dedicated chaos tools (like Chaos Mesh) can simulate infrastructure failures like pod crashes or node network partitions.