Which practice intentionally tests resilience by introducing failures into a system?

• A. Risk register
• B. Chaos engineering
• C. Waterfall method
• D. Stakhanovite Movement

Answer: (B)

Chaoss engineering centers on resilience by deliberately introducing failures into a system to see how it behaves, recovers, and recovers under stress. The idea is to run controlled experiments—like simulating server outages, latency spikes, or dependency failures—to reveal weaknesses, validate fault tolerance, and improve incident response and automatic recovery. This approach focuses on learning from real faults, not just verifying that things work under normal conditions.

A risk register simply tracks potential risks and mitigation plans; it doesn’t test how a system handles failures. The Waterfall method is a linear development process without built-in resilience testing through fault injection. The Stakhanovite Movement is unrelated, referring to a historical labor effort rather than anything about systems or testing.