Defense in Depth Architecture Questions

Designing and evaluating layered security architectures that combine independent preventive, detective, and corrective controls across network, host, application, identity, and data layers so that compromise of one control does not result in a full breach. Core skills include selecting complementary controls, defining control boundaries, designing network segmentation and isolation patterns, implementing least privilege identity models, and instrumenting observability to validate control effectiveness. Candidates should also be able to propose compensating controls when a primary mitigation cannot be implemented, assess residual risk, reason about trade offs between security and availability or developer productivity, and document architecture decisions for stakeholders.