High Availability Security Infrastructure Questions

Designing security controls and detection systems so they remain effective during outages and scale without becoming single points of failure. Topics include redundant authentication and identity infrastructure, distributed detection pipelines and collectors, failover strategies for logging and alerting, graceful degradation of security controls, disaster recovery and backup validation, consistency of policy enforcement across regions, and planning for detection and response during partial outages. Interviewers assess the candidate's understanding of fault tolerance trade offs for security components and business continuity considerations.