Multi Tenancy and Shared Platform Security Questions

Designing and operating platforms that host multiple teams or customers while ensuring isolation, security, and fair resource sharing. This includes tenancy model tradeoffs such as single tenant versus shared clusters or accounts, logical isolation techniques such as namespaces and virtual networks, role based access control design, quota and resource partitioning, audit logging and tenant level observability, secret management and encryption, preventing noisy neighbor and data leakage scenarios, admission policies and enforcement points, onboarding and offboarding flows, and compliance and auditing implications. Candidates should be able to evaluate isolation approaches, propose secure onboarding and provisioning flows, and explain testing and incident response strategies for multi tenancy platforms.