How would you handle a practical scenario involving Isolation Levels in SQL Server?

For a practical scenario involving Isolation Levels, I would first clarify the business goal, scale, constraints, and the failure or quality attribute being tested. Isolation levels control how concurrent transactions can observe and affect each other. The scenario centers on when Read Committed Snapshot can reduce blocking and what tradeoffs it introduces compared with traditional Read Committed. I would then compare the main alternatives and tradeoffs, identify likely failure modes, and explain how I would validate the solution through testing, observability, security controls, and recovery or rollback planning.