advancedTop 100 Interview Questions
Why might a company choose active-passive disaster recovery over active-active across regions?
Active-active offers better RTO (failover is just traffic rerouting) but requires solving multi-region data consistency and roughly doubles steady-state cost; active-passive is simpler and cheaper day-to-day, trading off a slower failover (promoting/spinning up the standby) — the right choice depends on the business's actual RTO tolerance versus budget.
Ready to master this question?
Generate a complete walkthrough — background, the full answer in plain language, a working code example explained line by line, a real-world scenario, common mistakes, and how this same question gets asked in different ways.
Sign in to generate a response