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DOP-C02 Domain 6: Reliability and Resilience

While troubleshooting latency, engineers determine they must protect against regional failure. Which action is appropriate?

Multiple choice — select one answer

Answer choices

  1. a. Separate clusters/accounts per cell
  2. b. Multi-Region active-passive or active-active
  3. c. Adjust visibility to processing time
  4. d. Maintain current AMIs for the web tier in the DR Region; cross-Region RDS read replica; on disaster launch a CloudFormation stack, promote the replica, update DNS to the new load balancer.

Architectural breakdown & explanation

Multi-Region designs address Regional disasters.

Correct answer(s): b. Multi-Region active-passive or active-active

Exam domain: Domain 6: Reliability and Resilience (14% weight on the official guide).

Official documentation & study links

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