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AWS Certified Solutions Architect study material · question 162 of 500

What is the essential difference between pilot light and warm standby?

  1. Warm standby uses one Region, while pilot light uses two
  2. Warm standby requires infrastructure as code, while pilot light does not
  3. Pilot light must be switched on first, while warm standby already serves traffic at reduced capacity
  4. Pilot light replicates data, while warm standby does not
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Answer: C. Pilot light must be switched on first, while warm standby already serves traffic at reduced capacity

Both hold copies in the recovery Region; the distinction is that warm standby needs only scaling up, whereas pilot light needs turning on first.

Source: Disaster recovery options in the cloud (Amazon Web Services) — Warm standby — Note

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