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AWS Certified Solutions Architect study material · question 265 of 500

Why is changing Route 53 weighted routing weights a weaker failover mechanism than routing controls?

  1. It requires a DNS zone transfer to take effect
  2. It cannot direct traffic between Regions
  3. It disables the hosted zone's health checks
  4. It is a control plane operation, so less dependable during a disaster
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Answer: D. It is a control plane operation, so less dependable during a disaster

Weight changes go through the control plane, whereas Application Recovery Controller routing controls are callable from a data plane API.

Source: Disaster recovery options in the cloud (Amazon Web Services) — Pilot light — traffic management

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