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AWS Certified Solutions Architect study material · question 165 of 500

Which two advantages does an Aurora global database offer over cross-Region RDS read replicas? Choose two.

  1. Promotion of a secondary to read and write in less than a minute
  2. Synchronous writes to every Region before a commit is acknowledged
  3. Automatic re-encryption of data during failover
  4. Replication to the secondary Region typically in under a second
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Answer: D. Replication to the secondary Region typically in under a second
A. Promotion of a secondary to read and write in less than a minute

Aurora global databases use dedicated infrastructure, replicate in under a second, and promote a secondary in under a minute even during a full regional outage.

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

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