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DBS-C01 · Question #47

DBS-C01 Question #47: Real Exam Question with Answer & Explanation

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Submitted by certguy· Mar 6, 2026Monitoring and Troubleshooting

Question

A Database Specialist is troubleshooting an application connection failure on an Amazon Aurora DB cluster with multiple Aurora Replicas that had been running with no issues for the past 2 months. The connection failure lasted for 5 minutes and corrected itself after that. The Database Specialist reviewed the Amazon RDS events and determined a failover event occurred at that time. The failover process took around 15 seconds to complete. What is the MOST likely cause of the 5-minute connection outage?

Options

  • AAfter a database crash, Aurora needed to replay the redo log from the last database checkpoint
  • BThe client-side application is caching the DNS data and its TTL is set too high
  • CAfter failover, the Aurora DB cluster needs time to warm up before accepting client connections
  • DThere were no active Aurora Replicas in the Aurora DB cluster

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Topics

#Aurora Failover#DNS Caching#Client Connectivity#Application Troubleshooting
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