A Database Specialist Is Troubleshooting an Application Connection Failure on an Amazon

question 130

Multiple Choice

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?

• A) After a database crash, Aurora needed to replay the redo log from the last database checkpoint
• B) The client-side application is caching the DNS data and its TTL is set too high
• C) After failover, the Aurora DB cluster needs time to warm up before accepting client connections
• D) There were no active Aurora Replicas in the Aurora DB cluster

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Definitions:

1860 Convention

Refers to the Democratic National Convention of 1860, which was pivotal in the lead-up to the American Civil War, highlighting deep divisions over slavery.

Charleston

A historic city in South Carolina known for its well-preserved architecture, rich history, and significant role in the American Civil War.

Constitutional Union Party

A political party in the United States formed in 1860, which sought to avoid secession by focusing on the Constitution and the Union without addressing the contentious issue of slavery.