Exam AWS Certified Database - Specialty topic 1 question 309 discussion

Exam question from Amazon's AWS Certified Database - Specialty

Question #: 309
Topic #: 1

[All AWS Certified Database - Specialty Questions]

A database specialist is working with a company to launch a new website. The website accesses a database on an Amazon Aurora MySQL DB cluster that is configured with several Aurora Replicas. The website will replace an on-premises website that is connected to a legacy relational database. Because of stability issues in the legacy database, the company wants to test the resiliency of the Aurora cluster.

Which action can the database specialist take to test the resiliency of the Aurora cluster?

A. Simulate a failover test of the Aurora cluster resiliency by using the failover testing feature from the Resiliency Toolkit.
B. Submit a fault injection query to one of the Aurora Replica instances by connecting to the endpoint for the Aurora Replica.
C. Simulate a failover test of the Aurora cluster by using the PromoteReadReplica API operation to promote one of the read replica DB instances to a standalone Aurora DB instance.
D. Use Amazon RDS Performance Insights to capture resiliency-related metrics for the Aurora cluster during periods of high load.

Show Suggested Answer

Suggested Answer: B 🗳️

by TQM__9MD at July 14, 2023, 12:54 a.m.

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Comments

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Sathish_dbs

1 year, 8 months ago

Selected Answer: B

You can submit a fault injection query to one of your Aurora Replica instances by connecting to the endpoint for the Aurora Replica

upvoted 2 times

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Pranava_GCP

1 year, 9 months ago

Selected Answer: B

B. Submit a fault injection query https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/AuroraMySQL.Managing.FaultInjectionQueries.html

upvoted 2 times

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Windy

1 year, 10 months ago

It's B

upvoted 1 times

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TQM__9MD

1 year, 11 months ago

Selected Answer: B

B is answer https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/AuroraMySQL.Managing.FaultInjectionQueries.html

upvoted 3 times

Pranava_GCP

1 year, 9 months ago

agreed, from above link "You can test the fault tolerance of your Aurora MySQL DB cluster by using fault injection queries. Fault injection queries are issued as SQL commands to an Amazon Aurora instance. They let you schedule a simulated occurrence of one of the following events: A crash of a writer or reader DB instance A failure of an Aurora Replica A disk failure Disk congestion"

upvoted 1 times

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