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A company's application on EC2 instances relies on a Single-AZ RDS for MySQL DB instance. The SysOps administrator needs to ensure failover to minimize downtime.
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Question 381 - SOA-C02 discussion

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Users of a company's internal web application recently experienced application performance issues for a brief period The application includes frontend web servers that run in an Amazon Elastic Kubernetes Service (Amazon EKS) cluster The application also includes a bacKend Amazon Aurora PostgreSQL DB cluster that includes one DB instance.

A SysOps administrator determines that the source of the performance issues was high utilization of the DB cluster. The single writer instance experienced more than 90% utilization for 11 minutes The cause of the high utilization was an automated report that is scheduled to run one time each week

What should the SysOps administrator do to ensure that users do not experience performance Issues each week when the report runs?

A.
Increase the size of the DB instance. Monitor the performance during the next scheduled run of the report
Answers
A.
Increase the size of the DB instance. Monitor the performance during the next scheduled run of the report
B.
Add a reader instance. Change the database connection string of the report application to use the newly created reader instance.
Answers
B.
Add a reader instance. Change the database connection string of the report application to use the newly created reader instance.
C.
Add another writer instance Change the database connection string of the report application to use the newly created writer instance.
Answers
C.
Add another writer instance Change the database connection string of the report application to use the newly created writer instance.
D.
Configure auto scaling for the DB cluster Set the minimum capacity units, maximum capacity units, and target utilization
Answers
D.
Configure auto scaling for the DB cluster Set the minimum capacity units, maximum capacity units, and target utilization
Suggested answer: A

Explanation:

Increasing DB Instance Size:

Increasing the instance size provides more CPU and memory resources, which can help handle higher loads.

Steps:

Go to the AWS Management Console.

Navigate to RDS and select the DB instance.

Modify the instance to increase its size.

Apply the changes during the next maintenance window or immediately if it is a critical issue.

Monitoring Performance:

After resizing, monitor the instance during the next report run to ensure that it handles the load effectively.

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asked 16/09/2024
Victor Platonov
34 questions
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