Amazon Exam SOA-C02 Topic 6 Question 72 Discussion

Actual exam question for Amazon's SOA-C02 exam

Question #: 72
Topic #: 6

A company has a memory-intensive application that runs on a fleet of Amazon EC2 instances behind an Elastic Load Balancer (ELB). The instances run in an Auto Scaling group. A Sysops administrator must ensure that the application can scale based on the number of users that connect to the application.

Which solution will meet these requirements?

ACreate a scaling policy that will scale the application based on the ActiveConnectionCount Amazon CloudWatch metric that is generated from the ELB.

BCreate a scaling policy that will scale the application based on the mem used Amazon CloudWatch metric that is generated from the ELB.

CCreate a scheduled scaling policy to increase the number of EC2 instances in the Auto Scaling group to support additional connections.

DCreate and deploy a script on the ELB to expose the number of connected users as a custom Amazon CloudWatch metric. Create a scaling policy that uses the metric.

Show Suggested Answer

Suggested Answer: D

This solution will allow the application to scale based on the number of users that connect to the application. The other solutions (creating a scaling policy that uses the ActiveConnectionCount Amazon CloudWatch metric generated from the ELB, creating a scaling policy that uses the mem used Amazon CloudWatch metric generated from the ELB, or creating a scheduled scaling policy to increase the number of EC2 instances in the Auto Scaling group to support additional connections) will not meet the requirements, as they do not allow the application to scale based on the number of users that connect to the application.

by Sylvia at Apr 02, 2023, 07:49 AM

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