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SOA-C02 · Question #473

ASysOps administrator configures an application to run on Amazon EC2 instances behind an Application Load Balancer (ALB) in a simple scaling Auto Scaling group with the default settings. The Auto…

The correct answer is B. The Auto Scaling group will launch one EC2 instance and will wait for the default cooldown period. https://docs.aws.amazon.com/autoscaling/ec2/userguide/consolidated-view-of-warm-up-and- cooldown-settings.html

Submitted by andres_qro· Mar 30, 2026Cost and Performance Optimization

Question

ASysOps administrator configures an application to run on Amazon EC2 instances behind an Application Load Balancer (ALB) in a simple scaling Auto Scaling group with the default settings. The Auto Scaling group is configured to use the RequestCountPerTarget metric for scaling. The SysOps administrator notices that the RequestCountPerTarget metric exceeded the specified limit twice in 180 seconds. How will the number of EC2 instances in this Auto Scaling group be affected in this scenario?

Options

  • AThe Auto Scaling group will launch an additional EC2 instance every time the
  • BThe Auto Scaling group will launch one EC2 instance and will wait for the default cooldown period
  • CThe Auto Scaling group will send an alert to the ALB to rebalance the traffic and not add new EC2
  • DThe Auto Scaling group will try to distribute the traffic among all EC2 instances before launching

How the community answered

(23 responses)
  • A
    4% (1)
  • B
    70% (16)
  • C
    9% (2)
  • D
    17% (4)

Explanation

https://docs.aws.amazon.com/autoscaling/ec2/userguide/consolidated-view-of-warm-up-and- cooldown-settings.html

Topics

#Auto Scaling#simple scaling#cooldown period#RequestCountPerTarget

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