Topic 1 Question 182
A SysOps administrator is investigating a company’s web application for performance problems. The application runs on Amazon EC2 instances that are in an Auto Scaling group. The application receives large traffic increases at random times throughout the day. During periods of rapid traffic increases, the Auto Scaling group is not adding capacity fast enough. As a result, users are experiencing poor performance.
The company wants to minimize costs without adversely affecting the user experience when web traffic surges quickly. The company needs a solution that adds more capacity to the Auto Scaling group for larger traffic increases than for smaller traffic increases.
How should the SysOps administrator configure the Auto Scaling group to meet these requirements?
Create a simple scaling policy with settings to make larger adjustments in capacity when the system is under heavy load.
Create a step scaling policy with settings to make larger adjustments in capacity when the system is under heavy load.
Create a target tracking scaling policy with settings to make larger adjustments in capacity when the system is under heavy load.
Use Amazon EC2 Auto Scaling lifecycle hooks. Adjust the Auto Scaling group’s maximum number of instances after every scaling event.
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コメント(16)
- 正解だと思う選択肢: C
C AWS recommend use "target tracking scaling". "We strongly recommend that you use a target tracking scaling policy to scale on a metric like average CPU utilization or the RequestCountPerTarget metric from the Application Load Balancer. " https://docs.aws.amazon.com/autoscaling/ec2/userguide/as-scaling-simple-step.html
👍 7dangji2023/01/05 - 正解だと思う選択肢: B
B for me
👍 4michaldavid2022/12/12 - 正解だと思う選択肢: C
With a target tracking scaling policy, the SysOps administrator can define a target value for a specific metric that the Auto Scaling group will try to maintain. When the metric exceeds the target value, the policy will automatically add more instances to the Auto Scaling group. By configuring the scaling policy to make larger adjustments in capacity when the system is under heavy load, the Auto Scaling group will add more capacity for larger traffic increases. This will help to improve the user experience during periods of rapid traffic increases, without incurring unnecessary costs during normal traffic periods.
👍 4Vivec2023/03/09
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