AWS - Auto Scaling
Which JSON key is required to specify the metric for a target tracking scaling policy in AWS Auto Scaling?
Which JSON key is required to specify the metric for a target tracking scaling policy in AWS Auto Scaling?
easy📝 Syntax Q3 of 15
Step-by-Step Solution
Solution:
Step 1: Identify metric specification key
Target tracking policies use "PredefinedMetricSpecification" or "CustomizedMetricSpecification" to define the metric.Step 2: Differentiate from other keys
"TargetValue" sets the target number, "StepAdjustments" and "ScalingAdjustment" are for step and simple policies.Final Answer:
"PredefinedMetricSpecification" -> Option AQuick Check:
Metric key for target tracking = PredefinedMetricSpecification [OK]
Quick Trick: Metric key in target tracking is PredefinedMetricSpecification [OK]
Common Mistakes:
- Using StepAdjustments for target tracking
- Confusing TargetValue with metric key
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