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Given this auto-scaling target tracking policy snippet:

medium🧠 Conceptual Q13 of 15
DynamoDB - Cost Optimization and Monitoring
Given this auto-scaling target tracking policy snippet:
{
  "TargetValue": 70.0,
  "ScaleInCooldown": 60,
  "ScaleOutCooldown": 60
}

What does the TargetValue represent?
AThe maximum capacity units allowed
BThe cooldown time in seconds
CThe desired utilization percentage of capacity
DThe minimum capacity units allowed
Step-by-Step Solution
Solution:
  1. Step 1: Understand TargetValue meaning

    TargetValue sets the target utilization percentage for capacity usage.
  2. Step 2: Analyze options

    The desired utilization percentage of capacity correctly describes TargetValue as desired utilization percent (70%).
  3. Final Answer:

    The desired utilization percentage of capacity -> Option C
  4. Quick Check:

    TargetValue = utilization percent = C [OK]
Quick Trick: TargetValue sets target usage percent, not capacity units [OK]
Common Mistakes:
MISTAKES
  • Confusing TargetValue with capacity limits
  • Mixing cooldown times with TargetValue
  • Thinking TargetValue is a fixed capacity number

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