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Answer: Compute Optimizer does not support the instance types of the missing instances.
**AWS Compute Optimizer** analyzes metrics to generate optimization recommendations, but it only supports specific Amazon EC2 instance types. If an instance type is newly released or belongs to certain older families that are not yet or no longer supported, Compute Optimizer cannot analyze them, and they will be missing from the dashboard. While insufficient metric data (less than 30 hours) is also a factor that can delay recommendations, the direct reason newly released or specific older instance types do not show up is a lack of support for those particular instance type families.
Author: Ritesh Yadav
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Question #71 A CloudOps engineer is using AWS Compute Optimizer to generate recommendations for a fleet of Amazon EC2 instances. Some of the instances use newly released instance types, while other instances use older instance types. After the analysis is complete, the CloudOps engineer notices that some of the EC2 instances are missing from the Compute Optimizer dashboard. What is the likely cause of this issue?
A
The missing instances have insufficient historical Amazon CloudWatch metric data for analysis.
B
Compute Optimizer does not support the instance types of the missing instances.
C
Compute Optimizer already considers the missing instances to be optimized.
D
The missing instances are running a Windows operating system.
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