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Which AWS service primarily monitors operational metrics such as CPU utilization, latency, or disk I/O for EC2, RDS, and other services?
Explanation:
Amazon CloudWatch is AWS's monitoring service that collects and tracks metrics, monitors log files, sets alarms, and automatically reacts to changes in AWS resources. It is specifically designed to monitor operational metrics like CPU utilization, latency, disk I/O, and other performance indicators for services such as EC2, RDS, and other AWS resources.