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AWS Certified Developer Associate DVA-C02 Practice Question

Which service is primarily used to gather insights from system-wide metrics, set up alarms based on specific conditions, and aggregate log data from various sources within a central platform?

Amazon Kinesis
Amazon S3
Amazon CloudWatch
AWS CloudTrail

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Answer Description

Amazon CloudWatch is the correct answer because it is explicitly designed to monitor applications and infrastructure, allowing you to collect metrics, create alarms, and access logs in a unified way. This aids in observing system performance and operational health. Amazon Kinesis focuses on real-time data streaming and analysis, not on the comprehensive monitoring capabilities provided by CloudWatch. AWS CloudTrail is a governance, compliance, and auditing service that records API calls, including actions taken by AWS services, but does not offer the extensive metric and alarm features of CloudWatch. While Amazon S3 can be used for storing log data, it is mainly a storage service and lacks the active monitoring and alerting facilities that CloudWatch offers.

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