Cloudwatch Flashcards
(16 cards)
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What is AWS CloudWatch?
A monitoring and observability service that collects operational data in the form of logs, metrics, and events.
What are the three main components of CloudWatch?
CloudWatch metrics, CloudWatch logs, and CloudWatch events.
What are metrics in CloudWatch?
Time-ordered data points related to the performance of AWS services, apps, or systems.
How can metrics be collected in CloudWatch?
Natively by AWS or via the CloudWatch agent for more detailed/custom metrics.
What is the CloudWatch agent used for?
Collecting metrics/logs from on-premises environments or additional EC2 instance details.
What are namespaces in CloudWatch?
Containers used to group and isolate metrics (e.g., AWS/EC2).
What is a metric in CloudWatch?
A collection of related time-series data points like CPUUtilization.
What are data points in CloudWatch?
Individual measurements with a timestamp and a value.
What are dimensions in CloudWatch?
Name-value pairs used to filter and organize metric data (e.g., InstanceId, InstanceType).
What are CloudWatch logs?
A component that collects and monitors log data from various sources.
What are CloudWatch events?
They respond to changes in AWS resources or operate on a schedule.
What is an alarm in CloudWatch?
A monitoring construct that watches a metric and triggers actions based on thresholds.
What are the states of a CloudWatch alarm?
OK, ALARM, and INSUFFICIENT_DATA.
What can CloudWatch alarms do?
Trigger SNS notifications, auto-scaling actions, or other AWS services.
How are CloudWatch metrics accessed?
Via AWS Console, CLI, or API.
