AWS SOA-C03 (CloudOps Engineer – Associate)

Amazon CloudWatch

Monitoring service for AWS metrics, logs, alarms, and dashboards

CloudWatch metric

Time-ordered set of data points identified by namespace, metric name, and dimensions

CloudWatch namespace

Container string that groups related metrics, such as AWS/EC2 or custom namespaces

CloudWatch dimension

Name–value pair used to uniquely identify a metric, such as InstanceId or AutoScalingGroupName

CloudWatch standard resolution metric

Metric with 1-minute granularity

CloudWatch high-resolution metric

Metric with 1-second to 1-minute granularity

CloudWatch custom metric

User-published metric using PutMetricData API or CloudWatch agent

CloudWatch alarm

Monitors a single metric or metric math expression and changes state based on thresholds

CloudWatch alarm states

OK, ALARM, INSUFFICIENT_DATA

CloudWatch composite alarm

Alarm that evaluates the state of other alarms using Boolean logic

CloudWatch alarm actions

Configured responses such as SNS notification, EC2 action, Auto Scaling action, or Systems Manager Automation

CloudWatch metric math

Feature that lets you perform calculations across metrics in an alarm or dashboard widget

CloudWatch dashboard

Customizable, shareable view of CloudWatch metrics and alarms

CloudWatch cross-account dashboard

Dashboard that displays metrics and alarms from multiple AWS accounts

CloudWatch Logs

Centralized log storage service for log events from AWS resources and applications

CloudWatch log group

Named group of log streams with shared retention, metric filters, and subscription filters

CloudWatch log stream

Sequence of log events from a single source such as an EC2 instance or application

CloudWatch Logs log event

Timestamped log record ingested into a log stream

CloudWatch Logs retention setting

Configuration that controls automatic deletion of log events after a set period

CloudWatch Logs metric filter

Pattern applied to log events to extract custom metrics

CloudWatch Logs subscription filter

Real-time streaming of log events to Kinesis, Lambda, or Firehose

CloudWatch Logs Insights

Query engine for analyzing log data with a specialized query language

CloudWatch Logs query

Logs Insights query that returns filtered and aggregated log events

CloudWatch Logs query schedule

Recurrent execution of a Logs Insights query with results used for monitoring

CloudWatch agent

Unified agent that collects metrics and logs from EC2, on-premises servers, and containers

CloudWatch agent configuration file

JSON or TOML file that defines collected metrics, logs, and endpoints

CloudWatch agent on EC2

Installed agent that sends OS-level metrics and application logs to CloudWatch

CloudWatch agent for ECS

Daemon running in a sidecar or Daemon task to collect container logs and metrics

CloudWatch agent for EKS

DaemonSet that collects node and pod metrics and logs to CloudWatch

CloudWatch anomaly detection

Feature that builds a band around metric values and alarms on anomalies

CloudWatch event

JSON representation of a change in AWS or an application used by EventBridge

AWS CloudTrail

Service that records API calls and console actions as events

CloudTrail event history

View of the last 90 days of management events per account and Region

CloudTrail management event

API call events that manage resources, such as CreateUser or RunInstances

CloudTrail data event

API call events on resource data, such as S3 object-level or Lambda invoke

CloudTrail Insights event

Anomalous operational event such as sudden spike in API calls

CloudTrail trail

Configuration that delivers CloudTrail events to S3, CloudWatch Logs, or EventBridge

CloudTrail organization trail

Trail that logs events for all accounts in an AWS Organization

CloudTrail log file

Compressed JSON files stored in S3 from a configured trail

CloudTrail S3 log file validation

Integrity check that uses digest files to verify log file tampering

CloudTrail Lake

Managed event data lake to query and analyze CloudTrail events

CloudTrail event selector

Configuration that controls which management and data events a trail records

AWS Managed Service for Prometheus

Managed Prometheus-compatible metrics ingestion and storage service

Managed Service for Prometheus workspace

Isolated prom-compatible metrics environment within the service

Managed Service for Prometheus remote write endpoint

HTTPS endpoint for scraping systems to push metrics

Amazon Managed Grafana

Managed Grafana workspace for dashboards and visualizations

Managed Grafana workspace

Multi-user visualization environment with integrated AWS data sources

Managed Grafana data source

Configured connection to services like CloudWatch, Prometheus, X-Ray, or others

AWS X-Ray

Distributed tracing service for requests across applications and microservices

X-Ray trace

Collection of segments that represent an end-to-end request flow

X-Ray segment

Tracing unit describing work done by a service for a single request

X-Ray subsegment

Nested tracing unit inside a segment representing downstream calls or internal operations

X-Ray service map

Graph visualization showing services, dependencies, and error rates

X-Ray sampling rule

Rule that controls the percentage of requests that are traced

X-Ray filter expression

Syntax used to filter traces for analysis in the X-Ray console

AWS User Notifications

Central service for configuring notifications across AWS services and channels

User Notifications notification configuration

Resource that defines notification channels, events, and targets

Amazon EC2

Compute service for running virtual machine instances

EC2 instance state

Lifecycle status such as pending, running, stopping, stopped, shutting-down, terminated

EC2 system status check

Health check that monitors AWS system-level issues impacting the instance

EC2 instance status check

Health check that monitors the instance’s OS-level and network reachability

EC2 instance status

Combined state of system and instance status checks

EC2 instance status alarm

CloudWatch alarm based on EC2 status metrics like StatusCheckFailed

EC2 instance metadata service v2

Token-based HTTP endpoint at 169.254.169.254 for instance metadata

EC2 placement group

Logical grouping of instances influencing placement in hardware or AZs

EC2 cluster placement group

Placement that packs instances close together for low-latency networking

EC2 spread placement group

Placement that spreads instances across underlying hardware to reduce correlated failure

EC2 partition placement group

Placement that partitions instances across isolated hardware groups

EBS-optimized instance

EC2 instance configuration that provides dedicated throughput for EBS volumes

EC2 hibernation

Feature that saves instance RAM state to EBS and stops the instance

EC2 instance profile

IAM role association resource used by EC2 instances for temporary credentials

EC2 detailed monitoring

1-minute CloudWatch metrics for EC2 instances

Amazon EC2 Image Builder

Service that automates creation, testing, and distribution of machine images

Image Builder image pipeline

Definition of end-to-end process to build and distribute images

Image Builder image recipe

Definition of components and base image used to build outputs

Image Builder component

Script or configuration step applied during image build

Image Builder distribution configuration

Settings that publish images to Regions and accounts

Image Builder infrastructure configuration

Build environment definition including instance type and networking

AWS Auto Scaling service

Service that coordinates scaling for multiple AWS resources via scaling plans

Scaling plan

AWS Auto Scaling configuration that applies policies to target resources based on metrics

Target tracking scaling policy

Scaling policy that adjusts capacity to keep a metric at a target value

Step scaling policy

Scaling policy that changes capacity by defined steps based on metric thresholds

Simple scaling policy

Legacy scaling policy that adjusts capacity after a cooldown period

Scheduled scaling

Scaling configuration that changes capacity at specific times

Auto Scaling group

Logical group of EC2 instances managed as a unit for scaling and health checks

Auto Scaling launch template

Resource that defines instance configuration used by an Auto Scaling group

Auto Scaling lifecycle hook

Hook that pauses instances in Pending or Terminating for custom actions

Auto Scaling instance lifecycle state

State such as Pending, Pending:Wait, InService, Terminating:Wait, Terminating, Standby

Auto Scaling cooldown

Period after a scaling activity when further scaling activities are temporarily blocked

Auto Scaling health check type

Source of health status, such as EC2 or ELB

Auto Scaling termination policy

Rule that decides which instances to terminate during scale-in

Amazon Elastic Container Registry

Container image registry for storing Docker/OCI images

ECR repository

Logical collection of container images with permissions and settings

ECR image

Versioned container artifact identified by tag or digest

ECR lifecycle policy

Rules for automatically expiring images based on tags or age

ECR image scanning

Feature that detects security vulnerabilities in images

ECR repository policy

IAM resource policy that controls access to a repository

Amazon Elastic Container Service

Container orchestration service for running tasks and services

ECS cluster

Logical grouping of ECS tasks and services for capacity and configuration

ECS task definition

JSON specification that defines containers, resources, and configuration