AWS Services Guide
Key AWS services covered in certification exams — overview, core concepts, typical use cases, and exam perspectives. Understanding "when to use which service" is the key to passing.
Service List
Amazon EC2
Amazon Elastic Compute Cloud
Amazon EC2 lets you launch and terminate virtual servers (instances) in the cloud on deman…
StorageAmazon S3
Amazon Simple Storage Service
Amazon S3 stores files (objects) with virtually unlimited capacity in containers called bu…
NetworkingAmazon VPC
Amazon Virtual Private Cloud
Amazon VPC lets you build a logically isolated, customizable virtual network within your A…
Security / IAMAWS IAM
AWS Identity and Access Management
AWS IAM controls who (authentication) can do what (authorization) on which AWS resources —…
DatabaseAmazon RDS
Amazon Relational Database Service
Amazon RDS makes it easy to set up, operate, and scale relational databases in the cloud. …
DatabaseAmazon Aurora
Amazon Aurora
Amazon Aurora is a MySQL- and PostgreSQL-compatible relational database built by AWS for t…
ComputingAWS Lambda
AWS Lambda
AWS Lambda runs code without managing any servers. Functions are invoked by events (HTTP r…
DatabaseAmazon DynamoDB
Amazon DynamoDB
Amazon DynamoDB is a fully managed NoSQL (key-value/document) database delivering consiste…
NetworkingAmazon CloudFront
Amazon CloudFront
Amazon CloudFront is a CDN (Content Delivery Network) that caches and delivers content fro…
Application IntegrationAmazon SQS / SNS
Simple Queue Service / Simple Notification Service
Amazon SQS and SNS are fully managed messaging services for decoupling components. SQS is …
Monitoring / OperationsAmazon CloudWatch
Amazon CloudWatch
Amazon CloudWatch collects, visualizes, and acts on metrics, logs, and events from AWS res…
ComputingAmazon ECS / EKS
Elastic Container Service / Elastic Kubernetes Service
Amazon ECS and EKS are fully managed container orchestration services for running Docker c…
Last updated: 2026-06-24
This page is created from AWS official documentation and reviewed/edited by the operator. See our editorial & quality policy for details.