Reference
35+ services explained in plain English — with use cases and free tier info.
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Resizable virtual machines in the cloud. Pick your CPU, RAM, storage, and OS. The foundation of most AWS workloads.
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Run code in response to events without managing servers. Automatically scales from zero to peak demand. Pay per millisecond of execution.
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Run Docker containers at scale. Use EC2 instances you manage or Fargate for fully serverless containers. Deep AWS integration.
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Managed Kubernetes. AWS runs the control plane so you focus on deploying workloads. Integrates with IAM, VPC, ALB, and ECR.
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Deploy and scale web apps without managing infrastructure. Upload your code and Beanstalk handles load balancing, auto-scaling, and health monitoring.
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Simple, low-cost virtual private servers. Fixed monthly pricing with predictable costs — great for small sites and beginners migrating from shared hosting.
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Infinitely scalable object storage with 11 nines of durability. Store any type of file and serve it globally via URL or CloudFront CDN.
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Persistent block-level storage volumes for EC2. Like an external hard drive that stays even when your instance stops. Supports SSD and HDD types.
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Fully managed NFS file system that can be mounted by many EC2 instances simultaneously. Scales automatically — you pay only for what you use.
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Ultra-low-cost archival storage — as cheap as $0.004/GB/month. Trade retrieval speed (minutes to hours) for massive cost savings on infrequently accessed data.
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Managed relational databases. AWS automates backups, patching, and failover. Supports MySQL, PostgreSQL, MariaDB, Oracle, and SQL Server.
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Fully managed, serverless NoSQL database. Single-digit millisecond performance at any scale. No schema — store JSON-like documents or key-value pairs.
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AWS's cloud-native relational database. Up to 5× faster than MySQL and 3× faster than PostgreSQL. Auto-scales storage up to 128 TB with zero downtime.
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Managed in-memory caching with Redis or Memcached. Cut database load by caching frequent queries. Sub-millisecond response times.
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Petabyte-scale cloud data warehouse. Query massive datasets with standard SQL. Integrates with S3, Athena, and BI tools like Tableau and QuickSight.
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Your own isolated private network inside AWS. Control IP ranges, create public and private subnets, configure route tables and internet gateways.
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Global content delivery network (CDN) with 450+ edge locations. Serve content from the closest location to your user for faster load times and DDoS protection.
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Scalable DNS and domain registration. Route traffic with policies like latency-based, weighted, geolocation, and failover. 100% SLA uptime.
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Distribute incoming traffic across multiple EC2 instances, containers, or Lambda functions. ALB supports HTTP/HTTPS routing rules; NLB handles TCP/UDP at ultra-low latency.
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Create, publish, and manage REST, HTTP, and WebSocket APIs at any scale. Acts as the front door to Lambda, EC2, or any HTTP backend.
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Dedicated private network connection from your data centre to AWS. More consistent latency and bandwidth than public internet VPN — ideal for large data transfers.
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The foundation of AWS security. Create users, groups, and roles. Attach JSON policies to grant or deny access to any AWS service or action.
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Create and control encryption keys used to protect your data. Integrates with S3, EBS, RDS, Lambda, and most AWS services. FIPS 140-2 validated.
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Filter malicious web traffic before it reaches your app. Block SQL injection, XSS, bad bots, and rate-limit abusers. Attaches to CloudFront, ALB, or API Gateway.
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Store and automatically rotate database credentials, API keys, and other secrets. Applications retrieve secrets at runtime — no hardcoded credentials in code.
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Add sign-up, sign-in, and access control to your apps. Supports social logins (Google, Facebook), SAML, and OIDC. Manages millions of users with JWT tokens.
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The central monitoring hub for AWS. Collect metrics, aggregate logs, set alarms, and build dashboards. Trigger Auto Scaling or Lambda in response to thresholds.
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Records every API call made in your AWS account — who did what, when, and from where. Essential for security audits, compliance, and incident investigation.
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Continuously assess, audit, and evaluate the configuration of AWS resources. Detect drift from desired state and get notified when something changes unexpectedly.
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Distributed tracing for your applications. Visualise request flows across Lambda, EC2, containers, and databases. Pinpoint latency bottlenecks in microservices.
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Fully managed CI/CD pipeline. Automate build, test, and deploy stages triggered by code commits. Integrates with GitHub, CodeBuild, CodeDeploy, and CloudFormation.
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Fully managed build service. Compile code, run tests, and produce deployment artefacts. No build servers to manage — scales automatically with your workload.
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Automate code deployments to EC2, Lambda, or ECS. Supports rolling, blue/green, and canary strategies with automatic rollback on failure.
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Infrastructure as Code for AWS. Define your entire stack (VPC, EC2, RDS, IAM) in YAML or JSON templates and deploy it repeatably across environments.
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Define AWS infrastructure using real programming languages — TypeScript, Python, Java, C#. Compiles down to CloudFormation. Reuse constructs like libraries.
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Fully managed message queue for decoupling components. Producers send messages; consumers process them at their own pace. Handles spikes without dropping messages.
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Pub/sub messaging. Publish one message to a topic and fan it out to many subscribers — email, SMS, SQS queues, Lambda functions, or HTTP endpoints.
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Serverless event bus for routing events between AWS services, custom applications, and SaaS partners. Match events to targets using rules with filter patterns.
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Collect, process, and analyse real-time streaming data at massive scale. Ideal for log analytics, IoT telemetry, and live dashboards. Data available within milliseconds.
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