S3 Service Guide

Features & Use Cases

Common Use Cases

Static Website Hosting

Host static websites with custom domains

Data Lakes

Store structured and unstructured data

Backup & Archive

Long-term data retention and compliance

Content Distribution

Media files and software distribution

Advanced Features

Event Notifications

Trigger Lambda, SQS, SNS on events

Object Lock

WORM compliance and legal holds

Analytics & Insights

Storage analytics and inventory

Batch Operations

Perform operations on billions of objects

AWS Service Integrations

CloudFront

Global content delivery network

  • • Cache S3 content globally
  • • Reduce latency and costs
  • • Origin Access Control (OAC)

Lambda

Serverless compute integration

  • • Process objects on upload
  • • Image resizing and processing
  • • Event-driven workflows

Athena

Serverless query service

  • • Query data directly in S3
  • • Standard SQL queries
  • • Pay per query

Security Features

Access Logging

Log all requests to S3 buckets

CloudTrail Integration

API-level logging and monitoring

VPC Endpoints

Private connectivity to S3

Monitoring & Analytics

CloudWatch Metrics

Storage, requests, and data retrieval

Storage Class Analysis

Optimize storage class usage

Inventory Reports

Scheduled reports on objects

S3 Best Practices

Naming Convention

Use meaningful, consistent names

Enable Versioning

Protect against data loss

Lifecycle Policies

Automate cost optimization

Monitor Costs

Regular cost analysis

S3 Service Guide Exam Tips

  • • S3 is object storage, not file or block storage
  • • Use CloudFront for global content distribution and caching
  • • Event notifications can trigger Lambda, SQS, and SNS
  • • VPC endpoints provide private connectivity without internet gateway
  • • Object Lock provides WORM compliance for regulatory requirements
S3 Performance & Tiers Next: S3 Architecture Diagram