Tech Cheat Sheets And Notes¶
Quick-reference study notes for technology certifications and architecture decisions. Each sheet answers which service, which pattern, and why — not how to click through a portal. Content is comparison-oriented: tables, decision flowcharts, and Mermaid diagrams side-by-side.
Cloud Service Providers¶
Microsoft Azure¶
Organised by domain. Each section covers service selection and architectural trade-offs.
| Domain | Content |
|---|---|
| Networking | Load balancers, APIM, VNet, DNS, NSG, DDoS, CDN |
| Security | Defender for Cloud, Key Vault, Sentinel, Encryption |
| Storage | Blob, Files, Disk, SQL, Cosmos DB, redundancy |
| Migration | Azure Migrate, DMS, Data Box, ASR, ASMA, SMS, Arc |
| Monitoring & Observability | Azure Monitor, Log Analytics, Alerts, Agents |
| Compute | VMs, App Service, Functions, AKS, ACI, Batch |
| Identity & Access | Entra ID, RBAC, PIM, Hybrid Identity |
| High Availability & DR | ASR, Azure Backup, Availability Zones |
| Governance | Policy, Blueprints, Management Groups, Cost |
| Messaging & Integration | Service Bus, Event Grid, Logic Apps, Functions |
| Well-Architected Framework | Five pillars, trade-off navigato |
See the Azure Exam Track Index for full coverage by certification.
Amazon Web Services¶
Organised by domain. Each section covers service selection and architectural trade-offs.
| Domain | Content | |
|---|---|---|
| Compute | EC2, Lambda, ECS, EKS, Elastic Beanstalk | |
| Networking | VPC, Route 53, CloudFront, ELB, API Gateway | |
| Storage | S3, EBS, EFS, Glacier, Storage Gateway | |
| Identity & Access | IAM, Organizations, SSO, Cognito | |
| Security | GuardDuty, Security Hub, WAF, Shield, KMS | |
| Database | RDS, Aurora, DynamoDB, ElastiCache, Redshift | |
| Monitoring & Observability | CloudWatch, CloudTrail, X-Ray, Config | |
| Messaging & Integration | SQS, SNS, EventBridge, Step Functions | |
| Governance | Organizations, SCPs, Control Tower, Budgets | |
| High Availability & DR | Multi-AZ, Multi-Region, AWS Backup, Route 53 | |
| Well-Architected Framework | Six pillars, trade-off navigator |
See the AWS Exam Track Index for full coverage by certification.
Google Cloud¶
Organised by domain. Each section covers service selection and architectural trade-offs.
| Domain | Content | |
|---|---|---|
| Compute | Compute Engine, GKE, Cloud Run, Cloud Functions, App Engine | |
| Networking | VPC, Cloud Load Balancing, Cloud CDN, Cloud DNS, Cloud NAT, Cloud Armor | |
| Storage | Cloud Storage, Persistent Disk, Filestore, Bigtable, Spanner, Firestore, BigQuery | |
| Identity & Access | Cloud IAM, Cloud Identity, Workload Identity, Service Accounts, IAP | |
| Security | SCC, Secret Manager, Cloud KMS, Binary Authorization, VPC Service Controls, Cloud Armor | |
| Monitoring & Observability | Cloud Monitoring, Cloud Logging, Cloud Trace, Cloud Profiler, Cloud Debugger | |
| Messaging & Integration | Pub/Sub, Eventarc, Workflows, Cloud Tasks, API Gateway | |
| Governance | Organization Policy, Resource Manager, Cloud Asset Inventory, Billing Budgets, Policy Troubleshooter | |
| High Availability & DR | Regional vs multi-regional, Cloud DNS failover, Cloud Load Balancing global failover, Backup for GCE, Spanner replication | |
| Well-Architected Framework | Six pillars, trade-off navigator |
See the Google Cloud Exam Track Index for full coverage by certification.
How to Use These Sheets¶
The cheat sheets are not meant to be read cover-to-cover. Jump to the section relevant to what you are studying. Each section contains:
- A comparison table of services in that domain
- Exam-tip callouts that highlight common decision points in exam questions
- One or more Mermaid decision flowcharts for branching "which service?" scenarios
- Deprecation notices where a service has been retired or superseded
The live site renders all diagrams inline. To browse locally, run make docs-serve.
Contributing¶
See CONTRIBUTING.md for the full contributor workflow.
License¶
This project is licensed under the GPL-3.0.