System design
Public progress for a 114-topic system design curriculum. Search with the command menu, inspect completed topics, and see when each item was finished.
Complete
8%
Done
9
Remaining
105
Phase 1 / 1-15
0/15 complete
Scalability
Not completed
Availability
Not completed
Reliability
Not completed
Latency
Not completed
Throughput
Not completed
Bandwidth
Not completed
Client-Server Architecture
Not completed
DNS
Not completed
CDN
Not completed
HTTP vs HTTPS
Not completed
TCP vs UDP
Not completed
OSI Model
Not completed
TLS/SSL
Not completed
Proxy vs Reverse Proxy
Not completed
API Design
Not completed
Phase 2 / 16-25
1/10 complete
REST APIs
SandipJun 13, 2026, 4:09 PMWebSockets
Not completed
Long Polling
Not completed
Server-Sent Events
Not completed
Webhooks
Not completed
WebRTC
Not completed
API Gateways
Not completed
Rate Limiting
Not completed
Synchronous vs Asynchronous Communication
Not completed
Backend for Frontend
Not completed
Phase 3 / 26-35
5/10 complete
Authentication vs Authorization
SandipJun 13, 2026, 4:09 PMSession-based Authentication
Not completed
Token-based Authentication
SandipJun 13, 2026, 4:17 PMOAuth
SandipJun 13, 2026, 4:09 PMOAuth2
SandipJun 13, 2026, 4:09 PMOpenID Connect
Not completed
JWT
SandipJun 13, 2026, 4:09 PMRBAC
Not completed
SSO
Not completed
Secrets Management
Not completed
Phase 4 / 36-50
3/15 complete
Databases Fundamentals
SandipJun 13, 2026, 4:09 PMSQL
SandipJun 13, 2026, 4:09 PMNoSQL
SandipJun 13, 2026, 4:09 PMSQL vs NoSQL
Not completed
ACID
Not completed
BASE
Not completed
Indexing
Not completed
Denormalization
Not completed
Materialized Views
Not completed
Query Optimization
Not completed
Connection Pooling
Not completed
Full-Text Search
Not completed
Time Series Database
Not completed
Vector Database
Not completed
Read Replicas
Not completed
Phase 5 / 51-57
0/7 complete
Caching
Not completed
Cache Invalidation
Not completed
Distributed Cache
Not completed
Cache Eviction Policies
Not completed
Cache Stampede
Not completed
Cache Warming
Not completed
Consistent Hashing
Not completed
Phase 6 / 58-76
0/19 complete
CAP Theorem
Not completed
PACELC Theorem
Not completed
Consistency Models
Not completed
Data Replication
Not completed
Sharding
Not completed
Data Partitioning
Not completed
Network Partitions
Not completed
Split-Brain Problem
Not completed
Heartbeats
Not completed
Leader Election
Not completed
Consensus Algorithms
Not completed
Quorum
Not completed
Paxos
Not completed
Raft
Not completed
Gossip Protocol
Not completed
Clock Synchronization
Not completed
Logical Clocks
Not completed
Lamport Timestamps
Not completed
Vector Clocks
Not completed
Phase 7 / 77-86
0/10 complete
Message Queues
Not completed
Pub/Sub
Not completed
Delivery Semantics
Not completed
Event-Driven Architecture
Not completed
Change Data Capture
Not completed
CQRS
Not completed
Event Sourcing
Not completed
Outbox Pattern
Not completed
Distributed Transactions
Not completed
SAGA Pattern
Not completed
Phase 8 / 87-95
0/9 complete
Single Point of Failure
Not completed
High Availability
Not completed
Fault Tolerance
Not completed
Circuit Breaker
Not completed
Bulkhead Pattern
Not completed
Retry Pattern
Not completed
Exponential Backoff
Not completed
Idempotency
Not completed
Health Checks
Not completed
Phase 9 / 96-104
0/9 complete
Monolithic Architecture
Not completed
Microservices Architecture
Not completed
Serverless Architecture
Not completed
Service Discovery
Not completed
Service Mesh
Not completed
Sidecar Pattern
Not completed
Strangler Fig Pattern
Not completed
Database per Service
Not completed
Shared Database Pattern
Not completed
Phase 10 / 105-114
0/10 complete
Docker
Not completed
Kubernetes
Not completed
Containers
Not completed
Virtual Machines
Not completed
Infrastructure as Code
Not completed
Object Storage
Not completed
Distributed File Systems
Not completed
Block vs File vs Object Storage
Not completed
Data Compression
Not completed
Erasure Coding
Not completed