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✅ Master Level
Distributed Systems Basics
Complete Beginner → Advanced Syllabus (Pin-to-Pin)
🟢 LEVEL 1
Fundamentals
Introduction to distributed systems core concepts.
1. Introduction to Distributed Systems
- What is a distributed system
- Centralized vs Distributed systems
- Goals of distributed systems
- Characteristics of distributed systems
- Advantages & challenges
2. Basic Concepts
- Nodes
- Cluster
- Network communication
- Latency
- Partial failure
- Fault tolerance
🟢 LEVEL 2
System Architecture
Different architectural approaches to building distributed systems.
3. Architecture Patterns
- Client–Server architecture
- Multi-tier architecture
- Microservices architecture
- Service-oriented architecture (SOA)
- Event-driven architecture
4. Communication Models
- Synchronous communication
- Asynchronous communication
- Request–response
- Message-based communication
🟡 LEVEL 3
Data Management
Handling data across distributed systems.
5. Data Distribution
- Data partitioning
- Sharding strategies
- Replication
- Leader–follower replication
- Multi-leader replication
6. Consistency Models
- Strong consistency
- Eventual consistency
- Causal consistency
- Read-after-write consistency
🟡 LEVEL 4
Coordination & Consensus
Managing agreement and coordination across systems.
7. Distributed Coordination
- Distributed locking
- Leader election
- Membership management
8. Consensus Basics
- Consensus problem
- Quorum
- Majority voting
- CAP theorem
- PACELC theorem basics
🟠 LEVEL 5
Fault Tolerance
Handling failures and ensuring reliability.
9. Failure Types
- Node failure
- Network failure
- Byzantine failure (basic idea)
10. Fault Handling
- Retry mechanisms
- Timeout handling
- Circuit breaker pattern
- Graceful degradation
🟠 LEVEL 6
Scalability
Designing systems that grow efficiently.
11. Scaling Strategies
- Vertical scaling
- Horizontal scaling
- Stateless services
- Load balancing
12. Performance Considerations
- Bottlenecks
- Backpressure
- Rate limiting
🔵 LEVEL 7
Distributed Communication
Messaging and API patterns for distributed systems.
13. Messaging Systems
- Message queues
- Pub/Sub model
- Event streaming
14. API Communication
- REST
- gRPC basics
- API gateway pattern
- BFF pattern
🔵 LEVEL 8
Data Consistency & Reliability
Patterns for reliable distributed operations.
15. Reliability Patterns
- Idempotency
- Exactly-once vs At-least-once delivery
- Event ordering
- Distributed transactions basics
16. Saga Pattern
- Choreography
- Orchestration
🔴 LEVEL 9
Observability & Operations
Monitoring and debugging distributed systems.
17. Monitoring
- Metrics
- Logging
- Distributed tracing
18. Debugging Distributed Systems
- Failure analysis
- Latency tracing
- Bottleneck detection
🔴 LEVEL 10
Modern Distributed Infrastructure
Cloud-native and containerized distributed systems.
19. Cloud Distributed Systems
- Regions & availability zones
- Multi-region deployment
- Failover strategies
20. Container Orchestration Basics
- Containers networking
- Service discovery
- Ingress concepts
⭐ Senior Frontend Focus (Must Master)
Critical distributed systems concepts for senior-level frontend engineers:
- API gateway & BFF role
- Client-side retries
- Handling eventual consistency in UI
- Optimistic updates
- Cache synchronization
- Real-time updates (WebSockets)
- Failure-aware UI design