Fundamentals

• Architectural Patterns Overview
• Cost-Benefit Analysis in Design
• Maintainability Best Practices
• Performance Metrics and Measurement
• Quality Attributes in Software Systems
• Reliability Principles
• Scalability Basics
• System Requirements Analysis
• Trade-offs in System Design

Distributed Systems

• ACID vs BASE Database Consistency Models
• Byzantine Fault Tolerance
• CAP Theorem / Brewer's theorem
• Distributed Consensus
• Distributed Locking
• Distributed Transactions
• Event-Driven Architecture in Distributed Systems
• Eventual Consistency
• Failure Detection
• Leader Election
• Quorum-based Systems
• Strong Consistency
• Three-Phase Commit Protocol
• Two-Phase Commit Protocol
• Vector Clocks

Data Management

• Data Consistency Models
• Data Lakes
• Data Warehousing
• Database Partitioning
• Database Sharding Strategies
• Document Store Design Patterns
• Graph Database Design
• Master-Slave Architecture
• Multi-Master Architecture
• NoSQL Database Design
• OLTP vs OLAP Systems
• Polyglot Persistence
• Replication Strategies
• Time-Series Data Management
• Write-Ahead Logging

Scalability

• Auto-scaling Systems
• Caching Strategies
• Content Delivery Networks
• Database Connection Pooling
• Horizontal vs Vertical Scaling
• Load Balancing Algorithms
• Message Queue Architecture
• Microservices Scaling
• Session Management at Scale
• Stateless Architecture

High Availability

• Active-Active Setup
• Active-Passive Setup
• Business Continuity
• Disaster Recovery Planning
• Failover Strategies
• Geographic Distribution
• Health Monitoring Systems
• Multi-Region Architecture
• Redundancy Patterns
• Service Level Agreements

Security

• API Security
• Authentication Systems
• Authorization Models
• Data Encryption Strategies
• JWT Design
• OAuth Implementation
• SSL/TLS Implementation
• Security in Distributed Systems
• Security in Microservices
• Zero Trust Architecture

Performance

• Asynchronous Processing
• Batch Processing
• Bottleneck Analysis
• Connection Pooling
• Latency Reduction
• Performance Testing Methodologies
• Query Optimization
• Resource Utilization
• Response Time Optimization
• Throughput Improvement

Infrastructure

• Alert System Design
• CI/CD Pipeline Design
• Configuration Management
• Container Orchestration
• Infrastructure as Code
• Logging Architecture
• Metrics Collection
• Monitoring System Design
• Resource Management
• Service Discovery

Modern Architecture Patterns

• Ambassador Pattern
• Anti-Corruption Layer
• Backend for Frontend
• Bulkhead Pattern
• CQRS Pattern
• Circuit Breaker Pattern
• Saga Pattern
• Sidecar Pattern
• Strangler Fig Pattern

API Design

• API Documentation
• API Gateway Patterns
• API Security
• API Versioning Strategies
• GraphQL Architecture
• RESTful API Design
• Rate Limiting
• Webhook Architecture
• gRPC Implementation

Cloud Native

• Cloud Cost Optimization
• Cloud Security Patterns
• Cloud Storage Design
• Container Security
• Edge Computing
• Function as a Service
• Kubernetes Design Patterns
• Multi-Cloud Strategy
• Serverless Architecture
• Service Mesh Architecture

Real-Time Systems

• Event Processing
• Gaming Server Architecture
• IoT Architecture
• Live Streaming Architecture
• Pub/Sub Systems
• Push Notification Systems
• Real-Time Analytics
• Real-Time Data Processing
• Stream Processing
• WebSocket Architecture

Domain-Specific

• Authentication Systems
• Booking Systems
• Content Management Systems
• E-commerce System Design
• Mobile Backend Architecture
• Payment Processing Systems
• Recommendation Systems
• Search Engine Design
• Social Network Architecture
• Video Streaming Platforms

Protocols

• JSON Web Tokens (JWT)
• Kerberos authentication protocol
• OAuth - Open Authorization
• OpenID Connect (OIDC)
• SAML - XML-based assertions
• SCIM - RESTful API for identity management