System Design → Quiz 6 Copy - CybitLabs

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System Design

System Design

Scalability
- Horizontal vs vertical scaling | Sharding and partitioning | Consistent hashing | Caching and CDNs | Request throttling and rate limiting
Reliability
- Redundancy and replication | High availability and fault tolerance | Backup and disaster recovery | Load balancing and failover | Graceful degradation and graceful shutdown
Distributed systems
- CAP theorem and tradeoffs | Distributed consensus algorithms (e.g. Paxos, Raft) | Leader election and quorum-based systems | Distributed locking and synchronization | Distributed tracing and debugging
Database design and management
- SQL vs NoSQL databases | ACID vs BASE transactions | Indexing and query optimization | Database sharding and replication | Backup and recovery strategies
Caching
- In-memory caching vs database caching | Cache eviction policies | Cache consistency and invalidation | Cache performance metrics and monitoring | Cache optimization techniques (e.g. preloading, lazy loading)
Load balancing
- Layer 4 vs Layer 7 load balancing | Load balancing algorithms (e.g. round-robin, least connections) | Load balancer health checks and failover | Session persistence and sticky sessions | Global traffic management and geo-location-based routing
Message queues
- Publish/subscribe vs point-to-point messaging | Message durability and reliability | Message ordering and sequencing | Message queue monitoring and metrics | Message queue optimization techniques (e.g. batching, compression)
System architecture
- Monolithic vs microservices architecture | Service-oriented architecture (SOA) | Event-driven architecture (EDA) | API-first design | Containerization and orchestration (e.g. Docker, Kubernetes)
Security
- Authentication and authorization | Encryption and key management | Network security (e.g. firewalls, VPNs) | Web application security (e.g. OWASP Top 10) | Data security and privacy regulations (e.g. GDPR, CCPA)
API design and management
- RESTful APIs API versioning | API documentation and testing | API gateway and management services (e.g. AWS API Gateway) | API security and throttling
Performance optimization
- Application profiling and benchmarking | Bottleneck identification and optimization | Caching and database optimization | Load testing and performance monitoring | Resource optimization and utilization (e.g. CPU, memory, network)
Cloud infrastructure and services
- Public cloud vs private cloud vs hybrid cloud | Infrastructure as a Service (IaaS) | Platform as a Service (PaaS) | Software as a Service (SaaS) | Cloud migration strategies and challenges
Microservices
- Benefits and challenges of microservices | Service discovery and registration | Service mesh and sidecars | API gateway and management | Microservice monitoring and logging
Design patterns
- Creational patterns (e.g. Singleton, Factory, Builder) | Structural patterns (e.g. Adapter, Facade, Decorator) | Behavioral patterns (e.g. Observer, Strategy, Command) | Architectural patterns (e.g. Model-View-Controller, Layered architecture)

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