Arch 25
Core Concepts

Overall progress

0/36 solved

0%


Studied0/36

Foundations

0/5 solved

StatusStarConceptNotes
Back-of-the-Envelope Estimation
Client-Server vs Peer-to-Peer Architecture
Network Protocols: HTTP, gRPC, WebSocket, DNS
Scaling 0 to 1M Users
Consistent Hashing

Data and Consistency

0/6 solved

StatusStarConceptNotes
SQL vs NoSQL Databases
CAP Theorem & Consistency Models
Replication, Failover, & Leader Election
Database Sharding and Partitioning
Indexing and Query Optimization
Distributed Transactions: 2PC vs Saga

Performance and Traffic

0/5 solved

StatusStarConceptNotes
Caching Patterns and Invalidation
Redis Patterns for Interview Systems
Load Balancing Algorithms
Proxy & Reverse Proxy Patterns
CDN, Edge Caching, and Content Delivery

Events and Streaming

0/4 solved

StatusStarConceptNotes
Message Queues Fundamentals
Kafka Architecture and Guarantees
Event Sourcing & CQRS
Stream Processing Basics

Storage and Filesystems

0/4 solved

StatusStarConceptNotes
Storage Types: Block, File, & Object
RAID & Durability Basics
Write-Ahead Logging (WAL)
Distributed File Systems: GFS & HDFS

Resilience and Advanced Structures

0/12 solved

StatusStarConceptNotes
Circuit Breakers, Retries, & Bulkheads
Probabilistic Data Structures
Merkle Tree
Gossip Protocol
Observability & Distributed Tracing
Microservices Patterns: Strangler, Saga, & Outbox
System Design Interview Patterns
API Contract & Integration Design
Time-Series & Metrics Storage
Idempotency & Exactly-Once Effects
Vector Embeddings & ANN Search
Data Serialization & Schema Evolution