👨‍🎓System Design Topics: Cheat Sheet for Interview Preparation

☑️ Load Balancing
☑️ API Gateway
☑️ Communication Protocols
☑️ CDN (Content Delivery Network)
☑️ Database
☑️ Cache
☑️ Message Queue
☑️ Generating Unique Identifiers
☑️ Scalability
☑️ Availability
☑️ Performance
☑️ Fault Tolerance and Recovery
☑️ Security and much more

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Daily problem solving on LeetCode / CodeStudio
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Spring Boot + REST APIs
Microservices Architecture
SQL + NoSQL Databases
Authentication, JWT, Security Concepts
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Docker & Kubernetes
AWS / GCP / Azure
CI/CD Pipelines
System Monitoring & Scaling

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Low Level Design (LLD)
High Level Design (HLD)
Load Balancing, Caching, Database Scaling
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Concurrency & Multithreading
Performance Optimisation
Distributed Systems
Message Queues (Kafka, RabbitMQ)

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Strong GitHub Portfolio
Technical Blogs
LinkedIn Optimisation
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✅ Programming Language Fun Facts 🧠💻

1️⃣ Python 🐍
⦁ Created by Guido van Rossum in 1991
⦁ Known for readability and simplicity
⦁ Tops 2025 charts in AI, data science, and automation

2️⃣ JavaScript 🌐
⦁ Invented in just 10 days by Brendan Eich (1995)
⦁ Runs in every modern web browser
⦁ Powers 95%+ of websites

3️⃣ C 🖥️
⦁ Developed by Dennis Ritchie between 1969-73
⦁ Backbone of OS kernels and embedded systems
⦁ Foundation for C++, C#, Objective-C

4️⃣ Java ☕
⦁ Released by Sun Microsystems in 1995
⦁ “Write once, run anywhere” mantra
⦁ Powers Android apps and enterprise software

5️⃣ Rust 🦀
⦁ Launched by Mozilla in 2010
⦁ Focuses on memory safety without a garbage collector
⦁ Popular for system-level programming

6️⃣ Go (Golang) 🐹
⦁ Created at Google in 2009
⦁ Designed for simplicity and performance
⦁ Great for backend and microservices

7️⃣ TypeScript 🔷
⦁ Microsoft’s superset of JavaScript (2012)
⦁ Adds static typing
⦁ Hot in large frontend projects

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