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Simran Tech
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Simran Tech
@devfrom_hyd
AI + Tech Growth Strategist | Helping devs & founders grow on X with AI Threads on productivity, AI trends & X growth daily 🚀 DMs open for collabs
Hyderabad Katılım Nisan 2026
868 Takip Edilen859 Takipçiler

This is how we feel every time you post this🥹
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Claude@claudeai
We're extending Claude Fable 5 access on all paid plans, as well as keeping Claude Code’s weekly rate limits 50% higher, through July 19.
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System Design From Scratch — Day 8
CDN (Content Delivery Network)
1. Why?
Users are worldwide.
Fetching every image/video from one server = Slow.
2. Simple Explanation
A CDN stores copies of your static files across the globe.
Users download content from the nearest server, not the original one.
3. Real-World Example
When you watch videos on Netflix or YouTube, most content comes from a nearby CDN—not the main server.
4. Architecture
User
↓
CDN
↓
Origin Server
5. Key Takeaways
✅ Faster loading
✅ Lower latency
✅ Less load on origin server
✅ Better global performance
6. Question
Why should a user in Japan fetch an image from the US when there's a copy nearby?
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System Design Interview Question:
You're building a Zoom-like video conferencing platform for enterprises.
Requirements :
Support 1 million concurrent participants globally.
Meetings can have up to 500 participants.
Users should automatically connect to the nearest region for low latency.
If a regional data center fails, meetings must continue with minimal disruption.
Support screen sharing, chat, recording, and real-time captions.
Video quality should automatically adapt to changing network conditions.
End-to-end latency should stay below 200 ms.
How would you design the architecture?
Explain your High-Level Design 👇

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@ItsAlexhere0 X is full of founders
Reddit is full of opinions
LinkedIn is full of hustle posts, buzzwords, and humblebrags
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@devfrom_hyd Ofcourse but need to learn how to solve problem with coding
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@devfrom_hyd Absolutely Simran
AI is a multiplier, not a replacement for strong engineering fundamentals.
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