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๐Ÿ“˜ Why Indexes Are Not Free

Subhahu JainSubhahu Jain
Jan 18, 20263 min read

The Silent Cost Behind Fast Reads Indexes donโ€™t make systems faster โ€”they shift cost from reads to writes, memory, and latency tails. ๐Ÿง  The...

๐Ÿ“˜ Why Indexes Are Not Free

Design (LLD) NGROK Tool - Machine Coding

Subhahu JainSubhahu Jain
Aug 11, 20248 min read

Features Required: Port Forwarding: Allows exposing a local server behind a NAT or firewall to the internet. Supports both HTTP and TCP...

Design (LLD) NGROK Tool - Machine Coding

Design Google Calendar - Database Model

Subhahu JainSubhahu Jain
May 18, 20245 min read

Features Included User Authentication: Secure login and registration. Event Management: Creating, updating, and deleting events. Recurring Events:...

Design Google Calendar - Database Model

Design (LLD) Google Authenticator - Machine Coding

Subhahu JainSubhahu Jain
Jan 5, 20247 min read

Features Required: QR Code Generation: Ability to generate QR codes for two-factor authentication. Token Generation: Generate time-based tokens for...

Design (LLD)  Google Authenticator  - Machine Coding

Design (LLD) Alexa - Machine Coding

Subhahu JainSubhahu Jain
Jan 4, 20248 min read

Features Required: Voice Recognition: Alexa should be able to recognize and interpret voice commands. Natural Language Processing...

Design (LLD)  Alexa - Machine Coding

Design (LLD) Chess - Machine Coding Interview

Subhahu JainSubhahu Jain
May 13, 20226 min read

Chess Chess is a two-player strategy board game played on a chessboard, which is a checkered gameboard with 64 squares arranged in an 8ร—8 grid. There...

Design (LLD) Chess - Machine Coding Interview

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