Quiz on WhatsApp Design

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Introduction

Abstractions

Non-functional System Characteristics

Back-of-the-Envelope Calculations

Building Blocks

Domain Name System (DNS)

Sequencer

Rate Limiter

Distributed Cache

Blob Store

Content Delivery Network (CDN)

Load Balancers

Key-Value Store

Distributed Messaging Queue

Pub-sub

Distributed Task Scheduler

Distributed Search

Distributed Logging

Distributed Monitoring

Monitoring Server Side Errors

Monitoring Client Side Errors

Databases

Sharded Counters

Concluding Building Blocks

Design YouTube

Design Quora

Design Google Maps

Designing a Proximity Server like Yelp

Design Uber

Design Twitter

Newsfeed System

Design Instagram

Design URL Shortening Service / TinyURL

Design a Web Crawler

Design WhatsApp

Design Typeahead Suggestion

Design Collaborative Document Editing Service / Google Docs

Spectacular Failures

Concluding Remarks

Appendix: System Design Interviews

All content below this will likely go away

Design Exercises

Archived temporary lessons

Design Resource Allocator for a Large Datacenter

Design Zoom

Continuous Monitoring using Data Processing

Design Live Commenting at Facebook

Security

For Noor: Placeholder for Illustration Making

Appendix

Backup of our Lessons

Caching Billions of Tiny Objects on Flash

Design Quora

Copy-Design YouTube

Identity & Access Management

Copy of CDN (02-03-2022)

Quiz on WhatsApp Design