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System Design
X (Twitter)
Practice designing a system to handle millions of concurrent users posting tweets, retweets, and replies while maintaining low latency and high availability, like X (formerly Twitter).
Interview Details

Experience designing systems like X (formerly Twitter) in realistic scenarios. This interview will challenge you to create a scalable, high-availability architecture capable of handling millions of concurrent users. You'll walk through various design phases and respond to probing questions that test the depth and breadth of your system design knowledge. By the end, you'll have a comprehensive understanding of building large-scale social media platforms, similar to those deployed at FAANG+ companies.

Get ready to enhance your skills in critical areas.

  • Define and clarify system requirements and scope, ensuring a thorough understanding of the fundamental needs.
  • Develop high-level system architectures by outlining main components and illustrating interactions using diagrams.
  • Dive into detailed API and database designs, justifying choices based on performance and scalability.
  • Navigate complex scenario-based questions to evaluate trade-offs and balance non-functional requirements.
  • Fine-tune your ability to communicate and defend your design decisions under real-world interview conditions.

Upon completion, you'll be better equipped to design robust, scalable architectures for social media platforms. This will prepare you to tackle system design questions in technical interviews confidently.

Experience designing systems like X (formerly Twitter) in realistic scenarios. This interview will challenge you to create a scalable, high-availability architecture capable of handling millions of co...

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The interviewer simulates a real-world interview an adapts accordingly.

Ask for hints or clarifications if you're stuck.

50 Responses
Diagramming tool

Built to Simulate the MAANG Experience

Prep for Every Loop

Practice explaining complex technical concepts verbally to build confidence and refine your communication skills.

Detailed Analysis

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Unlock insights that highlight your weaknesses and gives you sample responses.

Instant, Actionable Feedback

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Receive immediate, targeted guidance on solution correctness, complexity, and approach.

Interactive Environment

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Hone your coding logic in an editor and bring your system designs to life with an integrated diagramming workspace.

Tailored to Your Preferences

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Get relevant practice scenarios for your role and experience, whether you're a junior or an engineering manager.