Skip to content

Tracks

AI-assisted engineering Working with AI Agents System design Core systems Data and AI systems Coding Coding problems Code review On-call SQL

Practice

Paths Concept guides

FreeAd-supported

The plan adds AI feedback and removes ads.

Concept guides/Scale and caching/Video edge storage (byte-range caching)

System designScale and caching

Video edge storage (byte-range caching)

Hard3 min read

Questions it teaches

Video CDN edge storageHard45 min

Related

Scale and caching Data modeling and storage Search and feeds Reliability and failover Real-time systems Consistency and money Messaging and streams

Builds on: Data modeling and storage

Designing a parking lot4 min Designing a pastebin3 min

Leads to: Search and feeds

Polling a feed for new items4 min Social feed (fan-out design)4 min

Leads to: Reliability and failover

Observability systems3 min Anomaly detection3 min

Leads to: Real-time systems

Short polling for presence4 min URL routing3 min

© 2026 Prep Room·From California·AI can make mistakes.

About Legal Contact Cookies Your privacy choices

Home Review Tracks Paths