Difficulty: 8/10caching, load balancing, edge placementEdge computing architecture with caching, load balancing, and a distributed network of servers, reducing latency and improving video qualityScenario Questions0-2 years experience1How would you route a user’s request to the nearest edge server for a 1080p video segment?2If an edge cache misses a video chunk, what steps does the system take to retrieve it?3What metadata would you store on each edge node to support cache eviction for video streams?2-5 years experience1Suppose you notice high latency spikes for users in a specific region after a new feature rollout. How would you debug the CDN’s behavior?Follow-up QuestionsWhat metrics would you monitor to detect a cache miss cascade?How would you decide the optimal number of edge nodes per region?Can you walk me through the steps to roll out a new video codec across the CDN?Suggest Improvement
