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Multiple ChoiceBeginner 45s

Bandwidth estimation

A service serves 5M videos/day at 5 MB each. Approximately what egress bandwidth is required on average?
Options
  1. 1~5 MB/s (5 MB per video, each streamed in one second)
  2. 2~5 GB/s (5M videos times 5 MB, streamed once daily)
  3. 3~290 MB/s (5M × 5 MB = 25 TB/day ≈ 25e12/86400 bytes/s ≈ 289 MB/s)
  4. 4~25 KB/s (25 TB per day over a whole month of seconds)

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