Up and down legs
Difficulty 3 of 5
Two cities are 500 km apart. Fiber runs 1.2 times the distance: about 2.94 ms one way. The space path goes up 550 km, over one laser link of about 500 km, and down 550 km. Each of the 2 satellites adds 50 µs. How many ms does the space path take one way?
The question
Answer with one number in ms.
Goals and limits
- p99 latency
- under 8 ms
- Monthly cost
- under 100,000 USD/mo
Concepts
How players did
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