# Question: A web server hosting company advertises 99 999 percent guaranteed network

A web server hosting company advertises 99.999 percent guaranteed network uptime.

(a) How many independent network servers would be needed if each has 99 percent reliability?

(b) If each has 90 percent reliability?

(a) How many independent network servers would be needed if each has 99 percent reliability?

(b) If each has 90 percent reliability?

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