A Network Has Three Independent File Servers, Each with 90

question 27

Multiple Choice

A network has three independent file servers, each with 90 percent reliability. The probability that the network will be functioning correctly (at least one server is working) at a given time is:

• A)99.9 percent.
• B)97.2 percent.
• C)95.9 percent.
• D)72.9 percent.