The reliability of a system with n redundant components and a reliability of r is :
A. 1-(1-r)n
B. 1-(1+r)n
C. 1+(1-r)n
D. All of the mentioned
Answer:A
The reliability of a system with n redundant components and a reliability of r is :
A. 1-(1-r)n B. 1-(1+r)n C. 1+(1-r)n D. All of the mentioned
Explanation: Therefore, when a datacenter achieves a reliability of 99 percent, two redundant data centers have a reliability of 99.99 percent (four nines) and three redundant data centers can achieve a reliability of 99.9999 percent (six nines).