Answer:
0.990
Explanation:
If the server needs all of the 7 components functioning to operate as intended, the overall reliability of the system is given by the product of each component's individual reliability:
[tex]S = c_1*c_2*c_3*c_4*c_5*c_6*c_7[/tex]
If the system needs to have a reliability of 0.93, and all components have the same reliability, the required reliability for the components is:
[tex]0.93=c^7\\c=\sqrt[7]{0.93}\\c=0.990[/tex]
The minimum reliability for the components must be 0.990.