A Local University Is Deciding Between Three Different Computer Networks

Multiple Choice

A local university is deciding between three different computer networks. The network servers have a mean time between failure and mean time to repair as shown in the table. MTBF MTTR
Server A 100 hrs 1 hour
Server B 250 hrs 2 hours
Server C 400 hrs 3 hours
Which server(s) will provide the greatest availability?

A) Server A
B) Server B
C) Server C
D) Server A and Server B
E) Server B and Server C