Which of the following BEST limits the impact of server failures in a distributed environment?
A.
Redundant pathways
B.
Clustering
C.
Dial backup lines
D.
Standby power
Explanation:
Clustering allows two or more servers to work as a unit, so that when one of them fails, the other takes over. Choices A and C are intended to minimize the impact of channel communications failures, but not a server failure. Choice D provides an alternative power source in the event of an energy failure.