Which of the following is the FASTEST medium to present storage？（）

A. Make one change at a time and test/confirm the change has resolved the problem.
B. Verify full system functionality.
C. Replicate the problem.
D. Determine if a common element is causing multiple problems.
E. Identify any changes to the server.

A. GFS
B. Full
C. Differential
D. Incremental

A.RAID 0
B.RAID 1
C.RAID 5
D.RAID 10