While troubleshooting a video problem on an application server, the system administrator has determined that the video firmware should be updated. Which of the following sources should be used to locate an appropriate update for this hardware?（）

A.Perform a root cause analysis.
B.Implement a change to the servers.
C.Establish a plan of action to resolve the issue.
D.Question users prior to implementing the solution.

A. Telnet <Server name>  25
B. Ping <Server name> 
C. net send <Server name> test mail
D. nbtstat a <Server name> 

A. Mirroring with striping
B. Striping with dedicated parity
C. Striping with distributed parity
D. Independent disks with shared parity