A Windows file server has run out of space. In the interim the administrator is moving several archived confidential folders that have been encrypted off the file server and onto an older server file shares. After the move, a manager reports that they are able to access and modify some of the items that have been moved.
Which of the following is the MOST likely issue?（）

A. A way to catalog tapes after a tape backup to easily identify and retrieve data.
B. A modular tape backup system containing multiple drives， tapes， and connections.
C. A database consisting of all backups performed and the contents of each backup.
D. An offsite storage facility to house tapes in case of a disaster for easy site recovery.

A.Monthly bandwidth limits， server configuration， and software baseline.
B.Number of dedicated technicians assigned to network issues.
C.Level of service including energy consumption， bandwidth and server color.
D.Level of service including time limits for service， repair and replacement.

A. Poor performance
B. No fault tolerance
C. Not supported by many RAID controllers
D. Higher cost