单项选择题
A. Multiple types of network cards were used.
B. The environment is outside of the DMZ.
C. Hardware used is not on the HCL.
D. Internal hard drives were used for storage instead of external hard drives.
单项选择题 A full backup is performed every Sunday and incremental backups are performed daily Monday through Saturday. How many tapes would be required to perform a full restore if a complete failure occurred on Thursday before the incremental backup?（）
单项选择题 WhichofthefollowingistheMOSTsecureandefficientwaytodisposeofrewritableDVDmedia containingsensitiveinformation？（）
单项选择题 An administrator replaces the network card in a web server. After replacing the network card some users can access the server but others cannot. Which of the following is the FIRST thing the administrator should check？（）