单项选择题
A. A collection of disks presented as storage to multiple servers through dedicated channels.
B. A collection of disks presented as storage to a single server through an existing network.
C. A collection of disks presented as storage to a single server through directly attached technologies.
D. A collection of disks presented as storage to multiple servers through an existing network.
单项选择题 A server consists of two 72GB SCSI drives and four 146GB SCSI drives. All drives are attached to RAID controller. The system administrator has decided to configure all six drives in a RAID 5 array. How much usable disk space will this array have？（）
单项选择题 Anadministratorisoverseeingthebackupprocessandtapesutilizedbyaformeremployee.WhichofthefollowingistheBESTwayfortheadministratortoproceed？（）
多项选择题 WhichofthefollowingaretheBESTtoolstotestconnectivitybetweentwohosts？（）