单项选择题
A. Full
B. Disk imaging
C. Incremental
D. Tape backup
单项选择题 Atechnicianatasmallbusinessgoesintotheserverroomtoperformmaintenanceonaserver andnoticesitisveryhotandaudiblealarmsaregoingoff.Thetechnicianisunsureofhowto remedythesituation.Whichofthefollowingshouldthetechniciando？（）
单项选择题 Whichofthefollowingtechnologiesallowsmultiplelogicalsubnetstospananentirephysicalswitched network？（）
单项选择题 WhichofthefollowingexpansioncardsshouldbeinstalledintoaservertoprovideiSCSISAN connectivity？（）