单项选择题
A.Power 595
B.Power 560
C.Power 570
D.Power 550
单项选择题 Duringanattemptto’scp’betweentwohosts，anerrorindicatingPRNGisnotseededisdisplayed.Whatisthelikelycauseoftheerror？（）
单项选择题 Whatmustanadministratordotopreventnewtelnetusersfromconnectingtothesystem？（）
单项选择题 IBMremotesupportforhardwaremaintenanceisrequiredforseveralmissioncriticalPower595servers.Thedatacenterisverysecurityconsciousanddoesnotallowinternetaccess.HowshouldanadministratorconfigureoutboundconnectivityofElectronicServiceAgent？（）