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AUniversitycustomerhasaBladeCenterHfullypopulatedwithLS21Blades,asingleAMM,andfourpowermodules.TheBladeCenterhasbeenrunningflawlesslyforthreemonths.Onedayanadministratordiscoversthattheycannotviewvideoonblades9-12eitherlocallyorremotelyeventhoughtheystillappeartoberunning.Thevideoworksonalloftheotherblades.Whichofthefollowingisthecauseofthevideoproblem?()
A.Apowermodulehasfailedandthereisnotenoughpowertoseevideoonallblades.
B.MUX3ontheBladeCenterbackplanehasfailed.
C.AfirmwareupdateisrequiredontheAMM.
D.AsecondAMMisrequiredtoviewvideoonblades9-14.
参考答案