问答题

WhichthreearecomponentsoftheCiscoSMARTnetservice?()

A.NBDcallbackfromspecializedengineersduringregularbusinesshours
B.supportforeveryCiscoproduct
C.supportforlow-endproductsonly
D.casesopenedviae-mailortelephoneatanytime
E.advancedreplacementonthenextbusinessday
F.immediatesupportfromtheCiscoTACengineers
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