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单项选择题Which statement is correct about the number of available QoS system classes in FCoE?()

A、 It’s hard-set and cannot be disabled

B、 It’s configurable, with an upper limit of 16

C、 It’s hard-set but cannot disable best-effort and Fibre Channel

D、 It’s hard-set but can disable all but one class

E、 It’s configurable with an upper limit of eight

  • C
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