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单项选择题 Which of the following specifications is a companion to the IEEE 802.1w Rapid Spanning Tree  Protocol (RSTP) algorithm, and warrants the use multiple spanning-trees? ()

A、 IEEE 802.1s (MST)

B、 IEEE 802.1Q (CST)

C、 Cisco PVST+

D、 IEEE 802.1d (STP)

E、 None of the other alternatives apply

  • A
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