單項(xiàng)選擇題Which command enables RSTP on a switch?()

A. spanning-tree mode rapid-pvst
B. spanning-tree uplinkfast
C. spanning-tree backbonefast
D. spanning-tree mode mst


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1.單項(xiàng)選擇題DNS servers provide what service?()

A. they run a spell check on host names to ensure accurate routing
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2.單項(xiàng)選擇題There are no boot system commands in a router configuration in NVRAM.What is the fallback sequence that router will use to find an ios during reload?()

A. Flash,TFTP server,ROM
B. Flash,NVRAM,ROM
C. ROM,NVRAM,TFTP server
D. NVRAM,TFTP server,ROM
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3.單項(xiàng)選擇題Which command shows your active Telnet connections?()

A. show session
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4.單項(xiàng)選擇題Which commands is necessary to permit SSH or Telnet access to a cisco switch that is otherwise configured for these vty line protocols?()

A. transport type all
B. transport output all
C. transport preferred all
D. transport input all

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