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單項選擇題

The ability to stack switches using cisco stackwise technology provides A number of important benefits to the customer, which of these is A benefit of cisco stackwise?()

A.allows cisco smart switches to be incorporated into the stack
B.allows multiple switches to be managed as A single device.
C.enables switches in multiple wring closets to provide failover for each other
D.eliminates the need to purchase smartnet on individual switches in the stack

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