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At which layer of the OSI model is RSTP used to prevent loops?()
A.data link
B.network
C.physical
D.transport
参考答案
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AS - pathB
next - hopC
MEDD
weightE
local preferenceF
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RIPB
STPC
IGRPD
CDPE
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Layer twoB
Layer fourC
Layer oneD
Layer three
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Application LayerB
Presentation LayerC
Data Link LayerD
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