單項(xiàng)選擇題What features set is most frequently used to prevent hackers from flooding a port with MAC- addresses?()

A.BPDU Guard
B.802.x
C.Port Security
D.Storm Control


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2.單項(xiàng)選擇題What is the statistical reserve?()

A.Bandwidth that is reserved for SVCs to route over a trunk
B.Bandwidth that is reserved on a trunk so that ABR connections can burst
C.Bandwidth on a trunk that is reserved for control traffic and cannot be used by connections
D.Bandwidth that cannot be allocated to connections but can be used to accommodate statistical variations in the traffic

3.單項(xiàng)選擇題What is TCI?()

A.Tag Calling Interface
B.Tag Control Identifier
C.ToS Class Interface
D.Tag Control Information

4.多項(xiàng)選擇題In which modes does selective packet discard(SPD)operate?()

A.normal
B.discard
C.random
D. full

5.多項(xiàng)選擇題Which two statements about VPLS are true? ()

A.There is a full mesh of pseudowires.
B.There is a partial mesh of pseudowires.
C.Only L2TPv3 can be used for pseudowire establishment.
D.There is split-horizon to avoid loops.