单项选择题

A.enforce the placement of the root bridge in the netwo……

What is the purpose of the STP PortFast BPDU guard feature？（）

A.enforce the placement of the root bridge in the network
B.ensure that a port is transitioned to a forwarding state quickly if a BPDU is received
C.enforce the borders of an STP domain
D.ensure that any BPDUs received are forwarded into the STP domain

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热门试题

多项选择题Whichtwocommandsarerequiredtoenablemulticastonarouter，knowingthatthereceiversonlysupport IGMPv2？（）

A.ip pim rp-address
B.ip pim ssm
C.ip pim sparse-mode
D.ip pim passive

多项选择题WhichtwooftheseareusedintheselectionofarootbridgeinanetworkutilizingSpanningTreeProtocolIEEE802.1D？（）

A. Designated Root Cost
B. bridge ID priority
C. max age
D. bridge ID MAC address
E. Designated Root Priority
F. forward delay

单项选择题SpanningTreeProtocolIEEE802.1sdefinestheabilitytodeploywhichofthese？（）

A. one global STP instance for all VLANs
B. one STP instance for each VLAN
C. one STP instance per set of VLANs
D. one STP instance per set of bridges