单项选择题

Which statement correctly describes enabling BPDU guard on an access port that is also enabled for PortFast？（）

A.Upon startup， the port transmits 10 BPDUs. If the port receives a BPDU， PortFast and BPDU guard are disabled on that port and it assumes normal STP operation.
B.The access port ignores any received BPDU.
C.If the port receives a BPDU， it is placed into the error-disable state.
D.BPDU guard is only configured globally and the BPDU filter is required for port-level configuration.

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热门试题

多项选择题WhichtwostatementscorrectlydescribecharacteristicsofthePortFastfeature？（）

A.STP will be disabled on the port.
B.PortFast can also be configured on trunk ports.
C.PortFast is required to enable port-based BPDU guard.
D.PortFast is used for both STP and RSTP host ports.
E.PortFast is used for STP-only host ports.

多项选择题WhichtwoRSTPportrolesincludetheportaspartoftheactivetopology？（）

A.root
B.designated
C.alternate
D.backup
E.forwarding
F.learning

多项选择题WhichtwoDTPmodeswillpermittrunkingbetweendirectlyconnectedswitches？（）

A.dynamic desirable （VTP domain A） to dynamic desirable （VTP domain A）
B.dynamic desirable （VTP domain A） to dynamic desirable （VTP domain B）
C.dynamic auto （VTP domain A） to dynamic auto （VTP domain A）
D.dynamic auto （VTP domain A） to dynamic auto （VTP domain B）
E.dynamic auto （VTP domain A） to nonegotiate （VTP domain A）
F.nonegotiate （VTP domain A） to nonegotiate （VTP domain B）

多项选择题WhichtwostatementscorrectlydescribeVTP？（）

A.Transparent mode always has a configuration revision number of 0.
B.Transparent mode cannot modify a VLAN database.
C.Client mode cannot forward received VTP advertisements.
D.Client mode synchronizes its VLAN database from VTP advertisements.
E.Server mode can synchronize across VTP domains.

多项选择题Whichtwoofthefollowingstatementsdescribearoutedswitchportonamultilayerswitch？（）

A.Layer 2 switching and Layer 3 routing are mutually supported.
B.The port will not be associated with any VLAN.
C.The routed switch port supports VLAN subinterfaces.
D.The routed switch port is used when a switch has only one port per VLAN or subnet.
E.The routed switch port ensures that STP remains in the forwarding state.