A.Unidirectional link detection is achieved through monitoring STP BPDUs.
B.It is recommended that it be enabled globally rather than on an individual port.
C.When an error is detected， normal mode will disable a port.
D.It is recommended that it be enabled in normal mode.
E.It is recommended that it be used with the loop guard feature.
您可能感興趣的試卷
你可能感興趣的試題
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.
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.
A.root
B.designated
C.alternate
D.backup
E.forwarding
F.learning
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）
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.
最新試題
Which two statements are true when the extended system ID feature is enabled？ （）
Refer to the exhibit. Switch S2 contains the default configuration. Switches S1 and S3 both have had the command spanning-tree mode rapid-pvst issued on them. What will be the result？（）
Examine the diagram. A network administrator has recently installed the above switched network using 3550s and would like to control the selection of the root bridge.Which switch should theadministrator configure as the root bridge and which configuration command must theadministrator enter to accomplish this？（）
Refer to the exhibit. Initially， LinkA is connected and forwarding traffic. A new LinkB is then attached between SwitchA and HubA. Which two statements are true about the possible result of attaching the second link？（）
Refer to the exhibit. All network links are FastEthernet. Although there is complete connectivity throughout the network， Front Line users have been complaining that they experience slower network performance when accessing the server farm than the Reception office experiences. Based on the exhibit， which two statements are true？（）
Which two statements are true about BPDU port-guard and BPDU filtering？（）
What two things will occur when an edge port receives a BPDU？（）
Refer to the exhibit. What command was issued on the Layer 3 switch Sw1 between Exhibit #1 and Exhibit #2？（）
Refer to the exhibit. For what purpose is the command show ip cef used？（）
Refer to the exhibit. On the basis of the output of the show spanning-tree inconsistentports command， which statement about interfaces FastEthernet 0/1 and FastEthernet 0/2 is true？（）