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多项选择题

Which two statements concerning STP state changes are true？ （）

A.Upon bootup，a port transitions from blocking to forwarding because it assumes itself as root.
B.Upon bootup，a port transitions from blocking to listening because it assumes itself as root.
C.Upon bootup，a port transitions from listening to forwarding because it assumes itself as root.
D.If a forwarding port receives no BPDUs by the max_age time limit， it will transition to listening.
E.If a forwarding port receives an inferior BPDU， it will transition to listening.
F.If a blocked port receives no BPDUs by the max_age time limit， it will transition to listening.

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多项选择题In a customer’s network， VLAN Trunking Protocol （VTP） is running with a domain named main1. VLANs 1，2，3，4，5，10，20 are active on the network. Suddenly the whole network goes down. No traffic is being passed on VLANs 2，3，4，5，10，20， however traffic passes on VLAN 1 and indicates all switches are operational. Right before the network problem occurred， a switch named TEST1 was added to the network.  What three configuration issues on TEST1 could be causing the network outage？（）

A.TEST1 is configured as a VTP server with a different domain name.
B.TEST1 is not configured to participate in VTP.
C.TEST1 is configured as a VTP server with the domain name main1.
D.TEST1 has a lower VTP configuration revision than the current VTP revision.
E.TEST1 has a higher VTP configuration revision than the current VTP revision.
F.TEST1 is configured with only VLAN1.

单项选择题WhichbridgeIDbelongstoswitch1？（）

A.32928 000d bd33 029b
B.24623 000f 34f5 039b
C.32928 000d bd03 029b
D.32768 000d bd33 029b
E.32769 000d 65db 01dd
F.32815 000d bd03 029b
G.None of the other alternatives apply

单项选择题WhichportstateisinterfaceFa0 2ofswitch2inforVLANs1and160？（）

A.Listening
B.Learning
C.Disabled
D.Blocking
E.Forwarding
F.Discarding
G.None of the other alternatives apply

单项选择题WhichportrolehasinterfaceFa0 2ofswitch1adoptedforVLAN47？（）

A.Root port
B.Nondesigned port
C.Designated port
D.Backup port
E.Alternate port
F.None of the other alternatives apply

单项选择题WhichbridgeIDbelongstoswitch2？（）

A.32928 000d bd33 029b
B.24623 000f 34f5 039b
C.32928 000d bd03 029b
D.32768 000d bd33 029b
E.32769 000d 65db 01dd
F.32815 000d bd03 029b
G.None of the other alternatives apply