Which port state is interface Fa0/2 of switch 2 in for VLANs 1 and 160？ （）

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

单项选择题WhichspanningTreeProtocolhasbeenimplementedonswitch2？（）

A.STP/IEEE 802.1D
B.MSTP/IEEE 802.1s
C.PVST+
D.PVRST
E.None of the other alternatives apply

多项选择题Whichthreecharacteristicsaretrueaboutvoicetrafficinthecampusnetwork？（）

A.TCP retransmits
B.benign
C.greedy
D.drop sensitive
E.smooth
F.delay insensitive

单项选择题Refer to the exhibit. The command spanning-tree guard root is configured on interface Gi0 0 on both switch S2 and S5. The global configuration command spanning-tree uplinkfast has been configured on both switch S2 and S5. The link between switch S4 and S5 fails.  Will Host A be able to reach Host B？ （）

A.Yes. Traffic can pass either from switch S6 to S3 to S2 to S1， or， from switch S6 to S5 to S2 to S1.
B.No. Traffic will pass from switch S6 to S5 and dead-end at interface Gi 0/0.
C.No. Traffic will loop back and forth between switch S5 and S2.
D.Yes. Traffic will pass from switch S6 to S3 to S2 to S1.
E.No. Traffic will either pass from switch S6 to S5 and dead-end， or traffic will pass from switch S6 to S3 to S2 and dead-end.