多项选择题

Refer to the exhibit. All routers are configured for BGP. EBGP routes received on router R2 showup in the BGP table on routers R1 and R3 but not in their IP routing tables. What would causethis？（）

A.EBGP multihop is not configured on routers R1 and R3
B.Routers R1 and R3 do not receive the same routes via an IGP
C.Synchronization in autonomous system 100 is turned is on
D.The BGP routers in autonomous system 100 are not logically fully-meshed
E.Synchronization in autonomous system 100 is turned is off

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多项选择题

Refer to the exhibit. On the basis of the information in the exhibit， which two statements are true？（）

A.When traffic is sent from the ISP to autonomous system 64512， the traffic will be forwarded toSanJose2 because of the higher MED value of SanJose2
B.The serial 0/0/1 interface on the ISP router has been configured with the set metric 50command
C.The output was generated by entering the show ip bgp command on the SanJose1 router
D.The output was generated by entering the show ip bgp command on the ISP router
E.The serial 0/0/1 interface on the ISP router has been configured with the set metric 75command
F.When traffic is sent from the ISP to autonomous system 64512， the traffic will be forwarded toSanJose1 because of the lower MED value of SanJose1

单项选择题

Refer to the exhibit. Router RT3 discovers network 202.176.56.0 via BGP. Which one of thesestatements is true？（）

A.RT1 advertised network 202.176.50.0/24 with a metric of 782
B.RT3 is directly connected to RT1 using subnet 192.168.1.0
C.RT3 has an IGP metric of 782 to reach 192.168.1.1
D.RT3 has a BGP metric of 782 to reach 192.168.1.1
E.RT1 advertised network 202.176.50.0/24 with a metric of 1000
F.RT3 has an IGP metric of 1782 to reach 202.176.56.0/24

多项选择题

Which of the following are shared distribution tree characteristics（）

A.Memory requirements are higher for shared distribution tree than for source distributiontree.
B.Creates a tree from a central RP to all last-hoprouters.
C.Uses a rendezvous point.
D.An optimal path is created between each source router and each last-hoprouter.
E.Place（S，G）entry in each router’smulticast routing table.
F.Place（*，G）entry in a router’smulticast routing to table.