As shown in the figure, Client1 and Client2 act as clients of RR1 and RR2 at the same time, RR1 and RR2 are in the same Cluster, and R has introduced 10 routes. Assume that the BCP configuration is correct.

The neighbor relationship has been established. How many routing entries are there in the BGP routing table of Client2 ultimately?

• A.0
• B.10
• C.15
• D.20

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In order to prevent hackers from attacking user equipment or network through MAC address, the MAC address of untrusted users can be configured as black hole MAC address to filter out illegal MAC

• A.TRUE
• B.FALSE

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In addition to the virtual link, what type of IPv6 address is the source IPv6 address of the He11o packet of OSPFv3?

• A.IPv6 anycast address
• B.Unique local address
• C.Global unicast address
• D.Link local address

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When OSPFv2 evolves to OSPFv3, the format and function of LSA are exactly the same, except that the network layer address in LSA changes from IPv4 to IPv6.

• A.FALSE
• B.TRUE

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The rules of RR advertising routes violate the rules of IBGP split horizon, so it may cause loops in the AS road. Which routing attributes does RR use to prevent loops?

• A.Nexthop
• B.Originator ID
• C.AS-PATH
• D.Cluster List

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