BGP4+ carries the next hop address of the IPv6 route through the Next Hop attribute in the Update packet. (Moved into Attribute 14)

• A.False
• B.True

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BGP routing policies can control the advertisement and reception of routes.

• A.True
• B.False

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Which of the following reasons may cause the hosts in the same VLAN of the LAN to fail to communicate with each other?

• A.interface is artificialshutdownor the physical interface is damaged
• B.The wrong port is configured on the switch andMA, Caddress binding
• C.switchMA, Caddress learning errors
• D.Port isolation is configured on the switch

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(Connection question) Please match the command with the realized function.

Correct Answer:

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OSPFv2 is an IGP running on an IPv4 network, OSPFvV3 is an ICP running on an IPv6 network. OSPFv3 and OSPFv2 have the same message types, including Hallo messages, DD messages, LSU messages, LSU messages and SACK messages.
Regarding OSPFv3 packets, which of the following statements is correct?

• A.OSPFv3 uses IPv6 multicast addresses FFO2::5 and FFO2:.6 to send OSPFv3 packets
• B.The He11o packet of OSPFv3 carries the IPv6 address prefix list of the router interface
• C.OSPFv3 uses the link-local address as the source address of the sent message, and the message can be forwarded outside the range of the originating link
• D.OSPFv3 uses the authentication field in the header of the message to complete message authentication

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