The router interface output information is as follows, which is correct? (Muitiple choice)

• A.The IPv6 protocol status of this interface is UP.
• B.The link-local address of this interface is FE80::2E0:FCFF:FE6F:4F36
• C.The global unicast address of this interface is 2001::12:1
• D.The MTU of this interface is 1500.

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Refer to the graphic.

When R2 forwards data to R3 from R1, which of the following items will change? (Multiple Choice)

• A.The source MAC address.
• B.The source IP address.
• C.The destination MAC address.
• D.The destination IP address.

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The following about IPv6 stateless address autoconfiguration and DHCPv6, which ic correct? (Muitiple choice)

• A.IPv6 stateless address autoconfiguration and DHCPv6 can allocate related configuration information such as DNS address to the host.
• B.DHCPv6 can be divided into DHCPv6 stateful autoconfiguration and DHCPv6 stateless autoconfiguration.
• C.DHCPv6 is more manageable than stateless autoconfiguration
• D.IPv6 stateless address autoconfiguration uses RA and RS messages

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The MAC address table of the existing switch is as follows. The switch receives a data frame with a source MAC address of 5489-9811-0b49 and a destination MAC address of 5489-989d-1d30. Which of the following statements are correct? (Multiple Choice)

• A.If the data frame is received from Eth0/0/1, the switch floods the data frame.
• B.If this data frame is received from Eth0/0/1, the switch will discard this data frame.
• C.If the data frame is received from the Eth0/0/3 port, the switch forwards the data frame from the Eth0/01 port.
• D.If the data frame is received from Eth0/0/1, the switch forwards the data frame from the Eth0/0/3 port.

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Which of the following cases will the switch running RSTP generate a configuration BPDU with TC set?

• A.Edge port migrates to Discarding state
• B.Backup port down
• C.Edge port migrates to Forwarding state
• D.A non-edge port migrates to the Forwarding state

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