The device port running STP protocol is in Forwarding state. Which of the following statements is correct?

• A.The port not only forwards user traffic but also processes BPDU packets.
• B.The port only receives and processes BPDUs, and does not forward user traffic.
• C.The port not only does not process BPDU packets, but also does not forward user traffic.
• D.The port will build a MAC address table based on the received user traffic, but does not forward user traffic.

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Which of the following protocols does the RA message used by IPv6 stateless autoconfiguration belong to?

• A.UDPv6
• B.TCPv6
• C.IGMPv6
• D.ICMPv6

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Which of the following IPv6 addresses is a multicast address? ()

• A.FE80:2EO:FCFF:FEEF:FEC
• B.2000::2EO:FCFF:FEEF:FEC
• C.FC0O:2EO:FCFF:FEEF:FEC
• D.FF02::2EO:FCFF:FEEF:FEC

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In the network shown in the figure below, switch A and router A are connected through two links, and the two links are aggregated in manual load sharing mode. The aggregated port number is 1, and the aggregated link performs data when forwarding, you need to carry VLAN TAG 100. Switch A uses Trunk link. Which of the following configurations should be used for Switch A?

• A.
• B.
• C.
• D.

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What percentage does the DHCP client expect to send the lease renewal message for the first time?

• A.0.875
• B.0.25
• C.0.5
• D.1

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