The following description of the PPPoE data frame is correct? (Multiple choice questions).

• A.The Ethernet_Type domain is fixed to Ox8863
• B.Once a PPPoE session is established, all Ethernet packets are unicast
• C.The Session_ID of the PPP session is not allowed to change and must be the specified in the Discovery phase
• D.When PPPoE passes session data, Code must be set to Ox0

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DHCPv6 servers support additional configuration information such as DNS server addresses for hosts.

• A.TRUE
• B.FALSE

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As shown in the following figure, R1, R2, R3 establish a neighbor relationship of Level2. The IP routing table for R3 is correct (multiple choice).

• A.The 2::/64 route appears in the P route table
• B.2020::/64. The route appears in the IP routing table
• C.The 2019:/64 route appears in the IP routing table
• D.The 2021/64 route will appear in the IP routing table

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The following description of IGMPv1 and IGMPv2 is correct? (Multiple select).

• A.IGMPv2 message types include member departure packets
• B.IGMPv1 supports universal group queries
• C.IGMPv2 does not support specific group queries
• D.The IGMPv1 message type does not contain members leaving the packet AD

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In a multicast network running PIM-SM mode, how does the router choose the upstream interface?

• A.Interfaces to which multicast group members are directly connected
• B.The interface that is fast to the PIlM Join message
• C.Find the outbound interface corresponding to the mapping proxy in the unicast routing table
• D.Interface for sending PIM Heilo messages.
• E.looks up the outgoing interface corresponding to the RP address in the unicast routing table

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