To join a multicast based video session within the HW network, Host HW1 must do which of the following?

• A.Multicast an IGMPv2 membership report to the "All-PIM-Routers" multicast group and 224.0.0.2 on the local subnet.
• B.Unicast an IGMPv2 membership report to the Rendezvous Point for the group.
• C.Multicast an IGMPv2 membership report on the local subnet with a destination IP Address set to the multicast group being joined.
• D.Unicast an IGMPv2 membership report to the default router on the local subnet

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A company built the network as follows OSPF OSPF S1- network diagram, the roads form a chain neighbor
relationship, all declare their own loop address device ring, one day
R2.S2-R1 0 Link Out Road Fault, is the following description correct? (area divided)

• A.R5 R2 can learn the loopback loop of the normal
• B.R1 R2 can learn the loopback loop of the normal
• C.R3 R2 can't learn the loop route of the loop
• D.R3 R2 can learn the loopback loop of the normal

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Which of the following configurations regarding OSPFv3 route aggregation are true?

• A.[Huawei]ospfv3 1
  [Huawei-ospfv3-1]asbr-summary fc00:0:0:: 48 cost 20 tag 100
• B.[Huawei]ospfv3 1
  [Huawei-ospfv3-1]abr-summary fc00:0:0:: 48 cost 400
• C.[Huawei]ospfv3 1
  [Huawei-ospfv3-1]area 1
  [Huawei-ospfv3-1-area-0.0.0.1]abr-summary fc00:0:0:: 48 cost 400
• D.[Huawei]ospfv3 1
  [Huawei-ospfv3-1]area 1
  [Huawei-ospfv3-1-area-0.0.0.1]asbr-summary fc00:0:0:: 48 cost 20 tag 100
• E.[Huawei]interface gigabitethernet 1/0/0
  [Huawei- Gigabitethernet1/0/0]asbr-summary fc00:0:0:: 48 cost 20

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As shown in the figure below, R1 and R2 are connected through a PPP link, and the IP addresses on the directly connected interfaces are not on the same network segment. R1 and R2 can communicate with each other through the directly connected interfaces. However, communication on the Ethernet link fails if the IP addresses on the directly connected interfaces are on the same network segment. What are the causes of this?

• A.The Ethernet header does not need to be encapsulated into data packets between R1 and R2 that are directly connected through a POS interface, and ARP does not need be used to obtain MAC addresses.
• B.R1 and R2 that are directly connected through a POS interface learn the 24-bit subnet route of each other through IPCP.
• C.R1 and R2 that are directly connected through a POS interface learn the MAC address of each other using LCP, and ARP does not need to be used to obtain MAC addresses.
• D.R1 and R2 that are directly connected through a POS interface learn the 32-bit host route of each other through IPCP.

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In which scenario can an AS_Path-filter be used?

• A.Apply clause in a router-policy
• B.If-match clause in a route-policy
• C.Filtering routes sent to BGP peers based on the AS_path attributes. For example, the peer X.X.X.X as-Path filter export command.
• D.Filtering routers received from BGP peers based on the AS_Path attribute. For example, the peer X.X.X.X as-path-filter import command.

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