QUESTION: 141

If host HW1 on the network wants to join a video conference, what will the host do?

The host multicasts an IGMPv2 Membership Report message that carries the expected multicast address to the local network.
The host multicasts an IGMPv2 Membership Report message with the multicast address for all PIM routers (224.0.0.2) to the local network.
The host unicasts an IGMPv2 Membership Report message to the default router on the local network.
The host unicasts an IGMPv2 Membership Report message to the RP.

Answer(s): A

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QUESTION: 142

Which of the following statements correctly describes the corresponding MPLS TTL processing mode?

On an MPLS VPN, if the structure of the MPLS backbone network needs to be shielded, the Uniform mode is recommended for VPN packets.
In Uniform mode, when IP packets enter an MPLS network, the ingress node decrements the IP TTL by one and the MPLS TTL field has a fixed value.
The TTL field in an MPLS label serves the same function as that in an IP packet header. That is, the TTL is used to prevent loops on an MPLS network.
In Pipe mode, when IP packets enter an MPLS network, the ingress node decrements the IP TTL by one and copies this new value to the MPLS TTL field.

Answer(s): C

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QUESTION: 143

Which of the following statements regarding CE dual-homing features is false?

The VRFs of two PEs connected to the same CE can belong to different VPNs.
In the CE dual-homing networking, loops may occur. You can use route-tag resolve this issue.
A CE dual-homing network where a CE is connected to two PEs ensure high network reliability.
A CE connects to the backbone network through two links that work in load balancing or primary/secondary mode.

Answer(s): D

Reference:

https://support.huawei.com/enterprise/en/doc/EDOC1000178425/455e0daa/example-for-configuring-ce-dual-homing

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Level-1-2 IS can transmit Level-2 LSPs to a level-1 area. If the ATT bit in the Level-2 LSPs is set to 1, the Level-1 IS in the area can communicate with devices in other areas through the Level-1-2 IS.

TRUE
FALSE

Answer(s): A

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QUESTION: 141

QUESTION: 142

QUESTION: 143

Reference:

QUESTION: 144