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Huawei HCIP-Routing&Switching-IERS(Huawei Certified ICT Professional-Implementing Enterprise Routing and Switching Network) Sample Questions:

1. Which of the description of RP In PIM-SM is wrong?

A) All the multicast streams in the Shared tree are forwarded to the receiver via RP.
B) An RP can serve multiple multicast groups simultaneously, but a multicast group can only correspond to multiple RPS.
C) All of the group members and the multicast source that sent the multicast data to the group were all converged on the unique RP.
D) RP can be responsible for the forwarding of several or all multicast groups, and there can be an RP in the network.

2. After configuring multicast load sharing, which of the following may occur? (Multiple choice)

A) After the multicast load balancing is configured, load balancing on the equal-cost routes is guaranteed.
B) When the load on the equal-cost route is equal, the traffic may be unbalanced. This is because the group load balancing is based on multicast routing entries rather than multicast data packets.
C) Multicast load sharing can also work if there is no thin equal-cost route
D) When using load balancing by group, load balancing on equal-cost routes cannot be guaranteed due to the limitation of the hash algorithm itself.

3. The differences between IGMP versions are: (Multiple Choice)

A) IGMPv1 does not support specific group queries but IGMPv2 support.
B) IGMPv1/v2/v3 cannot support the SSM model.
C) For members leaving, IGMPv2/v3 can leave actively, but IGMPv1 cannot.
D) IGMPv1/v2 cannot elect the querier on its own, but IGMPv3 can.

4. Which of the description of the shortest path tree for OSPF is correct?

A) The first stage calculates the Stub network segment, and the second phase calculates the routing node.
B) The first phase calculates the routing node and the second stage calculates the Stub network segment.
C) The first stage calculates the Stub network segment, and the second phase calculates the router node and Transit segment.
D) The first phase calculates the routing node and Transit network segment, and the second stage calculates the Stub network segment.

5. The difference between the PIM-SM protocol and the PIM-DM protocol is: (Multiple Choice)

A) PIM-SM assumes that there are a small number of recipients in the network, while PIM-DM assumes that there are a large number of recipients in the network.
B) PIM-SM has RPT and SPT trees, while PIM-DM only has SPT trees.
C) PIM-SM can implement on-demand forwarding. There is no redundant traffic in the network, and PIM-DM periodically floods, and there is no redundant traffic in the network.
D) The BSR/RP exists only in the PIM-SM network, but not in the PIM-DM.

Solutions: