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Huawei HCNP-R&S Fast Track Sample Questions:

1. Packet loss occurs only at the transmit end.

A) FALSE
B) TRUE

2. In a MPLS VPN network, two-layer MPLS labels are added into data packets before they are transmitted over the public network.
Which of the following statements regarding data packet processing are true? (Multiple Choice)

A) The penultimate hop removes the outer label if the outer label in the data packet is explicit null label 3.
B) The peer PE sends the data packet to the correct VPN based on the inner label.
C) The penultimate hop removes the outer label before forwarding the data packet to a peer PE.
D) The IP data packet received by the peer PE does not carry labels.

3. When a BGP muter receives a route with an unreachable next hop, how does it process the route?

A) It accepts and adds this route to its BGP muting table. This route will participate in BGP mute selection and may become the optimal route and be added to the IP routing table.
B) It does not add this route to its BGP routing table and discards this route.
C) It sends an error message to the router that sends the Update message.
D) It accepts and adds this route to its BGP routing table. However, this route will not be preferred by BGP and not added to the IP routing table.

4. According to BGP route selection rules, the manually summarized routes generated using the aggregate command are preferred over the automatically summarized routes generated using the summary automatic command.

A) FALSE
B) TRUE

5. Which of the following statements regarding the MPLS forwarding process is false?

A) If a LSP fails to forward data, the MPLS control plane responsible for ISP setup can detect this error.
B) The main function of MPLS forwarding plane can add labels or delete labels from an IP packet, and forward the received packets based on the label forwarding table. The forwarding plane is connection-oriented.
C) After an IP packet enters the MPLS network, the ingress LER will analyze the IP packet and add proper labels to the packet.
D) MPLS can use Ping or Traceroute to detect LSP errors and locate faulty nodes.

Solutions: