Huawei HCIP-Datacom H12-831_V1.0

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Huawei HCIP-Datacom-Advanced Routing & Switching Technology V1.0 Sample Questions:

1. In the OSPF network shown in the figure, the network engineer found that the Router ID configuration of R1 and R2 is the same, and both R1 and R2 have introduced the default route (default-route-advertise always). Which of the following descriptions of this scenario is wrong?

A) R2 and R4 can establish a neighbor relationship
B) A routing loop may occur between R3 and R4
C) R1 and R3 can establish a neighbor relationship
D) R1 and R2 can establish a neighbor relationship

2. Which of the following phenomena may occur when a layer 2 loop appears in the network?
(Multiple choice)

A) The service interface indicator light flashes frequently
B) CPU usage is too high
C) Interface bandwidth utilization is too high
D) The device cannot log in or runs slowly after logging in

3. The exchange of Hello messages between two LSRs (Label switching Routers) triggers the establishment of an LDP session. The Hello message carries the transport address. The device with the smaller transport address will act as the active party and initiate the establishment of a TCP connection.

A) True
B) False

4. In order to protect the BGP protocol from attacks, Keychain authentication can be used between BGP neighbors to reduce the possibility of attacks. The keychain has a set of passwords that can be automatically switched according to the configuration, which is suitable for networks with high security requirements.

A) True
B) False

5. In the OSPF network shown in the figure, R1 and R2 achieve intercommunication through Loopback0 interface through OSPF.

At the same time, R1 and R2 have enabled the MPLS LDP function, and the LDP transmission address is the IP address of the Loopback0 interface. The network engineer found that R1 and R2 could not establish an LDP session, so he first executed the command shown in the figure on R2. Based on this, which of the following reasons may cause the failure of establishing an LDP session between R1 and R2? (Multiple choice)

A) R1 GE0/0/1 interface refuses to receive packets with TCP destination port 646
B) R2 GE0/0/1 interface refuses to receive packets with source IP address 10.0.12.1
C) R1 GE0/0/1 interface refuses to receive packets with a destination IP address of 224.0.0.5
D) R2 GE0/0/1 interface refuses to receive packets with a destination IP address of 224.0.0.2

Solutions: