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

1. 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

2. To prevent attackers from forging BGP messages to attack devices, you can protect devices by configuring the GTS function to detect the range of TTL values in the IP message header. If a device is configured with "peer xxxx valid-ttl-hops 100", the valid range of TTL values of the detected messages is [155, 255].

A) True
B) False

3. In the OSPFv3 network shown in the figure, area 1 is an NSSA area. R1 imports the external route 2000::1/128 into OSPFv3.

Which of the following descriptions are correct by default? (Multiple choice)

A) R1 will generate an NSSA LSA describing 2001::1/128
B) There is no default route in the routing table of R1 and R2.
C) R2 is responsible for converting the NSSA LSA describing 2001::1/128 generated by R1 into an AS-External-LSA
D) R1 will generate an AS-Externa1-LSA describing 2001::1/128

4. In the OSPP network shown in the figure, R1 and R2 achieve Lopback0 interface interconnection 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 a destination IP address of 224.0.0.5
B) R2 GE0/0/1 interface refuses to receive packets with source IP address 10.0.12.1
C) R2 GEO/0/1 interface refuses to receive packets with a destination IP address of 224.0.0.2
D) R1 GE0/0/1 interface refuses to receive ICP packets with destination port 646

5. In the OSPF network shown in the figure, the area numbers are marked in the figure, where area
1 is the Stub area, area 2 is the Totally Stub area, and area 3 is the NSSA area. By default, which of the following routers does not have a default route in its routing table?

A) R6
B) R4
C) R3
D) R5

Solutions: