HCIP-Datacom-Advanced Routing & Switching Technology v1.0
Question 1
According to this figure, it can be known that in VLAN300, 0 MAC drift occurred by 00e0-fc3d-3bdb from 17:22:38 to 17:22.44 on 2020-06-04.
- A. 5
- B. 65535
- C. 300
- D. 1
Answer : A
Question 2
According to this picture, we can judge:
- A. R4 does not have any IS-IS neighbors
- B. R4 and ee8c.aOc2.baf3 have established IPv4 and IPv6 IS-IS neighbors
- C. R4 and ee8c.aOe2.baf3 only established IPv6 IS-IS neighbors
- D. R4 and ee8c.aOc2.bat3 only established IPv4 IS-IS neighbors
Answer : B
Question 3
As shown in the figure, all interfaces of the router enable OSPF. Which of the following statements is correct?
- A. The Type1 LSA generated by R2 in area 0 contains 10.0.2.2/32 routing information
- B. The Type5 LSA generated by R2 in area 0 contains 10.0.2.2/32 routing information
- C. The Type2 LSA generated by R2 in area 0 contains 10.0.2.2/24 routing information
- D. The Type3 LSA generated by R2 in area 0 contains 10.0.2.2/32 routing information
Answer : A
Question 4
An engineer used two routers to test IPv6 services, and simulated the interconnection between headquarters and branches by running BGP4+.
The logical topology of the network is shown in the figure. Regarding the transmission of IPv6 routes between two devices, which of the following statements is wrong?
- A. When routing, the Next_Hop attribute must be an IPv6 global unicast address
- B. BGP4+ transmits routing information between peers through Update messages
- C. If the Update message carries the MP_REACH_NLRI attribute, it means that the advertised route is reachable
- D. When routing, it will carry AS_Path and other recognized mandatory attributes
Answer : A
Question 5
As shown in the figure, Site1 and Site2 need to achieve mutual access through the operator's BGP/MPLS IPVPN. It is known that the public network tunnel between PE1 and PE2 has been established (the label information is shown in the figure), and PF1 has advertised the 192.168.1.0/24 network segment route in Site1 to PE2 through the MP.JIBGP neighbor relationship, and the route learning is normal.
When capturing the data that Site2 visits the 192.168.1.0/24 of Site1 between P and PE1, what should be the outermost label?
- A. 6661
- B. 3
- C. 6662
- D. 8888
Answer : A
Question 6
Part of the configuration of R1 is as follows. Which statement about OSPF on R1 is correct?
- A. The device type of R1 is Level-2
- B. The device type of R1 cannot be determined
- C. The device type of R1 is Leve1-1
- D. The device type of R1 is Level-1-2
Answer : D
Question 7
Which of the following regarding the configuration description is wrong?
- A. If the DHCP request message received by the GigabitEthemnet0/0/1 interface does not contain the SutOption information of Option82, the device will generate Option82 and insert it into the message
- B. Enabling the DHCP Snooping configuration can be used to prevent DHCP Server counterfeiters from attacking
- C. Configure GigabitEthernet0/0/1 as a trusted interface
- D. Enabling the DHCP Snooping configuration can be used to prevent ARP spoofing attacks
Answer : D
Question 8
Assuming that the neighbor relationship between BGP routers has been established successfully, the configuration on R1 is as shown in the figure.
Which router can the route entry 10.10.10.0/24 advertised by R1 be delivered to?
- A. R1
- B. R2
- C. R3
- D. R4
Answer : C
Question 9
According to the configuration shown in the figure below, you can know that how many interfaces of R4 are advertised into IS-IS?
- A. 1
- B. 3
- C. 2
- D. 0
Answer : B
Question 10
As shown in the figure:
- A. The LSA in the figure is generated by this router
- B. The destination network described by this LSA is 10.0.23.0/24
- C. The type of the LSA is AS-exterma1-LSA
- D. This device is ABR
Answer : B
Question 11
As shown in the figure:
- A. There is Type 5 LSA flooding in Area2
- B. There is no Type 3 LSA flooding in Area2
- C. There is Type 5 LSA flooding in Area1
- D. There is no Type3 LSA flooding in Area1
Answer : D
Question 12
As shown in the figure:
- A. IS-Leve1 of R3 and R1 do not match
- B. R3 and R1 have different area codes
- C. The IIH certification of R3 and R1 failed
- D. The System ID of R3 and R1 are duplicated
Answer : D
Question 13
OSPFv2 is an IGP running on an IPv4 network; OSPFv3 is an IGP running on an IPv6 network. The basic working mechanism of OSPFv3 is the same as OSPFv2, such as the election of DR and BDR. As shown in the figure, an engineer uses three routers to test IPv6 services. He wants to realize the interconnection and interoperability of IPv6 networks by running OSPFv3.
Which of the following statements regarding the election of DR on this network is correct?
- A. After the network converges, the engineer changes the priority of R1 to 100, the priority of R2 to 10, and the default value of R3. When the network converges again, R1 is DR and R2 is BDR
- B. After the network converges, a new device R4 is added to the broadcast link, and the priority of R4 is 150. When the network converges again, R4 is the DR
- C. After the network converges, R1 is powered off and restarted. When the network converges again, R3 is the DR
- D. After the network converges, R1 is the DR
Answer : C
Question 14
As shown in the figure, the cost value of the link that all interfaces of the router enable OSPF is identified in the figure. Loogback0 interfect of R2 is advertised in area 0. In area 1, both R2 and R3 will be transmitted in the form of Typae3 LSA 10.0.2.2/32 routing information.
- A. TRUE
- B. FALSE
Answer : A
Question 15
An enterprise purchased the leased lines of two operators. In order to optimize the route, the enterprise used the 6GP protocol to learn routing entries of the two operators. However, the company found that after such a configuration, the traffic of the export routing increased greatly. After the network engineering investigation, it was found that the traffic of the two operators was passed to each other through the company's export router.
Therefore, the company intends to use routing strategies to prevent the traffic between different operators from passing each other. Is the configuration in the figure correct?
- A. TRUE
- B. FALSE
Answer : A