Huawei H12-831_V1.0-ENU Dumps (V11.02) – Choose to Prepare for Your HCIP-Datacom-Advanced Routing & Switching Technology V1.0 Exam

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1. In the IS-IS network shown in the figure, R1 introduces the default route through the "default-route-advertise always level-1" command. Which of the following descriptions are correct? (Multiple choice)

2. In the IS-IS network shown in the figure, R1 introduces the default route through the "default-route-advertise always level-1" command. Which of the following descriptions is wrong?

3. 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?

4. In the OSPF network shown in the figure, the link cost value has been marked in the figure. R1 enables OSPF IP FRR. The main path for R1 to reach 10.0.3.3/32 is R1-R2-R3, and the backup path is R1-R4-R2-R3.

5. In the OSPF network shown in the figure, the cost value of the link is marked in the figure. R1 has enabled OSPP IP FR and configured the "maximum load-balancing 8" command in the OSPF process. Which of the following is the cost value of reaching 10.0.35.0/24 in R1's routing table?

6. The OSPF protocol requires routers in the same area to save the same link state database LSDB. As the number of routes on the network continues to increase, some routers cannot carry so much routing information due to limited system resources. This state is called database overload.

If all routers in an OSPE network are configured with "Isdb-overf1low-limit number 7", which of the following scenarios may cause the router to enter the Overflow state? (Multiple choice)

7. 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.

8. In the network shown in the figure, adjacent routers use directly connected interfaces to establish EBGP neighbor relationships. The Router ID of each device is 10.0.XX, and the AS number is 6500x, where X is the router number. R1 and R4 both have static routes to 192.168.1.0/24, which are introduced into BGP through import. R1 adds the Community attribute value (1:1) when sending routes to its neighbors, and all routers in the network are enabled to transmit community attributes.

R2 and R3 are configured with routing policies that reject routes with a community attribute value of 1:1. Which of the following is the path for traffic from R3 to 192.168.1.0/24?

9. In the network shown in the figure, adjacent routers use directly connected interfaces to establish EBGP neighbor relationships. The AS number is 6500X, where X is the router number. R1 and R4 both have static routes to 192.168.1.0/24, which are introduced into BGP through import. The maximum number of equal-cost routes configured for EBGP load sharing on R3 is 8.

By default, the number of equal-cost routes from R3 to 192.168.1.0/24 is which of the following?

10. Use "display ospfv3 peer verbose" to view OSPFv3 neighbor information. In the output information, you can see the peer's Router ID, the global unicast address of the peer's interface, the neighbor's status, and other content.

11. In the OSPFv3 network shown in the figure, the interconnected ports of R1, R2, and R3 have OSPFv3 enabled, and the Router ID of each device is 10.0.XX, where X is the device number. Check the detailed information of a certain LSA on R3. From the output information, it can be inferred that the LSA is generated by R2, and it describes the IPv6 prefix address associated with the Network-LSA.

12. In the OSPFv3 network shown in the figure, the IPv6 address of R3 Loopback0 interface is 2000::3/128, and OSPFv3 is enabled.

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

13. The LSP information generated by a certain IS-IS router is shown in the figure. From the LSP information, it can be inferred that the router is not the DIS of this link.

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

What types of LSAs are in area 0 by default? (Multiple choice)

15. In the OSPFv3 network shown in the figure, area 1 is a stub area, area 2 is a common area, and area 3 is an NSSA area. The IPv6 address of the R6Loopback0 interface is 2000::6/128. The Router ID of each device is 10.0.XX, where X is the device number.

Which of the following descriptions is wrong?

16. When creating an IPv6 static route, for a point-to-point interface, the outbound interface must be specified. For a broadcast type interface, the next hop must be specified.

17. In the OSPFv3 network shown in the figure, the interconnected ports of R1, R2, and R3 have OSPFv3 enabled, and the Router ID of each device is 10.0.XX, where x is the device number. Check the detailed information of a certain LSA on R3, and you can infer from the output information that R1 and R2 are DRs in the network.

18. The Link-LSA generated by an OSPFv3 router is shown in the figure. Which of the following is the number of global unicast addresses configured on the interface?

19. To support the processing and calculation of IPv6 routes, IS-IS adds a new MLPID in TLV No. 129.

MLPID is an 8-bit field that identifies a network layer protocol message. Which of the following is the MLPID value for IPv6?

20. In the OSPFv3 network shown in the figure, area 1 is the Totally Stub area, area 2 is the normal area, and area 3 is the Totally NSSA area. The IPv6 address of the R6 Lopback0 interface is 2000::6/128. The Router ID of each device is 10.0.XX, where X is the device number.

When all links are normal, which of the following descriptions are correct by default? (Multiple choice)

21. The Router ID of R4 is 10.0.4.4. In the LSDB of R4, the LSA shown in the figure is seen. The network engineer makes the following inferences based on the LSA. Which one is wrong?

22. There are many types of MAC address entries on the switch. Which of the following types are manually configured by the user and cannot be aged? (Multiple choice)

23. As shown in the figure, the network administrator deploys the DHCP Snooping function on the switch to defend against attacks by DHCP Server impersonators. Which of the following interfaces should be set as a DHCP trusted interface?

24. The network administrator has deployed the DHCP snooping function on the access switch. Which of the following solutions can be used to reduce the impact of attackers maliciously applying for IP addresses and causing DHCP Server denial of service? (Multiple choice)

25. When the switch is configured with port isolation function, by default, different hosts belonging to the same VLAN cannot communicate at layer 1 and layer 3.

26. On the same switch interface, the administrator can only configure traffic suppression for one of the following: broadcast, unknown multicast, unknown unicast, known multicast, and known unicast packets.

27. As shown in the figure, VLAN aggregation is deployed in a switching network, where Sub-VLAN 10 and Sub-VLAN 20 are added to Super-VLAN 100. If PC1 and PC2, PC1 and PC3 are to be able to communicate with each other, which of the following descriptions about the L3 Switch interface type and the VLAN that should be allowed is correct?

28. The MPLS label is a 20-bit local identifier. When the administrator configures a static LSP, the incoming label and outgoing label can be manually specified. The value range is 0~1048575.

29. 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.

30. MPLS determines the upstream and downstream relationship based on the data forwarding direction. The MPLS label message is sent from the upstream LSR and received and processed by the downstream LSR. Similarly, the release of MPLS labels is also distributed one by one from upstream to downstream.

31. MPLS needs to assign labels to messages in advance and establish an LSP before it can forward messages. LSP is divided into static LSP and dynamic LSP. Which of the following protocols can be used to establish a dynamic LSP? (Multiple choice)

32. As shown in the figure, an enterprise hopes to achieve secure mutual visits between the headquarters and branches, as well as business isolation between the R&D area and the non-R&D area without changing the network deployment.

To meet this requirement, the administrator deploys BGP/MPLS IP VPN in the network. Which of the following descriptions of this scenario are correct? (Multiple choice)

33. In a BGP/IPLS IP VPN network, the output information of a PE device VPN1 is shown in the figure. When the VPIv4 route corresponding to VPN1 is advertised to the remote PE, which VPNs of the remote PE will receive the route? (Multiple choice)

ip vpn-instance VPN1

ipv4-family

route-distinguisher 100:1

vpn-target 100:1 200:1 300:1 export-extcommunity

34. In a certain MPLS network, the LSP information of R1 and R3 is shown in the figure. At this time, the administrator enters the command ping -a 1.1.1.1 3.3.3.3 on R1. Which of the following descriptions of this scenario is correct?

35. In a BGP/MPLS IP VPN network, VPNv4 routing transfers carry Export RT values. Which of the following path attributes does MP-BGP use to carry Export RT?

36. As shown in the figure, RIR4 is one of the four routers in AS 123. They all run OSPE and realize the routing interconnection within the AS. Among them, the two network segments 10.1.1.0/24 and 10.4.4.0/24 are not published to OSPF. Now, R1 and R4 have established an IBGP peer relationship based on the Loopback0 interface, and published the network segments 10.1.1.0/24 and 10.4.4.0/24 to BGP respectively.

Which of the following methods can enable PC1 and PC2 to communicate with each other? (Multiple choice)

37. In the Hub&Spoke network shown in the figure, Hub-PE can allow local AS number duplication through manual configuration to achieve correct routing transmission.

38. The equipment operating environment refers to the external environment such as the equipment room, power supply, and heat dissipation where the equipment operates. This is the basic condition for the equipment to operate. For the maintenance of the equipment operating environment, the staff can only complete it by visiting the site in person.

39. Network maintenance can be divided into two categories: daily maintenance and troubleshooting. If the maintenance personnel have a high level of technical skills, they can maintain the network based on experience without following operating specifications.

40. A network device has established an OSPF neighbor relationship. The configuration of its GE0/0/0 interface is shown in the figure. Which of the following commands executed on this interface will not affect the OSPF neighbor status of this interface? (Multiple choice)

41. A network engineer accidentally deleted the IP address of an interface through the command line. If he wants to view the deleted IP address, which of the following information should he query?

42. Which of the following operations does a network engineer not need to perform when processing a single-hop BFD session Dom?

43. A network engineer captured a multicast data frame whose destination MAC address is 01-00-5e-00-01-01. Based on this analysis, which of the following cannot be the destination IPv4 address?

44. When the device logs in to other devices as an SSH client and fails to log in using public key authentication, which of the following are possible reasons? (Multiple choice)

45. The detection mechanism of BFD is that two systems establish a BFD session and periodically send BFD control messages along the path between them. If one party does not receive the BFD control message within a specified time, it is considered that a fault has occurred on the path.

Which of the following reasons will not cause the BFD session to go Down?

46. In the network shown in the figure, R1 and R2 are configured with single-hop BFD detection. The network engineer found that the BFD session was Down, so he queried the configuration related to R1 and R2 BD. The configuration information has been marked in the figure. According to the configuration information, the reason for the BFD session Down is that the time parameters configured on R1 and R2 do not match.

47. If a network engineer forgets the console port password when troubleshooting, Huawei Net Engine AR series routers support configuration in the Boot ROM to skip the console port password startup.

48. The networks of large and medium-sized enterprises can be divided into access layer, aggregation layer and core layer. Network engineers need to formulate cutover plans for any operations performed at any layer that affect the existing network services.

49. A network engineer wants to clear the serial port login password. Which of the following should he enter?

50. When executing a cutover project, network engineers can perform remote operations at the customer's network maintenance center and guide on-site construction personnel to complete hardware-related operations, such as powering on equipment and connecting equipment.


 

 

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