Huawei H31-161-ENU HCIE-Carrier IP (Written) Online Training
Huawei H31-161-ENU Online Training
The questions for H31-161-ENU were last updated at Dec 24,2024.
- Exam Code: H31-161-ENU
- Exam Name: HCIE-Carrier IP (Written)
- Certification Provider: Huawei
- Latest update: Dec 24,2024
Exhibit:
Which statement about inter-AS MPLS VPN Option_B is false?
- A . The ASBR cannot be used as a PE simultaneously and a CE cannot be connected to an ASBR.
- B . When ASBRs are directly connected, packets transmitted on the VPN between them have only one label.
- C . The undo policy vpn-target command must be configured in the VPN4 address family view of the BGP neighbor of the ASBR to prevent routes from being filtered automatically.
- D . When ASBRs are directly connected, VPN traffic can be forwarder between them only after MPLS is enabled on the interfaces.
Exhibit:
As shown in the figure, inter-AS VPN Option A is used. CE 1 and CE 2 belong to the same VPNAS 100 and AS 200 run IGP and LDP, respectively.
ASBRs communicate with each other through EBGP. the loopback interface address of CE 1 is 10.1.1.1/24 Suppose VPNs configured on the PE and ASBR are both named vpn-1 and CE 2 can ping CE1 .
Which command can be ruin on ASBR 2 to find out route 10.1.1.1/24?
- A . Display ip routing-table vpn-instance vpn_1
- B . Display ip routing-table
- C . Display bgp vpnv4 all routing-table
Which of the following statements about the merits of the HoVPN networking are true?
- A . If the UPE are SPE are separated by an IP/IPMLS network, they can be connected through a generic routing encapsulation (GRE) or LSP runnel. A hierarchical MPLS VPN provides good scalability.
- B . The SPE and UP exchange routes and advertise labels through MP-BGP. Each UPE runs only one C BGP peer, reducing system overheads and simplifying configuration.
- C . The BGP/MPLS VPN can be deployed layers by layer. When the performance of a super strum provider edge (SPE) is insufficient, a user-end provider edge (UPE) can be added and the SPE moved to a lower layer. When the access capability of a UPE is insufficient, and SPE can be added.
- D . Packets are forwarded between a UPE and an SPE after being label. The UPE and SPE are connected through an interface (or a subinterface), helping reduce the usage of limited interface resources.
- E . Only local VPN routes need to be maintained on an SPE and remote routes on the SPE are represented by a default route or an aggregate route, reducing the load of the SPE.
Exhibit:
As shown in the figure, OSPF process 100 runs on both PEs and CEs, and VPN routers are transmitted between PE 1 and PE 2 through PGB CE 1 enables interface address 43.1.1.0/24 in area 0.A route to 43.1.10/24 .
How ever, does not exist in the routing table of CE 2 .
What are the possible causes?
- A . The VPN route to 43.1.1.0/24 does not exist in the routing table of PE 2.
- B . The LSDB of PE 1 does not have the type 1 LSA generated by CE 1.
- C . The LSDB of PE 12 does not have the type 1 LSA generated by CE 1.
- D . The public network rout to 43.1.1.0/24 does not exist in the routing table of PE2
As shown in the figure, a CE requires access to the internet, and PE 1is connected to the gateway.
Configurations on PE 1 are as follows:
PE 1 is connected to the internet gateway through interface 175.311.2 CE and CE 2 cannot ping the interface .
Which of the following statements are true?
- A . NAT translation must be configured on interface pos2/1.0 instead of interface s0./01.0
- B . A private network route must be configured on the internet gateway.
- C . The public parameter of a static default route must be configured.
- D . A default must be configured on CE an CE 2.
Which statement about primary VPN tunnel binding is false?
- A . Only the data destined for the specific peer device is transmitted through the n=bound primary VPN tunnel Data to other devices is transmitted using the default tunnel policy.
- B . Primary tunnel ensures that data can be transmitted from a VPN t a specific peer device permanently through a dedicate TE tunnel.
- C . Primary VPN tunnel binding means to bind a tunnel to a specific VPN. The bound tunnel is exclusive to the VPN.
- D . The bound primary tunnel can be selected sequentially.
As shown in the figure, CE and CE 2 belong to VPN A, CE 3 and CE 4 belong to VPN B, VPN A and VPN B share the public network tunnels between border PE 1 and PE 2, and LDP tunnels are configured between PE 1 and PE 2. To isolate resources for VPN service data from PE 2 to PE 1, a unidirectional TE tunnel is configured t forward data from PE1. The QoS policy propagation though the border gateway protocol (QPPB) feature is configured on PE 2, and a QoS policy is defined when VPNs are bound to tunnel interfaces.
Which of the following statements about the configurations on PE 2 are true?
- A . The mpls te commit command must be configured on the Tunnel1/0/0 interface,
- B . The mpls te cspf command must be configured in the global MPLS view.
- C . The maximum reserved bandwidth must not exceed the bandwidth of the tunnels.
- D . The maximum reserved bandwidth must not exceed the bandwidth of the physical links.
- E . The mpls te commit command must be configured on the Post/0/0 interface.
Which of the following statements about control words in the L2VPN are true?
- A . When SVC VLL is used, if PEs at two ends of a VC use different control words, the may not become Up.
- B . When Martini VLL is used, if PEs at two ends of a virtual connection (VC) use different control words, the VC may not become Up
- C . The control word can be used to identically the packet sequence.
- D . A control word generally has two bytes and can ne extended to four bytes.
- E . The control word can be used for packet padding For example, when the public network uses
Ethernet and the AC uses Peer-to-protocol (PPP), control words can be used to transfer and identify
PPP packet with a bytes.
Which of the following statements about the VPLS packet forwarding are true?
- A . If a PE receives broadcast packets from a local user, the PE forwards the packets to all other interfaces In the same VSI and all other PEs.
- B . If the destination MAC address of a packet is not a broadcast address and a PE has not learned the MAC address, the broadcast this packet in one VSI
- C . If the destination MAC address of a packets is not a broadcast address and a PE has not learned the MAC address, the PE broadcast this packet in on VSI.
- D . If a receive broadcast packet sent a remote PE, it forwards the packet only to the AC interface instead of other PEs.
Exhibit:
As shown in the figure, one enterprise has VPN A, the other has VPN B, and the two VPNs each have two CEs. The following requirements needs to be met.
VPNA-CA 1 can interwork with VPNA-CE 2
2>VPNA-CE 1 can interwork with VPNA-CE 2.
The figure shows the types of links between CEs and PEs and the IDs used in Martini mode .
Which the following VC ID configurations are correct?
- A . VCID1 =1, VCID2 = 2, VCID3 =3, VCID4 +4
- B . VCID1 =2, VCID2 = 2, VCID3 =2, VCID4 +2
- C . VCID1 =1, VCID2 = 2, VCID3 =1, VCID4 +2
- D . VCID1 =1, VCID2 = 1, VCID3 =2, VCID4 +2
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