H31-161の無料問題集（180題）、H31-161認定試験参考書

Huawei H31-161 問題集

試験コード：H31-161

試験名称：HCIE-Carrier IP (Written)

最近更新時間：2024-04-23

問題と解答：全180問

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質問 1：
Refer to the exhibit.

As shown in the figure, inter-AS VPN Option A is used. CE 1 and CE 2 belong to the same VPN.AS 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 CE 2 can ping CE 1. Which router allocates an inner label when PE 2 forwards packets from CE 2 to CE
1?
A. PE 1
B. ASBR 1
C. ASBR 2
D. P1
E. P2
正解：C

質問 2：
In which L2VPN technology is L2VPN information transferred through the extended LDP signaling?
A. Martini
B. SVC
C. Cross circuit connection (CCC)
D. Kompella
正解：A

質問 3：
In the access architecture of an IP bearer network, the OSPF protocol is enabled between two access routers, two firewalls (in transparent mode), and two Layer 3 switches. Softswitches work in active/standby mode. VRRP is enabled between the softswitches to provide a gateway. In normalcases, SW1 is the master router and SW2 is the backup router. Considering the reliability of the access network, how would you plan the cost value of each link in the OSPF area?
A. d>a+b+c
B. a=b=c=d
C. a=b>c=d
D. c>a+b+d
正解：A

質問 4：
Configure VRFs and relevant policies on a PE as follows:

If a route is imported to the routing table of VRF 1, which VRF can the route match?
A. vrf3
B. vrf2
C. vrf4
正解：B

質問 5：
As shown in the figure, for SWA, Eth0/2 belongs to VLAN 2, and Eth0/24 (PVID = 2) is a trunk interface and permits packets from VLAN 2 and VLAN 3 to pass through; for SWB, Eth0/2 belongs to VLAN 2, Eth0/3 belongs to VLAN 3, and Eth0/24 (PVID) is a trunk interface and permits packets from VLAN 2 and VLAN 3 to pass through. Which statement is true?

A. PC A can ping neither PC B nor PC C.
B. PC A can ping PC C instead of PC B.
C. PC A can ping PC B instead of PC C.
D. PC A can ping both PC B and PC C.
正解：B

質問 6：

A. The static route is imported to the OSPF,
and the OSPF route is imported to the VPN instance of the BGP. The MP-IBGP neighbor relationship is established among the PEs. Subinterfaces are enabled in the links between PEs and are bound to the same VPN to exchange VPN route information between PEs. How many routes on PE1-B can reach CE 3?
B. Only the OSPF category-5 route can reach CE 3.
C. No route
D. Only one (The route leading to CE 3 is learned based on the IBGP neighbor relationship between PEs. The other route is filtered out by OSPF loopback detection.)
E. Two (One route is learned based on the IBGP neighbor relationship between PEs, and the other one is the OSPF category-5 route.)
正解：C

質問 7：
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 need to be met.VPNA-CE 1 can interwork with VPNA-CE 2. 2>VPNB-CE 1 can interwork with VPNB-CE 2.
The figure shows the types of links between CEs and PEs and the VC IDs used in Martini mode.
Which of the following VC ID configurations are correct?

A. VCID1 = 2, VCID2 = 2, VCID3 = 2, VCID4 = 2
B. VCID1 = 1, VCID2 = 1, VCID3 = 2, VCID4 = 2
C. VCID1 = 1, VCID2 = 2, VCID3 = 3, VCID4 = 4
D. VCID1 = 1, VCID2 = 2, VCID3 = 1, VCID4 = 2
正解：A,D

質問 8：
Exhibit:

As shown in the figure, virtual private LAN service (VPLS) is enabled on routers PE 1 and PE 2.CEs are connected to PEs through QinQ and PC A and PC B are connected to the two CEs. The two PCs belong to the same VPN and can communicate with each other properly. Which of the following statements about the communication process when you ping PC B from PC A are true?
A. A packet received by CE 2 from PE 2 has two VLAN tags CE 2 removed the outer tab and forwards the packets to PC B based on the inner tag
B. PE 1 add two MPLS labels to a packet before sending the packet to a router.
C. If the penultimate hop popping (PHP) feature of MPLS is enabled on PEs, a packet received by PE 2 from a P router has two VLAN tags one MPLS label.
D. PE 1 receives packets with a VLAN tag from CE 1 and adds a VLAN tag to these packets.
正解：B,C,D

質問 9：
Which of the following statements about the L2VPN are true?
A. On a L2VPN, routing information of users does not need to be maintained or managed.
B. If the length of a L2VPN packet that arrives at a P node exceeds the maximum transmission unit (MTU) of relevant interfaces of the P node, the packet will be fragmented and then forwarded.
C. When providing the MPLS L2VPN service for enterprise users, the carrier must filter user route advertisements. Otherwise, flapping of user routes may lead to flapping of network routes.
D. When a traditional L2VPN (ATM and FR) is upgraded to an MPLS L2VPN, the network topology does not need to be adjusted.
正解：A,D

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Huawei H31-161 認定試験の出題範囲：

トピック	出題範囲
トピック 1	BRAS user access, IP MAN, IP backbone network, and mobile bearer network architecture MPLS TE features, multicast advanced features
トピック 2	High reliability technologies, QoS technologies Typical MAN and backbone networks of carriers
トピック 3	Advanced features, and applications of each protocol Plan and design network and services
トピック 4	Capability of independently maintaining typical network of carriers Maintain large-scale IP networks
トピック 5	Demonstrate the systematic understanding and good command of the in-depth principles Plan network and technology evolution
トピック 6	MPLS VPN features, SR and EVPN features Network and technology evolution direction

参照：https://enclass.hiclc.com/portal/#/plan/en/19082711-4967-5453-920c-541e82054d27

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