Huawei H31-161 Exam Practice Test Instant Access

Question 1

Winch functions docs the beater network NMS mainly provide?

AMonitoring network traffic

BPacket delay

CMonitoring device load(CPU and Memory)

DSwitchover tune of a device's active/standby system

Answer : C

Question 2

Refer to the exhibit.

As shown in the figure, CE 1 and CE 3 belong to VPN-A, and CE 2 and

CE 4 belong to VPN-B. VPN-target of VPN-A is 111:1, and that of VPN-B is 222:2.Users on different VPNs are not allowed to access each other. Configuration principles are as follows:

1. On the backbone network, if a PE is connected to a CE, VPN instances need to be configured on

the PE, and an interface on the PE for connecting to the CE must be bound to a VPN instance. After

binding an interface to a VPN instance, you must configure the IP address of the interface.Between

PEs, IS-IS is configured for PE interworking, MPLS basic capabilities and MPLS LDP are configured for MPLS LSP establishment, and MP-IBGP is configured for VPN route exchange. LDP is short for Label Distribution Protocol, and IBGP is short for Interior Border Gateway Protocol.

2. A CE exchanges VPN routes with a PE over External Border Gateway Protocol (EBGP).

Which of the following configurations of PE 1 is incorrect? (A)

(1) Configure Interior Gateway Protocol (IGP) on the IS-IS+MPLS backbone network to achieve the interworking between PEs and P routers.

# Configure PE 1 as follows:

[PE 1] isis 100

[PE 1-isis-100] is-level level-2

[PE 1-isis-100] network-entity 10.1234.1234.1234.00

[PE 1] interface loopback1

[PE 1-LoopBack1] ip address 1.1.1.9 32

[PE 1-LoopBack1] isis enable

[PE 1-LoopBack1] quit

[PE 1] interface pos3/0/0

[PE 1-Pos3/0/0] ip address 172.1.1.1 24

[PE 1-Pos3/0/0] isis enable

[PE 1-Pos3/0/0] quit

(2) Configure MPLS basic capabilities and MPLS LDP for setting up LDP LSPs on the IS-IS+MPLS

backbone network.

# Configure PE 1 as follows:

[PE 1] mpls lsr-id 1.1.1.9

[PE 1] mpls

[PE 1-mpls] lsp-trigger all

[PE 1-mpls] quit

[PE 1] mpls ldp

[PE 1-mpls-ldp] quit

[PE 1] interface pos 3/0/0

[PE 1-Pos3/0/0] mpls

[PE 1-Pos3/0/0] mpls ldp

[PE 1-Pos3/0/0] quit(3) Configure VPN instances on a PE for connecting CEs to the PE.

# Configure PE 1 as follows:

[PE 1] ip vpn-instance vpna

[PE 1-vpn-instance-vpna] route-distinguisher 100:1

[PE 1-vpn-instance-vpna] vpn-target 111:1 both

[PE 1-vpn-instance-vpna] quit

[PE 1] ip vpn-instance vpnb

[PE 1-vpn-instance-vpnb] route-distinguisher 100:2

[PE 1-vpn-instance-vpnb] vpn-target 222:2 both

[PE 1-vpn-instance-vpnb] quit

[PE 1] interface gigabitethernet 1/0/0

[PE 1-GigabitEthernet1/0/0] ip binding vpn-instance vpna

[PE 1-GigabitEthernet1/0/0] ip address 10.1.1.2 24

[PE 1-GigabitEthernet1/0/0] quit

[PE 1] interface gigabitethernet 2/0/0

[PE 1-GigabitEthernet2/0/0] ip binding vpn-instance vpnb

[PE 1-GigabitEthernet2/0/0] ip address 10.2.1.2 24

[PE 1-GigabitEthernet2/0/0] quit

(4) Set up an EBGP peer relationship between a PE and a CE and import VPN routes.

# Configure PE 1 as follows:

[PE 1] bgp 100

[PE 1-bgp] ipv4-family vpn-instance vpna

[PE 1-bgp-vpna] peer 10.1.1.1 as-number 65410

[PE 1-bgp-vpna] import-route direct

[PE 1-bgp-vpna] quit

[PE 1-bgp] ipv4-family vpn-instance vpnb

[PE 1-bgp-vpnb] peer 10.2.1.1 as-number 65420

[PE 1-bgp-vpnb] import-route direct

[PE 1-bgp-vpnb] quit

(5) Set up an MP-IBGP peer relationship between PEs.

# Configure PE 1 as follows:

[PE 1] bgp 100

[PE 1-bgp] peer 3.3.3.9 as-number 100

[PE 1-bgp] peer 3.3.3.9 connect-interface loopback 1

[PE 1-bgp] ipv4-family vpnv4

[PE 1-bgp-af-vpnv4] peer 3.3.3.9 enable

[PE 1-bgp-af-vpnv4] quit

AImport BGP routes in IS-IS process 100

BImport BGP routes in IS-IS process 200

CImport IS-IS 200 routes in IS-IS process 100

DImport IS-IS 100 routes in IS-IS process 200c

Answer : B

Question 3

Which of the following statements about the Martini VPLS are true?

AWhen LDP is used to transmit signaling, LDP TLVs carry the VPLS information.

BLabels are allocated for PWs in DU mode when they are established.

CLabels are allocated for PWs in DoD mode when they are established.

DLabels are retained using the liberal label retention method.

EA VC must be established using remote LDP.

Answer : B, D

Question 4

Which statement describes the delay requirement of the voice service for the IP bearer network?

ABearer network delay=50 ms, allowed maximum delay = 100 ms

BBearer network delay=150 ms, allowed maximum delay = 200 ms

CBearer network delay=10s, allowed maximum delay = 20s

DNo strict requirement.

Answer : A

Question 5

Exhibit:

As shown in the figure, RTA connects to RTB and RTC A TE tunnel is configure on RTA to reach RTC. The TE tunnel cannot be successfully established. However, CSPF-based calculation is successful and RTA does not receives any PathErro messages. What are possible causes?

AAn interface address on RTP is the same as the address of interface RTA-1.

BRSVP-TE is not configured at interface RTB-2.

CDifferent authentication keys are configured on interface RTB-2 and RTC-1.

DThe reserved bandwidth is insufficient at interface RTB-2

Answer : D

Question 6

Refer to the exhibit

As shown in the figure, basic BGP/MPLS IP VPN configuration has been completed on routers. Which of the following configurations is incorrect for advertising default

routes in VPN instances on the SPE?

Note: All configurations are performed on the SPE.

ARun the peer 2.2.2.2 enable command in the BGP-VPNv4 subsequent address family view to enable the peer to exchange BGP-VPNv4 routing information.

BRun the peer 2.2.2.2 upe command in the BGP-VPNv4 subsequent address family view to
designate the peer as a UPE of the SPE.

CRun the peer default-originate vpn-instance command in the BGP-VPNv4 subsequent address family view.

DConfigure the default-route imported command in the BGP-VPN instance view without importing default IGP routes, and then configure the peer default-originate vpn-instance command in the BGP-VPNv4 address family view.

EConfigure the peer default-originate vpn-instance command in the BGP-VPNv4 address family view, and then configure the default-route imported command in the BGP-VPN instance view.

Answer : D

Question 7

CR-LSP and GRE are selected as tunneling policies. CR-LSP has a higher priority and a maximum of three tunnels can be configured for load balancing. Which statement about tunnel selection is false?

AThe CR-LSP tunnel in the Up state is preferred. If less than three CR-LSP tunnels are in the Up state, GRE tunnels in the Up state are also selected until there are three available tunnels.

BOne GRE tunnel is selected. If a new CR-LSP tunnel is added or a CR-LSP tunnel becomes Up, the selected GRE tunnel will be replaced with an active CR-LSP.

CIf the number of tunnels used for load balancing is less than the configured value and CR-LSP or GRE tunnels become Up, these tunnels will also be configured for load balancing.

DWhen three CR-LSP tunnels are used for load balancing, the three CR-LSP tunnels must be in different

Answer : D

Huawei HCIE Carrier IP (Written) V1.0 H31-161 Exam Practice Test