Huawei H31-161 Exam Practice Test Instant Access

Question 1

Which of the following combinations of LDP working modes supports LDP FRR?

ADownstream independent label distribution + ordered label control + free label
retentionB.Downstream on-demand label distribution + independent label control + free label
retention

CDownstream independent label distribution + independent label control + conservative label retention

DDownstream on-demand label distribution + ordered label control + conservative label retention

Answer : A

Question 2

Which statement about primary VPN tunnel binding is false?

AOnly 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.

BPrimary tunnel ensures that data can be transmitted from a VPN t a specific peer device permanently through a dedicate TE tunnel.

CPrimary VPN tunnel binding means to bind a tunnel to a specific VPN. The bound tunnel is exclusive to the VPN.

DThe bound primary tunnel can be selected sequentially.

Answer : D

Question 3

Refer to the exhibit.

As shown in the figure, Border Gateway Protocol (BGP) is used to

advertise VPN routes between PE 1 and PE 2.BGP process 100 is started on PE 1 and BGP process 200 is started on PE 2.OSPF is used between a PE and a CE and between CE 1 and CE 2 within area 1.To avoid routing loops, which of the following route tag configurations is true? (Note: 0Xd0000000=3489660928)

AConfigure the route tag to 3489661028 on PE 1 and leave it blank on PE 2.

BConfigure the route tag to 3489661128 on PE 1 and leave it blank on PE 2.

CConfigure the route tag to 100 on PE 1 and to 200 on PE 2.

DConfigure the route tag to 100 on PE 2 and to 200 on PE 1.

Answer : B

Question 4

Refer to the exhibit.

As shown in the figure, a CE requires access to the Internet, and PE 1 is

connected to the Internet gateway. Configurations on PE 1 are as follows:

PE 1:

nat address-group 0 175.31.1.3 175.31.1.10

ip vpn-instance vrf1route-distinguisher 192.168.1.1:100

vpn-target 100:1 export-extcommunity

vpn-target 100:1 import-extcommunity

acl number 2000

rule 5 permit vpn-instance vrf1

interface Serial0/0/1:0

link-protocol ppp

ip binding vpn-instance vrf1

ip address 150.1.1.1 255.255.0.0

nat outbound acl 2000 address-group 0

interface Pos2/1/0

clock master

link-protocol ppp

ip address 175.31.1.1 255.255.0.0

bgp 100

group ibgp internal

peer ibgp connect-interface LoopBack0peer 192.168.1.2 as-number 100

peer 192.168.1.2 group ibgp

ipv4-family unicast

undo synchronization

peer ibgp enable

peer 192.168.1.2 enable

peer 192.168.1.2 group ibgp

ipv4-family vpnv4

policy vpn-target

peer ibgp enable

peer 192.168.1.2 enable

peer 192.168.1.2 group ibgp

ipv4-family vpn-instance vrf1

default-route imported

import-route direct

import-route static

group nei_vrf1 external

peer nei_vrf1 as-number 65004

peer 150.1.1.2 as-number 65004peer 150.1.1.2 group nei_vrf1

ip route-static vpn-instance vrf1 0.0.0.0 0.0.0.0 175.31.1.2

PE 1 is connected to the Internet gateway through interface 175.31.1.2. CE 1 and CE 2 cannot ping

this interface. Which of the following statements are true?

AA default route must be configured on CE 1 and CE 2.

BA private network route must be configured on the Internet gateway.

CThe public parameter of a static default route must be configured.

DNAT translation must be configured on interface pos2/1/0 instead of interface s0/0/1:0.

Answer : C, D

Question 5

Which of the following statements about the working principle f LDAP FRR are true?

AAfter LDP FRR is enabled, a backup LSP is generated both the primary and backup LSPs are stored in the forwarding table.

BLDP TFRR can be deployed on the ingress node and the intermediate node. The primary and backup LSPas are recorded in the ILM table on the intermediate node and on the FIB table on the ingress node.

CAfter LDP FRR enable, a backup can degenerated for a primary LSP to prevent serious packet loss during fats flapping of the primary LSP.

DMultiple LSPs can be up on the ingress node, that is entries about multiple backup LSPs are generated in the forwarding table according to the priority of the FRR, implementing multi-layer protection.

Answer : C

Question 6

On the IP bearer network, different VPN users (VPN A and VPN B) must access the internet through the same egress. Which of the following schemes can achieve security isolation VPNs and have the best scalability?

AOption A

BOption B

COption C

DOption D

Answer : D

Question 7

What is the SSM group address range the IANA allocates for IPv4?

A232.0.0.0/24

B225.0.0.0/8

C232.0.0.0/8

D225.0.0.0/24

Answer : C

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