Huawei H31-161 Exam Questions Instant Access

Question 1

RTA is an edge router of the MPLS backbone network. It provides the access service for users under Layer 2 switches and differentiates users by subinterface. User A accesses VLAN 100 and has subscribed to the HSI, VoIP, and IPTV services. According to 802.1p priorities, the value 0 indicates the HSI service, 1 indicates the VoIP service, and 4 indicates the IPTV service. The DiffServ model is deployed in E-LSP mode on the MPLS network, and the STC is configured for subinterfaces on the access side of RTA (the qos phb disable command is not configured). Outgoing traffic on the G1/0/0.1 subinterface involves the HSI, VoIP, and IPTV services on the access side of RT

AWhich statement about EXP values corresponding to these three services is true?

AOnly one EXP value may be contained, and the value is uncertain.

BOnly two EXP values may be contained, and the values are uncertain.

CAt least three EXP values may be contained, and the values are uncertain.

DThe EXP values must be 0, 1, and 4.

Answer : C

Question 2

On the IP bearer network, which of the following methods can be used to manage devices on the backbone network and switches on the signaling VPN?

AConstruct an outband NM network to manage all devices.

BLeak public and private network routes to manage devices on the public and private networks.

CEstablish two physical or logical links with the PE to manage devices on the public and private networks. One link belongs to the public network and the other belongs to the private network.

DEstablish a physical or logical link with the PE and mount MCEs to the PE to manage devices on the public and private networks.

Answer : A, B, C

Question 3

Exhibit:

RTA is an edge router of the MPLS backbone network. It provides the access services for users under Layer 2 switches and different users by subinterface . User A access VLAN 12 and has subscribed to the His, VoIP, and IPTV services. According to 802 1p priorities, the value indicates the His service, 1 indicates the VoIp service, and 4 indicates the IPTV service. RTA is configured on he access side as follows.

What is the descending order of service priorities?

AVoIP, IPTV, HSI

BHSI, VoIP, IPTV

CIPTV, VoIP, HSI

DHSI, IPTV, VoIP

Answer : D

Question 4

interface Ethernet6/1/1

ip address 40.1.1.4 255.255.255.0

igmp prompt-leaveigmp enable

pim sm

IGMP interface group report information of VPN-Instance: public net

Ethernet6/1/1(40.1.1.4):

Total 1 IGMP Group reported

Group: 224.1.2.3

Uptime: 00:00:32

Expires: 00:04:38

Last reporter: 30.1.1.30

Last-member-query-counter: 0

Last-member-query-timer-expiry: off

The preceding information shows the configurations of Ethernet 6/1/1 and entries created based on received IGMPv2 Report messages. Which action does Ethernet 6/1/1 perform after receiving Leave messages for group 224.1.2.3?

ASends group-specified query messages for group 224.1.2.3.

BDeletes the record of group 224.1.2.3.

CBoth A and B are correct.

DNeither A nor B is correct.

Answer : B

Question 5

Which statement about the MPLS LSP Ping is true?

AThe LSP Ping Echo request must contain the downstream mapping TLV

BA unique Sender's Handle is generated during each LSP Ping operation

CA unique sequence number is generated during each LSP Ping operation

DThe LSP Ping Echo request may contain the FEC stack TLV

Answer : B

Question 6

Which of the following statements about the MAC address learning in VPLS are true? (ACD)

AThe PE learns the MAC address of a directly connected CE through the attachment circuit (AC) and learns the MAC address of a remote CE through the pseudo wire (PW).

BThe PE learns the MAC address of a directly connected CE through the PW and learns the MAC address of a remote CE through the AC.

CIn qualified mode, the PE learns MAC addresses on a per-VLAN basis in each virtual switch instance (VSI). Each user VLAN has its own broadcast domain and independent MAC address space.

DIn unqualified mode, the PE learns MAC addresses on a per-VSI basis and all user VLANs share a broadcast domain and a MAC address space.

Answer : A, C, D

Question 7

As shown in the figure, PE 1 sets up an MP-IBGP neighbor relationship

with PE 2 and they communicate over MPLS LDP. A CE communicates with a PE over EBGP.Add two entries to the routing table of the VRF on PE 1:

VRF1 RD 100:1, IRT 1:1, ERT 2:2VRF2 RD 100:2, IRT 1:1, 2:2, ERT 2:2, 3:3

Add two entries to the routing table of the VRF on PE 2:

VRF1 RD 100:1, IRT 1:1, ERT 2:2

VRF2 RD 100:2, IRT 2:2, ERT 1:1

Import a valid static route 1.1.1.1/32 on CE 1. Suppose CE 2, CE 3, and CE 4 do not have route 1.1.1.1/32 in the local routing table. Which of the following routers have route 1.1.1.1/32 in the unicast routing table?

APE 1

BCE 2

CCE 3

DCE 4

Answer : B, D

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