H31-161 by Huawei Actual Free Exam Q&As

Question 1

On a BGP/MPLS VPN, a PE and a CE communicate with each other over OSPF. Which command cannot be configured on the PE?

A. domain-id 3 B. vpn-instance-capability simple C. route-tag 3 D. sham-hello

Discussion 0

Correct Answer: B Vote an answer

Question 2

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 bgp vpnv4 all routing-table B. Display ip routing-table vpn-instance vpn_1 C. Display ip routing-table

Discussion 0

Correct Answer: B Vote an answer

Question 3

A. Only the OSPF category-5 route can reach CE 3. B. 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? C. Two (One route is learned based on the IBGP neighbor relationship between PEs, and the other one is the OSPF category-5 route.) D. No route E. 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.)

Discussion 0

Correct Answer: D Vote an answer

Question 4

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

A. The 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). B. In 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. C. The 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. D. In 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.

Discussion 0

Correct Answer: A,B,D Vote an answer

Question 5

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 a receive broadcast packet sent a remote PE, it forwards the packet only to the AC interface instead of other PEs. 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 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

Discussion 0

Correct Answer: A,B,C Vote an answer

Question 6

As shown in the figure. CE 1 and CE 3 belong to VPN-A, and CE 2 CE 2 4 belong to VPN-B VPN-target 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:
On the backbone network VPNs are not connected to a CE, VPN instance need to be configured on the PE, and an interface on the PE for connecting to the CE must be bounded 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.

How to enable CE 1 to learn routes from AS 64430?

A. Import IS-IS 100 routes in IS-IS process 100 B. Import BGP routes in IS-IS process 100 C. Import IS-IS 200 routes in IS-IS process 100 D. Import BGP routes in IS-IS process 200

Discussion 0

Correct Answer: B Vote an answer

Question 7

As shown in the figure, the mapping between links and administrative groups is as follows:
0x0F for A -> B; 0xFF for B -> C; 0xF0 for A -> C; 0xC3 for B -> D; and 0x3C for C -> D.
It is expected to configure a tunnel (affinity: 0x0C; mask: 0xFF) on node A to connect to RTD. Which path will be created along with the tunnel?

A. A -> C -> B -> D B. A -> B -> D C. A -> B -> C -> D D. No path will be created. E. A -> C -> D

Discussion 0

Correct Answer: C Vote an answer

Question 8

Multicast configurations in PIM-SM are as follows:
#
multicast routing-enable
#
acl number 2000
rule 5 permit source 239.0.0.0 0.0.0.255
rule 10 deny
#
acl number 2999
rule 5 permit source 233.32.32.0 0.0.0.255
rule 10 deny#
interface Ethernet10/2/0
ip address 10.1.1.1 255.255.255.0
pim sm
#
interface LoopBack0
ip address 1.1.1.1 255.255.255.255
pim sm
#
interface LoopBack2
ip address 2.2.2.2 255.255.255.255
pim sm
#
interface LoopBack3
ip address 3.3.3.3 255.255.255.255
pim sm
#
pim
c-bsr Ethernet10/2/0
c-rp Ethernet10/2/0 priority 192
c-rp LoopBack0 group-policy 2000
c-rp LoopBack3
static-rp 2.2.2.2 2999 preferred
#
Based on the preceding configurations, which of the following statements about the mapping relationships between the specified group and the RP are true?

A. The group address is 226.32.32.32 and the mapped RP address is 3.3.3.3. B. The group address is 233.32.32.32 and the mapped RP address is 2.2.2.2. C. The group address is 225.31.31.31 and the mapped RP address is 10.1.1.1. D. The group address is 239.0.0.32 and the mapped RP address is 1.1.1.1.

Discussion 0

Correct Answer: A,B Vote an answer

Question 9

A. Only two EXP values may be contained, and the values are uncertain. B. At least three EXP values may be contained, and the values are uncertain. C. The EXP values must be 0, 1, and 4. D. Only one EXP value may be contained, and the value is uncertain. E. Which statement about EXP values corresponding to these three services is true?

Discussion 0

Correct Answer: B Vote an answer

Question 10

An Ethernet cable connects RTA to RTB through Ethernet 0/0.the OSPF neighbor relationship can be established without enabling the OSPF authentication function is enabled, Which of the following statements about the OSPF relationship between RTA and RTB are true?

A. Simple authentication is used between RTA and RTB B. The OSPF neighbor relationship cannot be established between RTA and RTB due to failure of area authentication C. The OSPF neighbor relationship can be established between RTA and RTB D. MD5 authentication is used between RTA and RTB

Discussion 0

Correct Answer: C,D Vote an answer

Question 11

Which statement about the Ethernet clock synchronization technology used in actual solutions is true?

A. The NTP technology requires the intermediate node to support transparent clock transmission. B. The CES packet recovery technology requires the intermediate node to support transparent clock transmission. C. The IEEE1588 technology requires the intermediate node to support transparent clock transmission. D. The 802.1as technology requires the intermediate node to support transparent clock transmission.

Discussion 0

Correct Answer: D Vote an answer

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