[Q108-Q128] H31-161 100% Guarantee Download H31-161 Exam PDF Q&A [Sep 26, 2022]

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H31-161 100% Guarantee Download H31-161 Exam PDF Q&A [Sep 26, 2022]

Get H31-161 Actual Free Exam Q&As to Prepare for Your Huawei Certification

Huawei H31-161 Exam Syllabus Topics:

Topic	Details
Topic 1	Knowledge of carrier’s network architecture and services Advanced features of routing protocols
Topic 2	BRAS user access, IP MAN, IP backbone network, and mobile bearer network architecture MPLS TE features, multicast advanced features
Topic 3	Capability of independently maintaining typical network of carriers Maintain large-scale IP networks

QUESTION 108
On the MPLS Layer 3 VPN, PE security is key to the safety of the entire network. Which of the following security measures can be deployed on PEs?

PE-CE route protocol authentication

VRF route capacity limitation

uRPF

Filter all CE packets that use the VRF interface address as the destination address based on the ACL rule.

QUESTION 109
As shown in the figure , CE and CE 2 belong to VPN A, CE 3 and CE 4 belong to VPN B, VPN A and VPN B
share the public network tunnels between border PE 1 and PE 2, and LDP tunnels are configured between PE
1 and PE 2. To isolate resources for VPN service data from PE 2 to PE 1, a unidirectional TE tunnel is
configured t forward data from PE1. The QoS policy propagation though the border gateway protocol (QPPB)
feature is configured on PE 2, and a QoS policy is defined when VPNs are bound to tunnel interfaces.

Which of the following statements about the configurations on PE 2 are true?

The mpls te commit command must be configured on the Tunnel1/0/0 interface,

The mpls te cspf command must be configured in the global MPLS view.

The maximum reserved bandwidth must not exceed the bandwidth of the tunnels.

The maximum reserved bandwidth must not exceed the bandwidth of the physical links.

The mpls te commit command must be configured on the Post/O/0 interface.

QUESTION 110
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?

PC A can ping both PC B and PC C.

PC A can ping neither PC B nor PC C.

PC A can ping PC B instead of PC C.

PC A can ping PC C instead of PC B.

QUESTION 111
Which of the following statements about the VPLS packet forwarding are true?

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.

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

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.

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

QUESTION 112
Which statement about the Ethernet clock synchronization technology used m actual solutions is true?

The IEEE 1588 technology requites the intermediate node to support transparent clock transmission

The CES packet recovery technology requires the intermediate node lo support transparent clock transmission

The NTP technology requires the intermediate node to support transparent clock transmission

The 802 1aS technology requires the intermediate node to support transparent clock transmission

QUESTION 113
The Huawei router is the hop RD where the SSM mapping function is enabled at the interface. Some IGMPv2 hosts expect to receive (1.0.01,232.1.0.1) (1.0.0.1232.1.0.2), and (2.0.0,232.1.3.2) dat a. How can you satisfy the preceding requirement with the least configurations?

ssm-mapping 232.1.3.2 16.2.0.0.1

ssm mapping 232.1.3.1.24.2.0.0.1

ssm-mapping 232. 1 308 2 00.1

ssm-mapping 232 1.0. 1 32. 1. 0. 0. 1

ssm-mapping 232. 1.0. 2. 32. 1. 0. 0. 1

ssm-mapping 232. 1. 0. 0. 24. 1. 0. 0. 1

QUESTION 114
Exhibit.

As shown in the figure, Super VLAN is enabled on SWA (a LAN switch). The Super VLAN configuration is
as follows:

Which of the following specifics the time order in which the preceding debugginginformationis generated?

3–4–1–2

1–2–3–4

1–4–2–3

3–2–1–4

QUESTION 115
Which statement about the tunnel policy configuration is false?(A)

The tunnel policy is configured in the system view. You can run the tunnel-policy policy-name command to create tunnel policies and enter the tunnel policy view. One VPN instance supports multiple tunnel policies, and multiple VPN instances can share a tunnel policy.

You can run tunnel select-seq { gre | lsp | cr-lsp } * load-balance-number load-balance-number in the tunnel policy view to configure the priorities of tunnels and the number of tunnels among which load is balanced.

You can run the tnl-policy policy-name command in the VPN instance view to apply tunnel policies to VPN instances. If the required tunnel policy does not exist, the configuration is saved but does not take effect. If you create this tunnel policy in the system view later, the saved configuration will take effect.

If a VPN instance does not have a tunnel policy, an LSP is used and the number of tunnels configured for load balancing is set to 1

QUESTION 116

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?

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.)

Two (One route is learned based on the IBGP neighbor relationship between PEs, and the other one is the OSPF category-5 route.)

No route

Only the OSPF category-5 route can reach CE 3.

QUESTION 117
Exhibit:

As shown in the figure, RTA belongs to AS 100 and has an EBGP neighbor relationship with RTC, RTD, and TTB is an IBGP neighbor of RTC, RTD, and RTE, and the four router all belong to AS 200.
(Note: The attributed not involved In the question use the default values)
1. Import route 1.1.1/32 from RTA and advertise this route to RTB by way of RTC, RTD, and RTE, respectively (suppose the three routers between is IGP, EGP, and INCOMPL:ETE, respectively. Which route will RTB prefer?
2. Suppose the preceding policy is retained. Apply inbound routing policies on RTC, RTD, and RTE so that the values of the MED attribute of route 1.1.1.32 learned by RTB are 40, and 20 respectively. Which route will RTB prefer?
3. Suppose the preceding policy is retained. Apply an inbound routing policy on RTB so that the values of the AS_ PATH attribute of route 1.1.1.1/32 Learned from RTC, RTD, and RTE are 10 20 30,and 10 20, respectively. Which route will RTB prefer?
4. Suppose the preceding policy is retained. Apply an inbound routing policy on RTB so that the values of the local-preference attribute of route 1.1.1.1.32 learned from RTC and RTE are 30 and 120 , respectively. Which route will RTB prefer.
5. Suppose the preceding policy is retained. Apply inbound policies on RTC. RTD and RTE so that the values of the preferred-value attribute of route 1.1.1.132 are 50.40 and 30 respectively. Which route will RTB prefer?

RTC., RTC, RTE, RTC, RTE

RTC, RTD, RTD, RTE. RTE

RTC, RTC, RTD, RTC, RTE

RTC, RTC, RTD, RTE, RTE

QUESTION 118
The VRRP is enabled on the firewall dual-system Intranet users use NAT to access extranet FTP services Which of the following statements are true?

The NAT cannot be used in easy IP mode.

VRIDs of the VRRP must be bound with the NAT during NAT configuration in the outbound direction between domain.

VRIDs of the VRRP do not need to be bound with the NAI during NAI configuration in the outbound direction between domains.

The FTP Nat Alg function must be enabled on the firewall

QUESTION 119
When a PW works in RAW mode, which of the following statements are true?

When the VSI uses Ethernet for encapsulation, the VLAN tag in a packet sent from a CE to its nearby PE must be removed when the packet reaches a VPLS domain, and whether the packet needs to be encapsulated at the egress of the VPLS domain must be determined based on the encapsulation mode used on the peer AC.

When the VSI uses Ethernet for encapsulation, the VLAN tag in a packet sent from a CE to its nearby PE must be reserved when the packet reaches a VPLS domain, and whether the packet needs to be encapsulated at the egress of the VPLS domain must be determined based on the encapsulation mode used on the peer AC.

When the VSI uses Ethernet for encapsulation, a packet sent from a CE to its nearby PE must be added with a VLAN tag when the packet reaches a VPLS domain, and whether the packet needs to be encapsulated at the egress of the VPLS domain must be determined based on the encapsulation mode used on the peer AC.

When the VSI uses Ethernet for encapsulation, a packet sent from a CE to its nearby PE does not need to be added with a VLAN tag when the packet reaches a VPLS domain, and whether the packet needs to be encapsulated at the egress of the VPLS domain must be determined based on the encapsulation mode used on the peer AC.

QUESTION 120
Which statements about the edge access layer is true?

Using the packet technology it provides a comprehensive transport platform that boasts high reliability,
quality of service (QoS) assurance, and large capacity.

It implement call control. With the software technology as the core, it completes basic real-time call
control and connection control.

It connections users to the network by providing various access means, and converts the format of
information can be transmitted on the network.

It process additional value-added service and operation support for established callas.

QUESTION 121
On the typical access network of a bearer network, a core network device connects to two upstream CEs. CEs connect to PEs in a square shape. This access network must bear voice and signaling services. A CE must be configured with two VPNs to separate the voice and signaling services and ensure high security and QoS. The signaling service works in active/standby mode, and the voice service works in load sharing mode. The VRRP must be enabled between the CEs to terminate the signaling flow. If the network robustness is ensured and the network architecture is rational, which of the following statements about the topological structure are true?

The voice service must be carried by GE links and the signaling service must be carried by FE links.

Instead of POS links, GE links are recommended between CEs and PEs.

The total link bandwidth between CEs cannot be less than that between CEs and PEs.

GE and FE links need to be used as the Eth-trunk between CEs to improve reliability.

QUESTION 122
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?

Import IS-IS 200 routes in IS-IS process 100

Import IS-IS 100 routes in IS-IS process 100

Import BGP routes in IS-IS process 100

Import BGP routes in IS-IS process 200

QUESTION 123
When the RSVP LSP FRR protection is enables, which of the following statements about the original RSVP LSP are true?

The point of local repair (PLR) and the merge point (MP) can perceive the application of FRR but other nodes on the original RSVP LSP

The RESV message is sent by the MP to an upstream node through a bypass LSP after modified.

The PATH message is sent by the PLR to the MP through a bypass LSP after modified.

The MP sends the ResvTear message to the upstream node of the original RSVP LSP.

QUESTION 124
Exhibit.

As shown in the figure, OSPF process 100 runs on both PEs and CEs, and VPN routers are transmitted
between PE 1 and PE 2 through PGB CE 1 enables interface address 43.1.1.0/24 in area 0.A route to
43.1.10/24. However, does not exist in the routing table of CE 2. What are the possiblecauses?

The VPN route to 43.1.1.0/24 does not exist in the routing table of PE 2.

The LSDB of PE 1 does not have the type 1 LSA generated by CE 1.

The LSDB of PE 12 does not have the type 1 LSA generated by CE 1.

The public network rout to 43.1.1.0/24 does not exist in the routing table of PE2
.

QUESTION 125
acl number 2000
rule 15 permit source 225.0.0.0 0.0.0.255
#
interface Ethernet6/1/1
ip address 40.1.1.4 255.255.255.0
igmp version 3
igmp group-policy 2000
igmp enable
pim sm
#
The preceding are partial router configurations. Which of the following behaviors does Ethernet
6/1/1 perform after receiving Internet Group Management Protocol Version 2 (IGMPv2) Report messages for multicast groups 225.0.0.1 and 225.0.1.1?

Create a record for group 225.0.0.1.

Create a record for group 225.0.1.1.

Do not create a record for group 225.0.1.1.

Do not create a record for group 225.0.0.1.

QUESTION 126
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?

Option A

Option B

Option C

Option D

QUESTION 127
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?

VoIP, IPTV, HSI

HSI, VoIP, IPTV

IPTV, VoIP, HSI

HSI, IPTV, VoIP

QUESTION 128
As shown in the figure, DUT stands for the device under test and RTA is used to support the test. Which combination of the following configurations is mandatory for fast convergence?
1. BFD
2. Minimum LSP refreshing interval
3. Most sensitive SPF timer
4. Minimum Hello packet sending interval
5. Minimum LSP sending interval
6. Longest computing time of SPF slices
7. Minimum LSP retransmission interval
8. Minimum LSP generation time
9. Flash-flood
10. GR function
11. Setting cost-style to wide

3, 5, 6

3, 5, 6, 8, 9C.1, 3, 5, 6, 9

1, 2, 3, 5, 7, 8, 9