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H31-161 Real Exam Question Answers Updated [Apr 30, 2022]
Huawei H31-161 Exam Syllabus Topics:
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NEW QUESTION 106
Which of the following combinations of LDP working modes supports LDP FRR?
- A. Downstream independent label distribution + independent label control + conservative label retention
- B. Downstream independent label distribution + ordered label control + free label retentionB.Downstream on-demand label distribution + independent label control + free label retention
- C. Downstream on-demand label distribution + ordered label control + conservative label retention
Answer: B
NEW QUESTION 107
When the RSVP LSP FRR protection is enables, which of the following statements about the original RSVP
LSP are true?
- A. The RESV message is sent by the MP to an upstream node through a bypass LSP after modified.
- B. The MP sends the ResvTear message to the upstream node of the original RSVP LSP.
- C. The PATH message is sent by the PLR to the MP through a bypass LSP after modified.
- D. 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
Answer: A
NEW QUESTION 108
RTA is a leaf router that directly connects to host A through interface GigabiteEthernet 1/0/0. The interface is
configured as follows:
Hos a sends a IGMPv2 Report message to group 2321.2.3. Which entry can be displayed by the displayed by
the igmp ssm-mapping group command?
- A. (10.10.1.1, 232.1.1.) and (10.10.1., 2321.2.3)
- B. (10.10.1.1, 232.1.2.2)
- C. (10.10.1.1, 232.1.1.1)
Answer: B
NEW QUESTION 109
- A. Only one EXP value may be contained, and the value is uncertain.
- B. Only two EXP values may be contained, and the values are uncertain.
- C. The EXP values must be 0, 1, and 4.
- D. At least three EXP values may be contained, and the values are uncertain.
- E. Which statement about EXP values corresponding to these three services is true?
Answer: D
NEW QUESTION 110
Winch functions docs the beater network NMS mainly provide?
- A. Monitoring device load(CPU and Memory)
- B. Packet delay
- C. Monitoring network traffic
- D. Switchover tune of a device's active/standby system
Answer: A
NEW QUESTION 111
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 possible causes?
- A. The public network rout to 43.1.1.0/24 does not exist in the routing table of PE2
. - B. The LSDB of PE 1 does not have the type 1 LSA generated by CE 1.
- C. The LSDB of PE 12 does not have the type 1 LSA generated by CE 1.
- D. The VPN route to 43.1.1.0/24 does not exist in the routing table of PE 2.
Answer: A,B
NEW QUESTION 112
Which of the following can be implemented in an IP backbone network?
- A. BGP
- B. ISIS
- C. MPLS
- D. RIP
Answer: A,B,C
NEW QUESTION 113
Exhibit:
As shown in the figure, one enterprise has VPN A, the other has VPN B, and the two VPNs each have two CEs. The following requirements needs to be met.
VPNA-CA 1 can interwork with VPNA-CE 2
2>VPNA-CE 1 can interwork with VPNA-CE 2.
The figure shows the types of links between CEs and PEs and the IDs used in Martini mode. Which the following VC ID configurations are correct?
- A. VCID1 =2, VCID2 = 2, VCID3 =2, VCID4 +2
- B. VCID1 =1, VCID2 = 2, VCID3 =3, VCID4 +4
- C. VCID1 =1, VCID2 = 2, VCID3 =1, VCID4 +2
- D. VCID1 =1, VCID2 = 1, VCID3 =2, VCID4 +2
Answer: B
NEW QUESTION 114
BFD for RSVP is a mechanism that uses BFD to check the connectivity of RSVP neighbors. As shown in the figure, TE FRR node protection is deployed to protect a node, the blue path is the primary LSP (RTA -> RTB -> RTC -> RTD -> RTE) and the red one is the bypass LSP (RTB -> RTF -> RTD). Which of the following statements about BFD for RSVP are true?
- A. BFD for RSVP needs to be enabled only on RTB if you expect to set up a BFD for RSVP session on RTB to check the connectivity between RTB and RTC.
- B. Only RSVP HELLO needs to be enabled if RSVP GR instead of TE FRR is deployed on a network.
- C. TE FRR will be triggered only when the link between RTB (acting as the PLR) and RTC (the node under protection) is faulty or RTC is faulty but will not be triggered when the link between RTC and RTD (acting as the MP) is faulty. This problem can be solved by establishing a BFD session between RTB and RTD. In this case, faults may be reported falsely or be missed.
- D. The BFD session triggered by RSVP is for the exclusive use of RSVP.
Answer: C
NEW QUESTION 115
RTA is a leaf router that directly connects to host A through interface GigabiteEthernet 1/0/0. The interface is configured as follows:
Hos a sends a IGMPv2 Report message to group 2321.2.3. Which entry can be displayed by the displayed by the igmp ssm-mapping group command?
- A. (10.10.1.1, 232.1.1.) and (10.10.1., 2321.2.3)
- B. (10.10.1.1, 232.1.2.2)
- C. (10.10.1.1, 232.1.1.1)
Answer: B
NEW QUESTION 116
Exhibit:
As shown in the figure, complex traffic classification is configured for RTA's upstream GigabitEthernet 1/0/0. The QoS is configured as follows:
A tester sends TCP packets from GE 1/1 to GE 1/2 at 40 1.2.2 IF DSCP values of packets GE receives are not 46, what are the possible causes?
- A. The qos phb command is enabled on RTA's GigabitEthernet1/0/0.
- B. The default mapping from the EF value to the DDCP value is modified
- C. STC is disabled at RTA's GigabitEthernet 1/0/0.
- D. DSCP values of sent packets are not 10.
Answer: D
NEW QUESTION 117
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?
- A. VRIDs of the VRRP must be bound with the NAT during NAT configuration in the outbound direction between domain.
- B. The FTP Nat Alg function must be enabled on the firewall
- C. The NAT cannot be used in easy IP mode.
- D. VRIDs of the VRRP do not need to be bound with the NAI during NAI configuration in the outbound direction between domains.
Answer: A,B,C
NEW QUESTION 118
<Quidway>display igmp group
IGMP interface group report information of VPN-Instance: public net
Ethernet6/1/1(40.1.1.1):
Total 1 IGMP Group reported
Group: 232.0.0.1
Uptime: 00:00:22
Expires: off
Last reporter: 40.1.1.3
Last-member-query-counter: 0
Last-member-query-timer-expiry: off
Group mode: include
Source list:
Source: 20.1.1.56
Uptime: 00:00:22
Expires: 00:05:08
Last-member-query-counter: 3
Last-member-query-timer-expiry: 00:00:01
Source: 20.1.1.57
Uptime: 00:00:22
Expires: 00:00:17
Last-member-query-counter: 3
Last-member-query-timer-expiry: 00:00:01
The preceding information shows the entry states in the IGMP interface table on Ethernet 6/1/1.
Which statement is true when IGMP sends source/group query messages?
- A. IGMP sends one message in which the multicast sources are 20.1.1.56 and 20.1.1.57 and the S flag is not configured.
- B. IGMP sends two messages. In one message, the multicast source is 20.1.1.56 and the S flag is set to 1. In the other message, the multicast source is 20.1.1.57 and the S flag is not configured.
- C. IGMP sends two messages. In one message, the multicast source is 20.1.1.56 and the S flag is not configured. In the other message, the multicast source is 20.1.1.57 and the S flag is set to 1
- D. IGMP sends one message in which the multicast sources are 20.1.1.56 and 20.1.1.57 and the S flag is set to 1.
Answer: B
NEW QUESTION 119
On the IP bearer network, media and signaling packets must first be guaranteed by PQ scheduling.
The IP priority of protocol packets on the routers is 6 or 7, and these packets must also first be guaranteed. Other data packets are placed in the BE queue for scheduling. However, devices cannot be connected in inband Telnet mode if network congestion occurs. Which of the following statements are true?
- A. Telnet packets are protocol packets and join high-priority queues by default.
- B. The UDP port number for Telnet packets is 23.
- C. Telnet packets are discarded during network congestion because the IP priority of Telnet packets is 0 and is scheduled in the BE queue.
- D. You can improve the priority of Telnet packets and add them to the PQ queue to ensure them during network congestion.
Answer: C,D
NEW QUESTION 120
Exhibit:
As shown in the figure, external route 1.1.1.0/24 is imported to RTA that is located in the NSSA area RTD is a backbone area router. RTB and RTC are both area border router (ABRs). OSPF configuration are as follows.
Which statement is true?
- A. RTD receive an external LSAs whose LS_ID is 1.1.1.0 and advRouter is 3.3.3.3.
- B. RTD receive an external LSAs whose LS_ID is 1.1.10/24 based on category 7 LSAs sent by RTA
- C. RTD receive an external LSAs whose LS_ID is 1.1.1.0 and advRouter is 2.2.2.2.
- D. RTD receive two external LSAs whose LS_ID is 1.1.1.0
Answer: A
NEW QUESTION 121
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