Huawei H31-161 Online Practice Questions and Exam Preparation

Huawei H31-161 Online Questions & Answers

• Question 41:

  Which of the following methods can be used to ensure loop-free and reachable Martini VPLS links?

  A. Split horizon
  B. Poison reverse
  C. Spanning tree algorithm
  D. Full-meshed PEs
  A. Split horizon
  D. Full-meshed PEs

• Question 42:

  Which of the following reserved IP multicast addresses is the address of all PIM routers?

  A. 239.0.0.2
  B. 224 0 0.13
  C. 224.0.0.2
  D. 224 0 0 4
  B. 224 0 0.13

• Question 43:

  In PIM DM, which of the following statements about state-refresh message processing are true?

  A. State-refresh messages are generated only on the DRs that directly connect to multicast sources.
  B. Only state-refresh messages received by the RPF interface may be forwarded.
  C. If an interface with the (S, G) entry is an assert loser, state-refresh messages are not forwarded to the interface.
  D. If an interface with the (S, G) entry is in the prune state, state-refresh messages are not forwarded to the interface.
  E. State-refresh messages carry the (S, G) assert and prune status of downstream interfaces.
  B. Only state-refresh messages received by the RPF interface may be forwarded.
  C. If an interface with the (S, G) entry is an assert loser, state-refresh messages are not forwarded to the interface.
  E. State-refresh messages carry the (S, G) assert and prune status of downstream interfaces.

• Question 44:

  As shown in the figure, the PHP function is enabled on all routers by default and an MPLS TE tunnel RT 1-RT 2-RT 3-RT 4-RT 5 is set up between RT 1 and RT 5. See the figure for label distribution of the TE tunnel. A bypass tunnel RT 2-RT 6-RT 4 is configured on RT 2 to protect RT 3. See the figure for the label distribution of the bypass tunnel. When RT 3 is faulty,

  RT 2 switches traffic to the bypass tunnel. How many MPLS labels do packets on the path from RT 6 to RT 4 have? What is the value of each label?

  

  A. Two labels; label value: 3 for the outer label and 2200 for the inner label
  B. One label; label value: 3
  C. One label; label value: 2200
  D. Two labels; label value: 1200 for the outer label and 2200 for the inner label
  C. One label; label value: 2200

• Question 45:

  Which statement about the edge access layer is true?

  A. It connects users to the network by providing various access means, and converts the format of information so that the information can be transmitted on the network.
  B. Using the packet technology, it provides a comprehensive transport platform that boasts high reliability, quality of service (QoS) assurance, and large capacity.
  C. It implements call control. With the softswitch technology as the core, it completes basic realtime call control and connection control.
  D. It provides additional value-added services and operation support for established calls
  A. It connects users to the network by providing various access means, and converts the format of information so that the information can be transmitted on the network.

• Question 46:

  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
  C. The OSPF neighbor relationship can be established between RTA and RTB
  D. MD5 authentication is used between RTA and RTB

• Question 47:

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

• Question 48:

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

• Question 49:

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

• Question 50:

  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 discarded during network congestion because the IP priority of Telnet packets is 0 and is scheduled in the BE queue.
  B. Telnet packets are protocol packets and join high-priority queues by default.
  C. You can improve the priority of Telnet packets and add them to the PQ queue to ensure them during network congestion.
  D. The UDP port number for Telnet packets is 23.
  A. Telnet packets are discarded during network congestion because the IP priority of Telnet packets is 0 and is scheduled in the BE queue.
  C. You can improve the priority of Telnet packets and add them to the PQ queue to ensure them during network congestion.