Huawei H31-161 Online Practice Questions and Exam Preparation

Huawei H31-161 Online Questions & Answers

• Question 121:

  Exhibit.

  

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

  A. Deletes the record of group 224.1.2.3
  B. Sends group-specific query messages for group 224.1.2.4
  A. Deletes the record of group 224.1.2.3

• Question 122:

  Which statement is false?

  A. The ASM multicast forwarding model does not allow the receiver to specify a multicast source.
  B. The PIM SSM multicast routing protocol cannot set up shared multicast forwarding trees.
  C. The SSM multicast forwarding model considers an (S,G) entry as one channel.
  D. The IGMP SSM Mapping function is to map a (*,G) Join message reported by the host to an (S,G) Join messag
  D. The IGMP SSM Mapping function is to map a (*,G) Join message reported by the host to an (S,G) Join messag

• Question 123:

  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. 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.
  C. 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.
  D. 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.
  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).
  C. 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.
  D. 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.

• Question 124:

  Which statement about the MPLS LSP traceroute is true?

  A. The destination IP address if an Echo request sent by the LSP traceroute is the IP address of the corresponding FEC.
  B. The downstream mapping TLV is used to carry downstream information of the correct node.
  C. Echo request route sends by the LSP traceroute can cay multiple downstream mapping TLVs.
  D. The egress route sends back an reply packet containing the downstream mapping TLV if the receives Echo request contains the downstream mapping TLV.
  B. The downstream mapping TLV is used to carry downstream information of the correct node.

• Question 125:

  Exhibit.

  

  Which statement about inter-AS MPLS VPN Option_B is false?

  A. The ASBR cannot be used as a PE simultaneously and a CE cannot be connected to an ASBR.
  B. When ASBRs are directly connected, packets transmitted on the VPN between them have only one label.
  C. The undo policy vpn-target command must be configured in the VPN4 address family view of the BGP neighbor of the ASBR to prevent routes from being filtered automatically.
  D. When ASBRs are directly connected, VPN traffic can be forwarder between them only after MPLS is enabled on the interfaces.
  A. The ASBR cannot be used as a PE simultaneously and a CE cannot be connected to an ASBR.

• Question 126:

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

• Question 127:

  In which L2VPN technology is L2VPN information transferred through the extended LDP signaling?

  A. Cross circuit connection (CCC)
  B. Martini
  C. Kompella
  D. SVC
  B. Martini

• Question 128:

  Which multicast protocol can support the SSM? (

  A. BGP
  B. OSPF
  C. PIMSSM
  D. PIMDM
  E. IGMPv2
  F. MLDv2
  G. IGMPv3
  C. PIMSSM
  F. MLDv2
  G. IGMPv3

• Question 129:

  In asymmetric dual-homing CE networking, which of the following statements about the VPN are true?

  

  A. RDs in the VPN instances configured on PE 2a and PE 2b must be the same.
  B. RDs in the VPN instances configured on PE 2a and PE 2b may be different.
  C. RTs in the VPN instances configured on PE 2a and PE 2b must be the same.
  D. RTs in the VPN instances configured on PE 2a and PE 2b may be different
  B. RDs in the VPN instances configured on PE 2a and PE 2b may be different.

• Question 130:

  As shown in the figure, the primary tunnel uses the path RTA -> RTB -> RTC. There are two FRR paths: One protects the link between RTA and RTB and the other one protects the link between RTB and RTC.If a path in the primary tunnel is faulty, which command can be used on RTA to locate the fault?

  

  A. display mpls te tunnel path
  B. display mpls te tunnel-interface
  C. display mpls lsp verbose
  D. display mpls te tunnel verbose
  A. display mpls te tunnel path