Huawei H31-161 Online Practice Questions and Exam Preparation

Huawei H31-161 Online Questions & Answers

• Question 131:

  display current-configuration # multicast routing-enable # interface Ethernet6/1/0 ip address 10.1.1.1 255.255.255.0 igmp timer query 40 # igmp The preceding are partial multicast router configurations. How long is the interval (in seconds) for sending IGMP General Query messages when IGMP is enabled on Ethernet 6/1/0?

  A. 15
  B. 10
  C. 40
  D. 60
  B. 10

• Question 132:

  Which of the following can be implemented in an IP backbone network?

  A. RIP
  B. BGP
  C. ISIS
  D. MPLS
  B. BGP
  C. ISIS
  D. MPLS

• Question 133:

  Refer to the exhibit.

  

  As shown in the figure, PE 1 sets up an MP-IBGP neighbor relationship

  with PE 2 and they communicate over MPLS LDP. A CE communicates with a PE over OSPF. Configure the VRF on PE 1 as follows: ip vpn-instance vrf1 route-distinguisher 100:1 vpn-target 1:1 export-extcommunity vpn-target 1:1 import-extcommunityConfigure OSPF on PE 1 as follows: ospf 1 vpn-instance vrf1 area 0.0.0.0 network 100.1.1.0 0.0.0.255 Configure BGP on PE 1 as follows: bgp 100 peer 22.22.22.22 as-number 100 peer 22.22.22.22 connect-interface LoopBack0

  # ipv4-family unicast undo synchronization peer 22.22.22.22 enable

  # ipv4-family vpnv4 policy vpn-target peer 22.22.22.22 enable # ipv4-family vpn-instance vrf1 import-route ospf 1 PE 2 has the same configurations as PE 1. MP-IBGP neighbor relationships have been set up between PEs, and OSPF neighbor relationships have been set up between PEs and CEs. A valid route 1.1.1.1/32 is imported from CE 1 to an

  OSPF area, but CE 1 does not learn the route. What is the reason?

  A. CE cannot be connected to a PE through OSPF.
  B. CE can be connected to a PE through OSPF only when the PE also runs OSPF.
  C. An RD is shared by VRFs on PE 1 and PE 2.
  D. BGP routes must be imported to OSPF areas on a PE.
  D. BGP routes must be imported to OSPF areas on a PE.

• Question 134:

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

  A. 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.
  B. 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.
  C. 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.
  D. 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.
  A. 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.
  D. 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 135:

  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?

  

  

  A. Option A
  B. Option B
  C. Option C
  D. Option D
  D. Option D

• Question 136:

  Which statement about the interworking between a VPN and the Internet is false?

  A. For a VPN and the Internet to interwork, the user device used to access the Internet must have a route to the desired address on the Internet and a backhaul route.
  B. A VPN and the Internet can interwork through the PE, Internet gateway, or CE.
  C. A VPN and the Internet can interwork through the CE or PE.
  D. For a VPN and the Internet to interwork, network address translation (NAT) must be performed. NAT can be deployed on the interface of a PE used to connect to the Internet gateway, on the interface of a PE used to connect to a CE, or on the interface of a CE used to connect to a PE.
  D. For a VPN and the Internet to interwork, network address translation (NAT) must be performed. NAT can be deployed on the interface of a PE used to connect to the Internet gateway, on the interface of a PE used to connect to a CE, or on the interface of a CE used to connect to a PE.

• Question 137:

  User A wants to obtain a better network service for business development and signs an SLA with a carrier. User A purchases a bandwidth of 5 Mbit/s to ensure the voice service (requiring short delay), video service, key data services, and other services. If you were the carrier's network administrator, what would you do on the PE to ensure these services?

  A. Mark the VoIP service as EF, set the CIR to 1 Mbit/s, and set the PIR to 1 Mbit/s; mark the video service as AF4, set the CIR to 2 Mbit/s, and set the PIR to 2 Mbit/s; mark key data services as AF1, set the CIR to 2 Mbit/s, and the PIR to 5 Mbit/s; mark other services as BE, set the CIR to 0 Mbit/s, and set PIR to 5 Mbit/s.
  B. Mark the VoIP service as AF4, set the CIR to 0 Mbit/s, and set the PIR to 1 Mbit/s; mark the video service as EF and set the CIR and PIR to 5 Mbit/s; mark key data services as AF3, set the CIR to 2 Mbit/s, and the PIR to 5 Mbit/s; mark other services as BE, set the CIR to 0 Mbit/s, and set PIR to 2 Mbit/s.
  C. Mark the VoIP service as EF and set the CIR and PIR to 2 Mbit/s; mark the video service as AF3 and set the CIR and PIR to 2 Mbit/s; mark key data services as AF4, set the CIR to 2 Mbit/s, and the PIR to 5 Mbit/s; mark other services as BE, set the CIR to 0 Mbit/s, and set PIR to 5 Mbit/s.
  D. Mark the VoIP service as EF, set the CIR to 0 Mbit/s, and set the PIR to 1 Mbit/s; mark the video service as AF4 and set the CIR and PIR to 2 Mbit/s; mark key data services as AF3, set the CIR to 1 Mbit/s, and the PIR to 5 Mbit/s; mark other services as AF1, set the CIR to 2 Mbit/s, and set PIR to 5 Mbit/s.
  D. Mark the VoIP service as EF, set the CIR to 0 Mbit/s, and set the PIR to 1 Mbit/s; mark the video service as AF4 and set the CIR and PIR to 2 Mbit/s; mark key data services as AF3, set the CIR to 1 Mbit/s, and the PIR to 5 Mbit/s; mark other services as AF1, set the CIR to 2 Mbit/s, and set PIR to 5 Mbit/s.

• Question 138:

  CR-LSP and GRE are selected as tunneling policies. CR-LSP has a higher priority and a maximum of three tunnels can be configured for load balancing. Which statement about tunnel selection is false?

  A. The CR-LSP tunnel in the Up state is preferred. If less than three CR-LSP tunnels are in the Up state, GRE tunnels in the Up state are also selected until there are three available tunnels.
  B. One GRE tunnel is selected. If a new CR-LSP tunnel is added or a CR-LSP tunnel becomes Up, the selected GRE tunnel will be replaced with an active CR-LSP.
  C. If the number of tunnels used for load balancing is less than the configured value and CR-LSP or GRE tunnels become Up, these tunnels will also be configured for load balancing.
  D. When three CR-LSP tunnels are used for load balancing, the three CR-LSP tunnels must be in different
  D. When three CR-LSP tunnels are used for load balancing, the three CR-LSP tunnels must be in different

• Question 139:

  Two BGP routes with the same prefix are received from two peers. The two routes have the same attributes except the next hop (NH1 and NH2).NH1 is iterated to the directly connected A and B, NH2 to directly connected C and D. If maximum load-balancing2 is configured in BGP and a router can be configured with a maximum of six paths for load balancing, how many paths does a forward information base (FIB) generate regarding this prefix?

  A. 1
  B. 2
  C. 3
  D. 4
  D. 4

• Question 140:

  With the NAT technology, which of the following elements can be translated?

  A. Destination port number
  B. Source port number
  C. Source IP
  D. Session table
  E. Destination IP
  A. Destination port number
  B. Source port number
  C. Source IP
  E. Destination IP