Huawei H31-161 Online Practice Questions and Exam Preparation

Huawei H31-161 Online Questions & Answers

• Question 101:

  Which of the following statements describe the reliability requirements of the voice service for the IP bearer network?

  A. Key modules of equipment must support active/standby switching or other redundancy backup functions.
  B. The IP network uses a full/half-meshed structure and provides redundant links to strengthen the self-healing capability.
  C. Link protection switching time = 50 ms
  D. Link protection switching time can larger than 150 ms
  A. Key modules of equipment must support active/standby switching or other redundancy backup functions.
  B. The IP network uses a full/half-meshed structure and provides redundant links to strengthen the self-healing capability.
  C. Link protection switching time = 50 ms

• Question 102:

  Which statement describes the packet loss ratio requirement of the voice service for the IP bearer network?

  A. Allowed maximum packet loss =10-6
  B. Allowed maximum packet loss =1%
  C. No strict requirement
  D. Allowed maximum packet loss =1%
  B. Allowed maximum packet loss =1%

• Question 103:

  

  As shown in the figure, RTA connects to RTB and RTC. A TE tunnel is configured on RTA to reach RTC. The TE tunnel cannot be successfully established. However, CSPFbased path calculation is successful and RTA does not receive any PathErro messages. What are possible causes?

  A. The reserved bandwidth is insufficient at interface RTB-2.
  B. An interface address on RTB is the same as the address of interface RTA-1.
  C. RSVP-TE is not configured at interface RTB-2.
  D. Different authentication keys are configured on interfaces RTB-2 and RTC-1.
  C. RSVP-TE is not configured at interface RTB-2.
  D. Different authentication keys are configured on interfaces RTB-2 and RTC-1.

• Question 104:

  Refer to the exhibit.

  

  As shown in the figure, DUT stands for the device under test and RTA is used to support the test.What is the correct procedure of a fast convergence test? ( )

  1.

  Read data from the tester, record the numbers of sent and received packets, and count the number of lost packets.

  2.

  Switch the DUT-to-RTA background traffic to the link whose metric value is 100.

  3.

  DUT-to-RTA background traffic is forwarded along the link whose metric value is 10.

  4.

  Use the tester to advertise 10K routes to RTA and inject 10K flows to the DUT (each flow takes one route).

  5.

  Remove the optical fiber (providing a link whose metric value is 10) from the tester.

  6.

  Calculate the convergence time based on the number of lost packets and packet sending rate.

  7.

  Stop forwarding traffic when the packet receiving rate is equal to the packet sending rate.

  A. 1, 2, 3, 4, 5, 6, 7
  B. 3, 4, 5, 7, 2, 1, 6
  C. 4, 3, 5, 2, 7, 1, 6
  D. 3 5 4 2 1 6 7
  C. 4, 3, 5, 2, 7, 1, 6

• Question 105:

  RTA is a leaf router that directly connects to host A through interface GigabitEthernet 1/0/0. The interface is configured as follows: interface Ethernet1/0/0 undo shutdown ip address 192.168.4.2 255.255.255.0 pim sm igmp enable igmp version 3 igmp ssm-mapping enable

  Configurations in the IGMP view are as follows: igmp ssm-mapping 233.1.1.0 255.255.255.0 10.10.1.1 A user sends an IGMPv2 Report message on host A to join groups 232.1.1.1 and 233.1.1.1 but the user cannot receive (10.10.1.1, 232.1.1.1) and (10.10.1.1, 233.1.1.1) messages. To solve this problem, which of the following configurations

  are required?

  A. Configure ssm-mapping 232.1.1.0 255.255.255.0 10.10.1.1 in the IGMP view.
  B. Configure ssm-policy in the PIM view and use the ACL to set the SSM group address range to 233.1.1.1.
  C. Configure ssm-policy in the PIM view and use the ACL to set the SSM group address range to 232.1.1.1.
  D. Configure ssm-policy in the PIM view and use the ACL to set the SSM group address range to 232.1.1.1 and 233.1.1.1.
  A. Configure ssm-mapping 232.1.1.0 255.255.255.0 10.10.1.1 in the IGMP view.
  D. Configure ssm-policy in the PIM view and use the ACL to set the SSM group address range to 232.1.1.1 and 233.1.1.1.

• Question 106:

  User A want to obtain a better network service for business development and signs an SLA with a corner. User A purchases a bandwidth of 5 Mbit/s to ensure the voice service (requiring short delay), vide service, key data services, and other services, If you were corner network administrator.

  What would you do on the PE to ensure these services?

  A. Mark the VoIP service as EF, set the CIR to 0Mbit/s, and set the PIR to 1 Mbit/s mark the video service as AF 4 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.
  B. Mark the VoIP service as EF, set the CIR to 0Mbit/s, and set the PIR to 1 Mbit/s mark the video service as AF 4 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.
  C. Mark the VoIP service as EF, set the CIR to 1 0Mbit/s, and set the PIR to 1 Mbit/s mark the video service as AF 4 and set the CIR and PIR to 2 Mbit/s mark key data services as AF3, set the CIR to 2 Mbit/s and the 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 2 Mbit/s: marks the video service as AF 3 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 service as BE, set the CIR to 0 Mbit./s and set PIR to 5 Mbit/s
  C. Mark the VoIP service as EF, set the CIR to 1 0Mbit/s, and set the PIR to 1 Mbit/s mark the video service as AF 4 and set the CIR and PIR to 2 Mbit/s mark key data services as AF3, set the CIR to 2 Mbit/s and the 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.

• Question 107:

  As shown in the figure, the DiffServ model is deployed in E-LSP mode on the MPLS network. A tester connects to GE interfaces of RTA and RTC on the edge of the MPLS network through GE links. The trust upstream default command is configured for interfaces on the IP access side of RTA and RTC. When the tester sends IP packets with DSCP values 10, 12, and 14,the DSCP values of IP packets received at the receiver side are supposed to remain unchanged. However, the DSCP values of all received IP packets are

  10. In this case, which of the following statements are true? (Default mapping is configured between the EXP and DSCP values on each router.)

  

  A. The DSCP values are 10 when RTA's IP packets leave the MPLS network because the EXP values are 1 when RTA's IP packets enter the MPLS network.
  B. The configurations on RTA or RTC are incorrect.
  C. If the qos phb disable command is configured for the outbound interface on the IP access side of RTC, the DSCP values of packets the tester receives remain unchanged.
  D. The DSCP values of packets the tester receives are 10 regardless of whether qos phb disable is configured for the outbound interface on RTC's IP access side.
  A. The DSCP values are 10 when RTA's IP packets leave the MPLS network because the EXP values are 1 when RTA's IP packets enter the MPLS network.
  C. If the qos phb disable command is configured for the outbound interface on the IP access side of RTC, the DSCP values of packets the tester receives remain unchanged.

• Question 108:

  On a metropolitan area network, VIP customers access the network through the MPLS VPN to ensure their security. Which of the following security deployments are required for PEs?

  A. Configure the CP-CAR on the interface connected to the CE.
  B. Deploy protocol authentication if a router protocol is used between PEs and CEs.
  C. Configure the ACL to filter out data packets with common network viruses at the interface connected to the CE.
  D. Configure the ACL to filter out IP packets that use the IP address of the CE-connected interface as the destination address.
  B. Deploy protocol authentication if a router protocol is used between PEs and CEs.
  C. Configure the ACL to filter out data packets with common network viruses at the interface connected to the CE.

• Question 109:

  Which of the following will cause an MPLS L2VPN VC to be Down?

  A. Public LDP LSP tunnels are not Up.
  B. Interfaces connecting PEs to CEs use VLAN encapsulation, but the VLAN IDs are different.
  C. In Martini L2VPN, interfaces connecting PEs to CEs at both ends of a VC are configured with different VC IDs.
  D. In Kompella L2VPN, the two PEs allocate the same CE ID for the CEs connected to them.
  A. Public LDP LSP tunnels are not Up.
  D. In Kompella L2VPN, the two PEs allocate the same CE ID for the CEs connected to them.

• Question 110:

  Which statement describes the delay variation requirement of the voice service for the IP bearer network?

  A. No strict requirement
  B. Bearer network delay variation + 1s
  C. Bearer network delay variation +100 ms, allowed maximum delay variation +200 ms
  D. Bearer network delay variation = 10 ms. Allowed maximum delay variation =20ms
  D. Bearer network delay variation = 10 ms. Allowed maximum delay variation =20ms