Huawei H31-161 Online Practice Questions and Exam Preparation

Huawei H31-161 Online Questions & Answers

• Question 111:

  OSPF BFD helps fast detect neighbor down events. OSPF BFD can be in which of the following states?

  A. Down
  B. Attempt
  C. Init
  D. 2-way
  E. Established
  F. Up
  A. Down
  C. Init
  F. Up

• Question 112:

  Exhibit.

  

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

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

• Question 113:

  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 default mapping from the EF value to the DDCP value is modified
  B. DSCP values of sent packets are not 10.
  C. The qos phb command is enabled on RTA's GigabitEthernet1/0/0.
  D. STC is disabled at RTA's GigabitEthernet 1/0/0.
  B. DSCP values of sent packets are not 10.

• Question 114:

  Refer to the exhibit.

  

  As shown in the figure, CE 1 and CE 2 belong to VPN A, both LDP and TE tunnels are configured between PE 1 and PE 2, the QPPB feature is configured on PE 2, and a tunnel policy is configured and applied to VPNs under PE 2 to make TE tunnels be preferred.

  11.11.11.11/32 is a static route on CE 1 and is learned by CE 2. CE 2, however, fails to apply resource isolation VPN to PE 2. What is the possible cause?

  A. The primary TE tunnel is down.
  B. The MPLS TE LSP between PEs is established incorrectly.
  C. MPLS TE is not enabled on PE 1.
  D. Resource isolation VPN tunnels are established incorrectly
  D. Resource isolation VPN tunnels are established incorrectly

• Question 115:

  Which of the following statements about IGP Shortcut and FA are true?

  A. An MPLS TE tunnel is viewed as a link and the MPLS TE tunnel interface is used as the outbound interface of a route.
  B. When IGP Shortcut is enabled, MPLS TE tunnels can be advertised to routers as if they are links.
  C. If FA is enabled on an MPLS TE tunnel, the MPLS TE tunnel can be shared by other routers.
  D. OSPF BFD does not need to be applied to IGP Shortcut-enabled tunnels.
  A. An MPLS TE tunnel is viewed as a link and the MPLS TE tunnel interface is used as the outbound interface of a route.
  C. If FA is enabled on an MPLS TE tunnel, the MPLS TE tunnel can be shared by other routers.
  D. OSPF BFD does not need to be applied to IGP Shortcut-enabled tunnels.

• Question 116:

  On a city's dual-plane bearer network, PE1-A and PE1-B are two PEs in different planes of the city.

  Three CEs are on the same VPN. The OSPF is used to exchange VPN route information between CE1 and PE1-A and between CE 2 and PE1-B. The default route leading to PE1-A is configured on CE3, and a static route leading to CE 3 is configured on PE1-A. The static route is imported to the OSPF, and the OSPF route is imported to the VPN instance of the BGP. The MP-IBGP neighbor relationship is established among the PEs. Subinterfaces are enabled in the links between PEs and are bound to the same VPN to exchange VPN route information between PEs.

  How many routes on PE1-B can reach CE 3?

  A. Only one (The route leading to CE 3 is learned based on the IBGP neighbor relationship between PEs. The other route is filtered out by OSPF loopback detection.)
  B. Two (One route is learned based on the IBGP neighbor relationship between PEs, and the other one is the OSPF category-5 route.)
  C. No route
  D. Only the OSPF category-5 route can reach CE 3.
  C. No route

• Question 117:

  On a router, HQoS parameter are configured for the users. The CURP of user 1 is Mbit/s. The CUR and PIR of user 2 are 0 Mbit/s and 10 Mbit/s, respectively. The CIR and PR of user 3 are 0 Mbit and 20 Mbit/s respectively. These three users join group with a bandwidth of 10 Mbit/s.

  Which statements is true?

  A. User 2 is of higher priority than user 1
  B. User 1 is of the highest priority among these users
  C. User 3 is of higher priority than user 2
  D. No user can preempt the bandwidth of the other two users
  C. User 3 is of higher priority than user 2

• Question 118:

  As shown in the figure , CE and CE 2 belong to VPN A, CE 3 and CE 4 belong to VPN B, VPN A and VPN B share the public network tunnels between border PE 1 and PE 2, and LDP tunnels are configured between PE 1 and PE 2. To isolate resources for VPN service data from PE 2 to PE 1, a unidirectional TE tunnel is configured t forward data from PE1. The QoS policy propagation though the border gateway protocol (QPPB) feature is configured on PE 2, and a QoS policy is defined when VPNs are bound to tunnel interfaces.

  

  Which of the following statements about the configurations on PE 2 are true?

  A. The mpls te commit command must be configured on the Tunnel1/0/0 interface,
  B. The mpls te cspf command must be configured in the global MPLS view.
  C. The maximum reserved bandwidth must not exceed the bandwidth of the tunnels.
  D. The maximum reserved bandwidth must not exceed the bandwidth of the physical links.
  E. The mpls te commit command must be configured on the Post/0/0 interface.
  A. The mpls te commit command must be configured on the Tunnel1/0/0 interface,
  B. The mpls te cspf command must be configured in the global MPLS view.
  D. The maximum reserved bandwidth must not exceed the bandwidth of the physical links.

• Question 119:

  What is the SSM group address range the IANA allocates for IPv4?

  A. 232.0.0.0/24
  B. 225.0.0.0/8
  C. 232.0.0.0/8
  D. 225.0.0.0/24
  C. 232.0.0.0/8

• Question 120:

  Refer to the exhibit.

  

  As shown in the figure, RT 5 is a stub area router, an external Internet route is imported by RT 1, and a virtual connection is established between RT 1 and RT 3.At present, the Internet is accessible to routers except RT 5. Why can the Internet not be accessed from RT 5?(Select two answers)

  A. Category 5 LSAs cannot be sent in a stub area.
  B. A stub area cannot be connected using a virtual link.
  C. The cost of the link between RT 1 and RT 3 is excessively large.
  D. RT1 does not inform RT 5 that category 3 LSAs are configured by default.
  C. The cost of the link between RT 1 and RT 3 is excessively large.
  D. RT1 does not inform RT 5 that category 3 LSAs are configured by default.