Huawei H12-891 Online Practice Questions and Exam Preparation

Huawei H12-891 Online Questions & Answers

• Question 841:

  FILL IN THE BLANK During the configuration of L3VPNv4 over SRv6 BE, if an RR is deployed in the SR domain, _____ command must be run on the RR to ensure that the PEs at both ends can correctly learn VPNv4 routes.

  ipv4-family vpnv4 unicast enable-srv6

• Question 842:

  OSPFv3 link LSAs are advertised in the entire area.

  A. TRUE
  B. FALSE
  B. FALSE

• Question 843:

  FILL IN THE BLANK

  A VGMP packet is encapsulated with a UDP header and a VGMP header. By default, a VGMP packet uses UDP port _____.

  58888

• Question 844:

  What can be determined from the following output? (Choose three)

  display ipv6 routing-table protocol isis Public Routing Table : ISIS Summary Count: 6 ISIS Routing Table's Status : Summary Count: 6 Destination : 3000:FDEA::4 NextHop : FE80::2E0:FCFF:FE98:2577 Cost : 20 Interface : GigabitEthernet0/0/1 PrefixLength : 128 Preference : 15 Protocol : ISIS-L2 Flags : D

  A. R1 has six IS-IS IPv6 routes
  B. R1 does not have IS-IS IPv6 routes
  C. IS-IS IPv6 must have been enabled on GigabitEthernet0/0/1 of R1.
  D. R1 is not a Level-1 device.
  A. R1 has six IS-IS IPv6 routes
  C. IS-IS IPv6 must have been enabled on GigabitEthernet0/0/1 of R1.
  D. R1 is not a Level-1 device.

• Question 845:

  In Huawei Open Programmability System (OPS), /ifm/interfaces/interface is the URL used to identify a device's managed object.

  A. TRUE
  B. FALSE
  A. TRUE

• Question 846:

  When an NVE encapsulates a data frame into a VXLAN packet, information of which of the following protocols is encapsulated between the outer IP header and the VXLAN header?

  A. IP
  B. TCP
  C. UDP
  D. Ethernet
  C. UDP

• Question 847:

  In the topology shown, a GRE tunnel is established between R1 and R2. If the command ping -a 10.1.1.1 10.3.1.1 is executed on R1, which of the following statements correctly describe the ICMP packet sent out of GE0/0/1 on R1? (Choose two)

  

  A. The packet is encapsulated using GRE, and the source and destination IP addresses in the outer IP header are 10.0.12.1 and 10.0.12.2, respectively.
  B. The packet is encapsulated using GRE, and the source and destination IP addresses in the outer IP header are 10.0.12.1 and 10.3.1.1, respectively.
  C. The packet is encapsulated using GRE, and the source and destination IP addresses in the inner IP header are 10.1.1.1 and 10.3.1.1, respectively.
  D. The packet is encapsulated using GRE, and the source and destination IP addresses in the inner IP header are 10.1.1.1 and 10.0.12.2, respectively.
  A. The packet is encapsulated using GRE, and the source and destination IP addresses in the outer IP header are 10.0.12.1 and 10.0.12.2, respectively.
  C. The packet is encapsulated using GRE, and the source and destination IP addresses in the inner IP header are 10.1.1.1 and 10.3.1.1, respectively.

• Question 848:

  Which of the following scenarios does not require RPF checking?

  A. When a router in PIM-SM receives multicast traffic
  B. When a shared tree is established to an RP in PIM-SM
  C. When a pruning message is received in PIM-SM
  D. When the RP in PIM-SM establishes the source tree to the multicast source
  C. When a pruning message is received in PIM-SM

• Question 849:

  BGP EVPN can be used as the VXLAN control plane protocol to completely prevent traffic flooding, such as broadcast ARP packets, on the VXLAN network.

  A. TRUE
  B. FALSE
  A. TRUE

• Question 850:

  NAFTIR policing can only be applied to the inbound direction. Its purpose is to monitor the traffic entering the device and ensure that the upstream device does not unnecessarily consume network resources.

  A. TRUE
  B. FALSE
  A. TRUE