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Huawei H12-891 Exam
HCIE-Datacom V1.0 (Page 12 )

Updated On: 9-Feb-2026
Page 12 of 123
PDF with 610 Questions

You want only his telnet stream to be able to access the server (address 1011.100). Then, you add the following ACL to the routing ring: nule5pemit cp source ny destination 1011.100000destination-porteq 23 rule 1l0 deny ip source any destination any Then you apply that ACL to the ingress direction of the router's seial interface. What type of message is allowed to pass through the router?( Multiple choice questions).

  1. A non-sharded, port 21-accessing packet
  2. Non-first-sharded messages that use port 23 to access the server's message
  3. Non-first-of-sharded messages to access other hosts
  4. Non-first-of-its-kind packets that use port 21 to access the server
  5. Packet answer for the first sharded or non-sharded, using port 23 to access the server

Answer(s): B,D,E



What are the types of link types included in OSPF's route LSA?

  1. Stubnet
  2. P-2-P
  3. VLINK
  4. Fransnet

Answer(s): A,B,C,D



Off-stem cross-domain VPN-Option B scenario, the following description is incorrect?

  1. During the packet forwarding process, it is necessary to exchange the VPN's private network LSP on the
  2. two ASBRs IP-EBGP neighbor relationships.
  3. The cross-domain VPN-Option B scheme is not limited by the number of interconnection links between ASBRs
  4. The outer layer tag is exchanged between two ASBRs to vpnV4 routes.

Answer(s): D



Regarding the description of the BGP neighbor, the error is:

  1. BGP routers that support autodiscovery neighbors
  2. BGP establishing neighbors must be configured with MD5 authentication
  3. BGP needs to establish a UDP connection before establishing a neighbor
  4. BGP to establish a neighbor relationship needs to first interact with the link state information

Answer(s): A,B,C,D



A lot of overwave techniques have emerged in the process of replacing the IPV4 addresses used in the network with lP6 addresses. These technologies are divided into two categories, one is IP4IPV6 coexistence technology, the other is PA/IP>6 interoperability technology, which of the following options sleep in IPv4/IPv6 coexistence technology?

  1. NAT64
  2. IPv6 over IPv4
  3. Dual Stack
  4. ISATAP

Answer(s): B,C,D






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