Huawei H12-891 Online Practice Questions and Exam Preparation

Huawei H12-891 Online Questions & Answers

• Question 681:

  IPsec uses an asymmetric encryption algorithm to encrypt the symmetric algorithm key, which it uses to encrypt/decrypt data, ensuring security and performance.

  A. TRUE
  B. FALSE
  A. TRUE

• Question 682:

  Which of the following statements accurately describes the characteristics of a multi-instance Customer Edge (CE) device?

  A. Since the MCE device is already bound to the VPN, there is no need to bind the VPN on the Provider Edge (PE) connected to the MCE device.
  B. The MCE device can determine the source of routing information based on the interface that receives the routing information and maintain it in the routing table of the corresponding VPN.
  C. MCE is implemented by creating separate routing forwarding tables for different VPNs on the MCE device and binding them to the corresponding interfaces.
  D. Configuring MCE allows a CE to connect to multiple VPNs simultaneously, which not only completely isolates services between different VPN users but also reduces the network equipment costs.
  A. Since the MCE device is already bound to the VPN, there is no need to bind the VPN on the Provider Edge (PE) connected to the MCE device.

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• Question 683:

  There is an existing router interface Serial 0 in OSPF area 1. When this interface is set to be a silent interface, what is the impact of this setting?

  A. OSPF establishes usable adjacencies through this interface.
  B. OSPF does not add the routes learned from the connection to the local routing table.
  C. OSPF does not establish any adjacency relationships through the interface.
  D. OSPF receives route update answers from the neighbor.
  C. OSPF does not establish any adjacency relationships through the interface.

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  Explanation

• Question 684:

  Which types of LSAs definitely do not exist in an OSPF Stub area? (Choose three)

  A. Type 7
  B. Type 5
  C. Type 4
  D. Type 3
  A. Type 7
  B. Type 5
  C. Type 4

• Question 685:

  Which of the following VPN technologies may have two IP message headers in one message? (Choose three)

  A. GRE
  B. SSL VPN
  C. IPsec VPN
  D. L2TP
  A. GRE
  C. IPsec VPN
  D. L2TP

• Question 686:

  As shown in the figure, in the HUB and Spoke networking mode of an MPLS BGP VPN, each branch can communicate only with the headquarters, and branches cannot communicate with each other. Which of the following RT configuration scenarios can meet this requirement?

  

  A. HQ: Import Target: 1:23; Export Target: 1:23 Branch 1: Import Target: 1:23; Export Target: 1:23 Branch 2: Import Target: 1:23; Export Target: 1:23
  B. HQ: Import Target: 1:1; Export Target: 3:3 Branch 1: Import Target: 3:3; Export Target: 1:1 Branch 2: Import Target: 3:3; Export Target: 2:2
  C. HQ: Import Target: 2:2; Export Target: 3:3 Branch 1: Import Target: 3:3; Export Target: 1:1 Branch 2: Import Target: 3:3; Export Target: 2:2
  D. HQ: Import Target: 1:23; Export Target: 3:12 Branch 1: Import Target: 3:12; Export Target: 1:23 Branch 2: Import Target: 3:12; Export Target: 1:23
  D. HQ: Import Target: 1:23; Export Target: 3:12 Branch 1: Import Target: 3:12; Export Target: 1:23 Branch 2: Import Target: 3:12; Export Target: 1:23

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• Question 687:

  iMaster NCE-Campus restricts RESTful APIs. If a client sends a GET request that invokes a RESTful API to obtain site information from iMaster NCE-Campus, which of the following fields should be included in the request header?

  A. ACCESS-TOKEN
  B. ACCEPT-TOKEN
  C. X-ACCEPT-TOKEN
  D. X ACCESS TOKEN
  A. ACCESS-TOKEN

• Question 688:

  What are the three ways to send IPv4 messages? (Choose three)

  A. Broadcast
  B. Unicast
  C. Multicast
  D. Any broadcast
  A. Broadcast
  B. Unicast
  C. Multicast

• Question 689:

  What are the types of link types included in an OSPF Router LSA? (Choose four)

  A. Stub Network
  B. Point-to-Point
  C. Virtual Link
  D. Transit Network
  A. Stub Network
  B. Point-to-Point
  C. Virtual Link
  D. Transit Network

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  Explanation

• Question 690:

  What is the security level for untrust zones in the USG Series firewalls?

  A. 50
  B. 5
  C. 10
  D. 15
  B. 5

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