Huawei H12-891 Online Practice Questions and Exam Preparation

Huawei H12-891 Online Questions & Answers

• Question 101:

  Which of the following command is to adjust the LINK cost value for the IS-IS interface?

  A. ISIS cost
  B. ISIS timer hello
  C. ISIS circuit type
  D. ISIS circuit level
  A. ISIS cost

• Question 102:

  When a client invokes the iMaster NCE-Campus RESTful API, it sends an HTTP request. The server then returns the status code 401. Which of the following errors has occurred?

  A. The service is unavailable.
  B. Access denied.
  C. The requested resource does not exist.
  D. Unauthorized.
  D. Unauthorized.

• Question 103:

  Which of the following statements incorrectly describes the function of OSPFv3 protocol authentication?

  A. OSPFv3 can only establish a Security Association (SA) using manual mode.
  B. Huawei router OSPFv3 IPSec authentication can support both transmission mode and tunnel mode.
  C. SPFv3 authentication relies on IPv6 packet authentication headers and encapsulation security payload headers.
  D. The OSPFv3 protocol header removes the Type and Authentication fields.
  B. Huawei router OSPFv3 IPSec authentication can support both transmission mode and tunnel mode.

  ---

• Question 104:

  Regarding the characteristics of CE dual attribution, which of the following descriptions is incorrect?

  A. CE accesses the backbone through two links that can be used for both load sharing and primary/standby
  B. CE and PE form a CE dual-home network, which can ensure high network availability
  C. VRFs of two PEs connected to the same CE can belong to different VPNs
  D. In a CE dual-home network, loops may occur and route-tag can be used to solve the loop problem
  C. VRFs of two PEs connected to the same CE can belong to different VPNs

  ---

• Question 105:

  Which of the following technologies can be used to isolate users in the same VLAN? (Choose three)

  A. Super VLAN
  B. Port isolation
  C. IPSG
  D. Ethernet port security
  B. Port isolation
  C. IPSG
  D. Ethernet port security

• Question 106:

  Which of the following community attributes ensure that BGP routes are transmitted only within an AS?

  A. No Export Subconfed
  B. No_Export
  C. Internet
  D. No_Advertise
  B. No_Export

• Question 107:

  After a wireless user passes Portal authentication, which of the following parameters cannot be used for authorizing the user?

  A. free-rule
  B. UCL
  C. IP address
  D. ACL
  C. IP address

• Question 108:

  An existing router running OSPF is connected to Area 0 and Area 1. You configured Area 1 as a stub area. What types of LSAs that operate only inside Area 1 are included?

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

• Question 109:

  On traditional campus networks, network admission control (NAC), VLAN, and ACL technologies are used to control users' network access rights. This results in heavy network OandM workload. Which of the following improvements does the free mobility solution of iMaster NCE-Campus make to traditional campus networks in terms of policy management and control? (Choose three)

  A. Administrators can use iMaster NCE-Campus to centrally manage service policies on network-wide policy enforcement points.
  B. Administrators can define service policies based on security groups to decouple service policies from IP addresses.
  C. Administrators need to configure service policies multiple times for each policy enforcement point through iMaster NCE-Campus, which then automatically delivers the policies to the corresponding policy enforcement points.
  D. Policy enforcement points on a network can subscribe to IP-security group entries through iMaster NCE-Campus to obtain the mapping between users and IP addresses on the entire network.
  A. Administrators can use iMaster NCE-Campus to centrally manage service policies on network-wide policy enforcement points.
  B. Administrators can define service policies based on security groups to decouple service policies from IP addresses.
  D. Policy enforcement points on a network can subscribe to IP-security group entries through iMaster NCE-Campus to obtain the mapping between users and IP addresses on the entire network.

• Question 110:

  As shown in the figure, PE1 establishes an EVPN peer relationship with each of PE2 and PE3. When the network is initialized, CE1 sends an ARP request packet. Which of the following statements are correct about how a PE processes the packet? (Choose three)

  

  A. When forwarding the packet to PE3, PE1 needs to add the BUM traffic label allocated by PE3 to the packet.
  B. PE1 sends a MAC/IP advertisement route carrying the MAC address of CE1.
  C. PE2 forwards the packet to CE1.
  D. PE3 forwards the packet to CE1.
  A. When forwarding the packet to PE3, PE1 needs to add the BUM traffic label allocated by PE3 to the packet.
  B. PE1 sends a MAC/IP advertisement route carrying the MAC address of CE1.
  D. PE3 forwards the packet to CE1.