Huawei H12-891 Online Practice Questions and Exam Preparation

Huawei H12-891 Online Questions & Answers

• Question 561:

  Which of the following is the purpose of configuring IS-IS fragmentation on an IS-IS device?

  A. Disable the device from establishing IS-IS neighbor relationships.
  B. Enable the device to support more IS-IS routes.
  C. There is no practical purpose.
  D. Disable the device from learning IS-IS link-state information.
  B. Enable the device to support more IS-IS routes.

• Question 562:

  On a VXLAN-based virtualized campus network, BGP EVPN can be used as the control plane protocol. Which of the following EVPN route types are not used in the virtualized campus network scenario?

  A. Type 3
  B. Type 2
  C. Type 4
  D. Type 1
  C. Type 4

• Question 563:

  If you run PIM-SM in a multicast network, you need to build a multicast forwarding tree between the multicast source and the receiver to enable the receiver to receive the multicast effect. What are the following options for the correct tree sketch for the build? (Choose two)

  A. What is built between the multicast source and the RP is the SPT tree
  B. RP and the receiver is built between the RPT tree
  C. Built between the RPT tree
  D. RP and the swap is the SPT tree
  A. What is built between the multicast source and the RP is the SPT tree
  B. RP and the receiver is built between the RPT tree

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• Question 564:

  An engineer often remotely logs in to the device to check the device status. The engineer can use the Python Paramiko and telnetlib libraries to implement automatic remote login through Python scripts. The remote login implemented using telnetlib is more secure.

  A. TRUE
  B. FALSE
  B. FALSE

• Question 565:

  In a scenario where a VXLAN tunnel is dynamically established through BGP EVPN, which of the following command needs to be run on the VBDIF interface to enable the VTEP peer to generate BGP EVPN Type 2 routes based on ARP information of the local terminal?

  A. mac-address xxxx-xxxx-xxxx
  B. arp-proxy enable
  C. arp collect host enable
  D. arp distribute-gateway enable
  C. arp collect host enable

• Question 566:

  As shown below, R1 and R2 establish EBGP neighbors, and once the BFD detection function is enabled, which of the following statement is correct?

  

  A. R2 detection time for BFD packets is 800 ms
  B. R1 detection time for BFD messages is 1280 ms
  C. R1 detection time for BFD messages is 660 ms
  D. R2 detection time for BFD messages is 600 ms
  C. R1 detection time for BFD messages is 660 ms

• Question 567:

  Which of the following sequences can be matched by the regular expression [^100|200]$? (Choose three)

  A. 300200 100
  B. 200 100 300
  C. 100 200 300
  D. 100,300,200
  B. 200 100 300
  C. 100 200 300
  D. 100,300,200

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  Explanation

• Question 568:

  The role of Link-LSA in OSPFv3 does not include:

  A. Advertise to other routers on the link the Options field that is set in the Network-LSA from which this link originates
  B. Advertise the per-port ID of this router to other routers on the link
  C. Advertise the link-local address of this interface to other routers on the link
  D. Advertise this interface's IPv6 prefix list to other routers on the link
  A. Advertise to other routers on the link the Options field that is set in the Network-LSA from which this link originates

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  Explanation

• Question 569:

  Which of the following statements is incorrect about intranet security design for a large or medium-sized virtualized campus network?

  A. Traffic suppression can be configured on the wired network to block broadcast traffic by shutting down interfaces.
  B. Intranet security refers to both wired and wireless network security.
  C. To secure data transmission, the CAPWAP tunnel between the AC and AP supports DTLS encryption.
  D. In addition to terminal access security, air interface security must be considered during wireless network security design.
  A. Traffic suppression can be configured on the wired network to block broadcast traffic by shutting down interfaces.

• Question 570:

  As shown in the following figure, R1 and R2 establish a neighbor relationship for Level-2, which is critical. Which of the following statements about the route entry for R2 is correct? (Choose three)

  

  A. The 2020::/64 route appears in the IP routing table
  B. 2022::/64 routes appear in the IP routing table
  C. 2021:-/64 Router will appear in the P routing table
  D. 2021::/64 route will appear
  A. The 2020::/64 route appears in the IP routing table
  B. 2022::/64 routes appear in the IP routing table
  C. 2021:-/64 Router will appear in the P routing table

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