Huawei H12-321 Online Practice Questions and Exam Preparation

Huawei H12-321 Online Questions & Answers

• Question 491:

  In the wireless access authentication, the Agile Controller can support multiple authentication modes. What is wrong with the following description of the Agile Controller authentication?

  A. Does not support MAC bypass authentication
  B. Support 802.1x authentication
  C. Support Portal authentication
  D. Multiple authentication methods can be used to authenticate users
  A. Does not support MAC bypass authentication

• Question 492:

  An engineer sets the CAPWAP heartbeat detection interval to 20 seconds and enables dual-link HSB. What is the heartbeat packet transmission timeout interval of the active link before an active/standby switchover occurs?

  A. 20 seconds
  B. 60 seconds
  C. 75 seconds
  D. 90 seconds
  B. 60 seconds

• Question 493:

  Regarding the description of roaming, is the following statement correct?

  A. The working channels of the two APs must be the same before and after roaming.
  B. The working channels of the two APs before and after roaming can be different.
  C. When the roaming and the new AP are associated with the STA, the re-association request is sent, and the information of the original associated AP is included.
  D. When the roaming is associated with the new AP, the STA sends the association request and contains the information of the original associated AP.
  B. The working channels of the two APs before and after roaming can be different.
  C. When the roaming and the new AP are associated with the STA, the re-association request is sent, and the information of the original associated AP is included.

• Question 494:

  Which of the following statement is TRUE about AC functions in the implementation of radio calibration?

  A. The AC maintains AP neighbor topology information according to the radio environment information sent by APs.
  B. The AC runs the radio calibration algorithm to coordinate and allocate channels and transmit power of APs.
  C. The channel adjustment and power adjustment algorithms in radio calibration are coupled with each other, and the AC needs to consider their influence to each other.
  D. The AC sends alarms, such as the AP offline alarms to the network management system.
  C. The channel adjustment and power adjustment algorithms in radio calibration are coupled with each other, and the AC needs to consider their influence to each other.

• Question 495:

  Which of the following statements about HSB channels in HSB mode is FALSE?

  A. It is recommended that an HSB channel between the active and standby ACs be connected through one cable to ensure high reliability.
  B. An HSB group is independent from backup services. An HSB group can work properly with no need to bind to an HSB service.
  C. In VRRP HSB mode, the HSB channel status changes with the VRRP active/standby status.
  D. In dual-link HSB, an HSB channel only functions as a data backup channel and does not have an active/standby status.
  B. An HSB group is independent from backup services. An HSB group can work properly with no need to bind to an HSB service.

• Question 496:

  As shown in the figure, regarding the N+1 backup networking, what is the following description correct?

  A. The standby AC3 must be in the same Layer 2 network as the primary AC1 and the primary AC2.
  B. On the AC3, all APs on the primary AC1 and the primary AC2 must be configured. After the AC is switched, the AP can obtain the correct configuration.
  C. Configure the corresponding priority of the AP on each active and standby AC. The AP can select the corresponding primary AC according to the priority carried by the AC.
  D. You can configure the corresponding MAC whitelist on the primary AC to ensure that the AP can go online on the corresponding AC to assist the AP to select the correct primary AC.
  B. On the AC3, all APs on the primary AC1 and the primary AC2 must be configured. After the AC is switched, the AP can obtain the correct configuration.
  C. Configure the corresponding priority of the AP on each active and standby AC. The AP can select the corresponding primary AC according to the priority carried by the AC.
  D. You can configure the corresponding MAC whitelist on the primary AC to ensure that the AP can go online on the corresponding AC to assist the AP to select the correct primary AC.

• Question 497:

  A large enterprise needs to deploy a WLAN network. The Huawei chassis switch (S77 / 97 / 127) is available on the current network. To reduce the space resources occupied by devices in the equipment room and facilitate the expansion of the WLAN network in the future, users can insert the switch in the frame switch. Insert the AC card into the WLAN network. Which of the following types of ACs can be inserted into the frame switch?

  A. ACU2
  B. AC6605
  C. AC6005
  D. X1E board
  A. ACU2
  D. X1E board

• Question 498:

  What information does an authorized AP need to collect and report to the AC during passive neighbor probe? (Multiple Choice)

  A. Interference between APs
  B. Interference from rogue APs
  C. Interference from non-Wi-Fi devices
  D. Infrared ray interference
  A. Interference between APs
  B. Interference from rogue APs
  C. Interference from non-Wi-Fi devices

• Question 499:

  In intelligent roaming, for terminals that support 802.11k, the correct step for selecting the appropriate AP is?

  1.

  Delayed sensitive service judgment

  2.

  Filter out APs that do not meet load balancing, filter out

  3.

  APs that do not satisfy CAC, and select the AP with the strongest selection

  4.

  signal as the target AP 5, and filter out

  5.

  APs that meet the threshold difference conditions.

  A. 1->2->3->4->5
  B. 1->3->4->5->2
  C. 1->5->3->2->4
  D. 1->4->5->3->2
  C. 1->5->3->2->4

• Question 500:

  In a data frame, which values of the To DS and From DS fields identify the device type as AP?

  A. 0, 0
  B. 0,1
  C. 1,0
  D. 1, 1
  B. 0,1