Huawei H12-321 Online Practice Questions and Exam Preparation

Huawei H12-321 Online Questions & Answers

• Question 401:

  The following is true about the star network in the Mesh network?

  A. All connections require data forwarding through the central gateway device
  B. All connections do not need to be forwarded through the central gateway device
  C. All LAN data transmission must pass MPP
  D. All LAN data transmission does not need to pass MPP
  A. All connections require data forwarding through the central gateway device
  C. All LAN data transmission must pass MPP

• Question 402:

  In the figure, where STP needs to be enabled?

  

  A. AC GO/0/1
  B. MPP
  C. MP
  D. Switch
  D. Switch

• Question 403:

  After channel switching without service interruption is configured on an AP, when the AP channel needs to be switched, the AP will notify associated STAs in advance and switch to the new channel with STAs at the same time without interrupting services.

  A. TRUE
  B. FALSE
  A. TRUE

• Question 404:

  What is the correct description of RF resource management below?

  A. The propagation of wireless electromagnetic waves in the air will cause the wireless signal to attenuate due to the influence of the surrounding environment, which will affect the quality of wireless users' access to the Internet. Therefore, RF resource management is required.
  B. By configuring RF resource management, RF resources can be dynamically adjusted to adapt to changes in the wireless signal environment.
  C. By configuring radio resource management, you can improve the user's online experience.
  D. You can improve the security of user access by configuring radio resource management.
  A. The propagation of wireless electromagnetic waves in the air will cause the wireless signal to attenuate due to the influence of the surrounding environment, which will affect the quality of wireless users' access to the Internet. Therefore, RF resource management is required.
  B. By configuring RF resource management, RF resources can be dynamically adjusted to adapt to changes in the wireless signal environment.
  C. By configuring radio resource management, you can improve the user's online experience.

• Question 405:

  In order to solve the tunnel aggregation problem of WLAN roaming, the following principles for the processing of downlink broadcast and multicast packets are correct?

  A. At the HAC, discard unknown unicast packets at the entrance to the roaming tunnel
  B. Discard the multicast or broadcast packets of ARP, ND, DHCP, and mDNS at the HAC to avoid loops.
  C. The transparent broadcast/multicast packet reaches the FAC, and the FAC converts the unicast packet according to the source of the tunnel.
  D. FAP discards unknown unicast packets and forwards other packets to roaming STAs.
  A. At the HAC, discard unknown unicast packets at the entrance to the roaming tunnel
  C. The transparent broadcast/multicast packet reaches the FAC, and the FAC converts the unicast packet according to the source of the tunnel.

• Question 406:

  The figure shows the Mesh network configuration procedure. Which should be filled in ? ? and ?respectively?

  

  A. Reference Mesh profile. Configure Mesh whitelist. Configure Mesh profile.
  B. Configure Mesh whitelist. Configure Mesh profile. Reference Mesh profile.
  C. Configure Mesh profile. Reference Mesh profile. Configure Mesh whitelist.
  D. Configure Mesh whitelist. Reference Mesh profile. Configure Mesh profile.
  B. Configure Mesh whitelist. Configure Mesh profile. Reference Mesh profile.

• Question 407:

  CAC is implemented in three modes. Which of the following statements about CAC implementation based on channel usage is FALSE?

  A. When receiving a new access request, an AP calculates the current channel usage and checks whether the channel usage reaches the threshold. If not, the AP allows the user to go online.
  B. If the channel usage reaches the threshold after a new user goes online, an AP will reject access requests of new users, send alarms, but cannot hide its SSID.
  C. When a roaming user attempts to access an AP, the AP checks whether the channel usage reaches the CAC roaming threshold. If so, the AP will reject the access request of the roaming user and send alarms.
  D. An AP periodically detects the channel usage of a radio. Once the channel usage falls below the threshold, the AP sends a clear alarm, allowing new users to go online.
  B. If the channel usage reaches the threshold after a new user goes online, an AP will reject access requests of new users, send alarms, but cannot hide its SSID.

• Question 408:

  Regarding the precautions for configuring the HSB active/standby service, the following statement is wrong?

  A. If you want to modify, you need to delete the HSB active and standby services before reconfiguring.
  B. The configured HSB active/standby backup channel parameters take effect only after the dual-system hot backup function is enabled.
  C. After the configuration is complete, you can modify the parameters of the HSB active and standby backup channels.
  D. You cannot directly modify the parameters of the HSB active and standby backup channels after the configuration is complete.
  C. After the configuration is complete, you can modify the parameters of the HSB active and standby backup channels.

• Question 409:

  Which of the following statements about 802.lx authentication methods are TRUE? (Multiple Choice)

  A. 802.lx authentication methods include port-based authentication and MAC-based authentication.
  B. Port-based authentication and MAC-based authentication can be enabled simultaneously on the same interface.
  C. MAC-based authentication is more secure than port-based authentication.
  D. Port-based authentication is more secure than MAC-based authentication.
  A. 802.lx authentication methods include port-based authentication and MAC-based authentication.
  C. MAC-based authentication is more secure than port-based authentication.

• Question 410:

  When priorities of the active and standby ACs are configured in dual-link HSB mode, a larger priority value indicates a higher priority.

  A. TRUE
  B. FALSE
  B. FALSE