Huawei H12-321 Online Practice Questions and Exam Preparation

Huawei H12-321 Online Questions & Answers

• Question 81:

  After the dual-system hot backup is configured, the active and standby channels cannot be set up. The information on the active device cannot be backed up to the backup device. As a result, the dual-system hot backup function is abnormal. What is the possible cause of the fault?

  A. The priority values of the two ACs are consistent.
  B. The source IP address and source port number of the local end are inconsistent with the destination IP address and destination port number of the peer.
  C. The number of retransmissions of the primary and backup service packets is different from the retransmission interval.
  D. The TCP channel sent by the active and standby mechanism packets is not established.
  B. The source IP address and source port number of the local end are inconsistent with the destination IP address and destination port number of the peer.
  C. The number of retransmissions of the primary and backup service packets is different from the retransmission interval.
  D. The TCP channel sent by the active and standby mechanism packets is not established.

• Question 82:

  As shown in the figure, the WIDS attack detection process, after completing the dynamic blacklist, how does the AP handle different data traffic when it is in the blacklist penalty period?

  A. Forward normal data traffic and discard attack traffic
  B. Discard normal data traffic and report attack traffic
  C. Forward normal data traffic and report attack traffic
  D. Drop normal data traffic and discard attack traffic
  D. Drop normal data traffic and discard attack traffic

• Question 83:

  What is the correct description of the Mesh whitelist below?

  A. The system can automatically generate a dynamic whitelist
  B. Can perform topology control and restrict illegal devices from joining the mesh network.
  C. Can be used to prevent illegal user access
  D. Can replace the role of WPA security mechanisms
  B. Can perform topology control and restrict illegal devices from joining the mesh network.

• Question 84:

  When the air interface frame is a management frame, when the Capability Info field ESS and IBSS bits in the management frame are, can the device be determined to be a wireless bridge?

  A. 00
  B. 01
  C. 10
  D. 11
  C. 10

• Question 85:

  As shown in the figure, there are four online STAs (STA1-STA4) on the AP1 radio, and one online STA (STA5) on the AP2 radio. The load balancing threshold is exceeded. The maximum number of associated users supported by the AP1 and AP2 radios is 10. The configured load difference threshold is 10%. When STA6 makes a request to AP1 for the first time, is the following statement correct?

  A. AP1 is preferentially calculated according to the load balancing algorithm, allowing STA6 to access
  B. AP1 is preferentially calculated according to the load difference threshold algorithm, allowing STA6 to access
  C. AP1 is calculated according to the load balancing algorithm and rejects STA6 access.
  D. AP1 is preferentially calculated according to the load difference threshold algorithm, and STA6 access is denied.
  D. AP1 is preferentially calculated according to the load difference threshold algorithm, and STA6 access is denied.

• Question 86:

  Which of the following STAs does MAC address authentication suit the most?

  A. Office PC running a Windows OS
  B. Testing PC running a Linux system
  C. Mobile terminal, such as a smartphone
  D. Network printer
  D. Network printer

• Question 87:

  Regarding the Agile Controller admission model, what is the correct description below?

  A. In the admission model, the core is the authorization condition and authorization result
  B. Currently only 802.1x and Portal authentication can support all the conditions in the admission model.
  C. Authorization element does not include IP address range
  D. Authorization conditions include authorization elements
  A. In the admission model, the core is the authorization condition and authorization result
  B. Currently only 802.1x and Portal authentication can support all the conditions in the admission model.
  D. Authorization conditions include authorization elements

• Question 88:

  As shown in the figure, in the dual-link cold backup load balancing network, as shown in the figure, the two SSIDs of the Huawei and the guest are configured on the AC1, and the SSID of the Huawei is configured on the AC2. The same SSID configuration is the same, and AP1 is online. AC1 and AP1 establish the primary line first. After the AP1 is disconnected from the AC1 link and the active/standby switchover is sent, what is the service status of the user accessed by the Guest SSID?

  A. The service in the local forwarding mode is uninterrupted, and new users cannot access the guest.
  B. The service in the local forwarding mode is uninterrupted, and new users can access the guest.
  C. The service is interrupted in the centralized forwarding mode, and new users cannot access the Guest.
  D. The service in the centralized forwarding mode is uninterrupted, and new users cannot access the Guest.
  A. The service in the local forwarding mode is uninterrupted, and new users cannot access the guest.
  C. The service is interrupted in the centralized forwarding mode, and new users cannot access the Guest.

• Question 89:

  Which of the following statements is TRUE about communication between the active/standby ACs with the RADIUS/Portal server in load balancing mode?

  A. The active AC fills the NAS IP address and accounting session ID into accounting and authentication packets.
  B. The source IP address carried in RADIUS packets sent by the active and standby ACs must be the same, but the IP addresses of the two ACs configured on the RADIUS server carried in COA/DM packets can be different.
  C. If the original active AC is DOWN or the uplink of the original active AC is disconnected, the active AC needs to process received COA/DM packets and synchronize these packets to the standby AC, and delivers authorization information to APs.
  D. If the original active AC is not DOWN or the uplink of the original active AC is not disconnected, a loopback interface that uses the same IP address as the active AC needs to be configured on the standby AC. Routes to the loopback interface are not advertised but imported to IGP.
  A. The active AC fills the NAS IP address and accounting session ID into accounting and authentication packets.

• Question 90:

  In the indoor environment, signal reflection, refraction, diffraction, and scattering of walls and other obstacles are main factors affecting the link quality. The Fresnel zone is also an important factor.

  A. TRUE
  B. FALSE
  B. FALSE