Huawei H12-321 Online Practice Questions and Exam Preparation

Huawei H12-321 Online Questions & Answers

• Question 141:

  As shown in the figure, in order to prevent the STP packets from being transparently transmitted, the loops affect each other. The following does not need to enable the STP spanning tree protocol?

  A. Only the MPP wired side interface needs to enable STP.
  B. Only the MP3 wired side interface needs to enable STP.
  C. MPP and MP3 wired side interfaces must be enabled with STP.
  D. MP1 and MP2 need to enable STP
  A. Only the MPP wired side interface needs to enable STP.

• Question 142:

  Regarding the load sharing method of the dual-system hot backup solution, is the following statement correct?

  A. VRRP hot backup mode can be applied to load sharing mode.
  B. The selection of active and standby devices for dual-system hot backup is consistent with the selection of dual-link active and standby devices.
  C. The HSB active/standby service backs up related information on the primary device to the backup device.
  D. Dual-link backup can be applied to load sharing mode
  B. The selection of active and standby devices for dual-system hot backup is consistent with the selection of dual-link active and standby devices.
  C. The HSB active/standby service backs up related information on the primary device to the backup device.
  D. Dual-link backup can be applied to load sharing mode

• Question 143:

  When using the Agile Controller to synchronize data, an engineer finds that information of the following users cannot be synchronized: Jack=boss/ Mike=leader/ Mary=manager, Ann=girlfriend. There are no duplicate user names in the related user groups or OUs. What may cause the synchronization failure?

  A. The user names are too long.
  B. The user names are too short.
  C. The user names contain invalid characters.
  D. The user names must contain digits and letters.
  C. The user names contain invalid characters.

• Question 144:

  After AP online configuration is complete on a Layer 3 WLAN, APs cannot go online. What are the possible causes? (Multiple Choice)

  A. The source interface is not configured.
  B. The network route is unreachable.
  C. The Option 43 field is not configured.
  D. VLAN Pool is not configured.
  A. The source interface is not configured.
  B. The network route is unreachable.
  C. The Option 43 field is not configured.

• Question 145:

  The Agile Controller can synchronize user information with the AD or LDAP directory server. Therefore, the Agile Controller can synchronize user information with any directory server that supports the LDAP directory service protocol.

  A. TRUE
  B. FALSE
  A. TRUE

• Question 146:

  What is wrong about the description of the first Fresnel zone below?

  A. The first Fresnel zone will affect the integrity of RF communications even if it is partially blocked.
  B. The Fresnel zone is blocked and the RF signal is diffracted or bent.
  C. Signal diffraction will cause the RF energy received by the antenna to decrease, and even lead to communication link interruption.
  D. In any case, the proportion of the first Fresnel zone blocked by obstacles should not exceed 60%.
  D. In any case, the proportion of the first Fresnel zone blocked by obstacles should not exceed 60%.

• Question 147:

  In the dual-link cold backup networking diagram shown in the figure, API goes online, and APs are allowed to connect to both ACs. Which AC will API connect to?

  

  A. AC1
  B. AC2
  C. Either of them
  D. None of them
  A. AC1

• Question 148:

  STAs do not need to support channel switching without service interruption for implementing this function.

  A. TRUE
  B. FALSE
  B. FALSE

• Question 149:

  The following statement about the proactive detection of neighbors is wrong?

  A. The AP periodically sends a Probe Request frame with the specified multicast address on different channels. After receiving the AP, the AP detects that the AP is a neighbor AP.
  B. Active detection is mainly used to establish neighbor relationships between legal APs.
  C. Active detection is mainly used to obtain the maximum interference signal strength between legal neighbors, the most critical of which is the signal strength of neighbor APs.
  D. Active detection and passive detection are used to collect interference from illegal APs.
  D. Active detection and passive detection are used to collect interference from illegal APs.

• Question 150:

  On a WLAN network, AP group ap-group1 and WIDS profile wids1 are configured. Which of the following is the correct configuration to enable WIDS device detection?

  A. [AC-wlan-view]ap-group name ap-group1 [AC-wlan-ap-group-ap-groupl]radio 0 [AC-wlan-group-radio-ap-groupl/0]work-mode monitor [AC-wlan-group-radio-ap-groupi/0]wids device detect enable
  B. [AC-wlan-view]ap-id 0 [AC-wlan-ap-0]radio 0 [AC-wlan-radio-0/0]work-mode monitor [AC-wlan-radio-0/0]wids device detect enable
  C. [AC-wlan-view]wids-profile name wids1 [AC-wlan-wids-prof-widsl]device detect enable
  D. [AC-wlan-view]wids-profile name wids1 [AC-wlan-wids-prof-widsl]wids device detect enable
  A. [AC-wlan-view]ap-group name ap-group1 [AC-wlan-ap-group-ap-groupl]radio 0 [AC-wlan-group-radio-ap-groupl/0]work-mode monitor [AC-wlan-group-radio-ap-groupi/0]wids device detect enable