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  1. Home
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  3. H12-321

Huawei H12-321 Exam (page: 19)
Huawei Certified Network Professional - Wireless Local Area Network- Constructing Enterprise WLAN Architecture
Updated on: 15-Feb-2026

Viewing Page 19 of 109
H12-321 PDF 536 Questions

Which of the following statements about a Fresnel zone is TRUE?

  1. The narrower the beamwidth, the larger the Fresnel zone.
  2. The narrower the beamwidth, the smaller the Fresnel zone.
  3. The Fresnel zone size is irrelevant to the beamwidth.
  4. None of the above.

Answer(s): C



Which of the following statements about the N+l backup networking shown in the figure are TRUE? (Multiple Choice)

  1. Standby AC3 must be on the same Layer 2 network as active AC1 and active AC2.
  2. Basic WLAN service configurations on standby AC3 must be the same as those on active AC1 and active AC2 to ensure that APs can obtain the correct configuration after an active/standby switchover of AGs.
  3. AP-specific priorities can be configured on active and standby ACs respectively so that APs can select the corresponding active AC based on the priority configurations on ACs.
  4. Corresponding MAC address whitelists can be configured on active ACs to ensure that APs select the correct active AC and go online on the AC.

Answer(s): B,C,D



An engineer enables dual-link backup but does not change the CAPWAP heartbeat detection interval and the number of heartbeat packet transmissions. In default situation, what is the heartbeat packet transmission timeout interval of the active link before an active/standby switchover occurs?

  1. 25 seconds
  2. 50 seconds
  3. 75 seconds
  4. 150 seconds

Answer(s): C



A large enterprise needs to deploy a wired and wireless integrated network to facilitate unified user management and maintenance. Which of the following AC models are recommended?

  1. S12700 + ACU2
  2. AC6605
  3. AC6005
  4. S12700 + X1E card

Answer(s): D



Which of the following statements about global calibration algorithms are TRUE? (Multiple Choice)

  1. The core of the Dynamic Channel Allocation (DCA) algorithm is the exhaustion and iteration algorithms, which list all possible AP-Channel combinations and choose the optimal combination.
  2. The Transmit Power Control (TPC) algorithm aims to choose a proper transmit power which can meet coverage requirements of an AP.
  3. Interference specified by the lower interference threshold is low, and within the allowed range. Two neighbor APs cannot detect interference from each other and can send packets simultaneously.
  4. If the interference caused by a neighbor is smaller than the lower interference threshold, the algorithm determines whether to reduce the transmit power according to the difference between the interference caused by the neighbor and the lower interference threshold.

Answer(s): A,C



Viewing Page 19 of 109



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