Huawei H12-311 Exam Questions

Questions for the H12-311 were updated on : Dec 01 ,2025

Page 1 out of 23. Viewing questions 1-15 out of 340

Question 1

290. In huawei eSight In the network management, add WLAN Equipment methods include
(). (Select 3 Answers)

  • A. add manully
  • B. Automatically add
  • C. Bulk add
  • D. Script add
Answer:

A, B, C

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Question 2

179.CCMP The algorithm used for encryption is ().

  • A. RC4
  • B. AES
  • C. SMS4
  • D. Michael
Answer:

B

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Question 3

The following figure shows the hardware structure of an AirEngine 5760-51. Which of the following
statements is true?

  • A. 1: Reset button
  • B. 3: USB port
  • C. 2: Port that receives PoE power
  • D. 8: IoT slots
Answer:

D

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Question 4

Which of the following statements is true about the coverage distance design principles of a single
AP (20 dBm)?

  • A. It is recommended that a 5.8 GHz AP be deployed for through-wall signal coverage.
  • B. In the same scenario, the coverage distance of a 2.4 GHz AP is smaller than that of a 5.8 GHz AP.
  • C. Inter-floor coverage is supported.
  • D. In an open area, the coverage distance is designed based on the AP's coverage capability.
Answer:

D

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Question 5

Which of the following factors need to be taken into account when selecting a device in WLAN
planning?

  • A. Wi-Fi standard
  • B. MIMO
  • C. Antenna
  • D. Antenna gain
  • E. Maximum transmit power (combined power)
Answer:

A, B, C, D, E

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Question 6

dBm is a unit for measuring signal strength, and this can be converted into a value in mW. Which of
the following unit conversions are true?

  • A. 3 dBm = 2 mW
  • B. 10 dBm = 20 mW
  • C. 0 dBm = 1 mW
  • D. 3 dBm = 3 mW
Answer:

C

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Question 7

Which of the following statements about antenna gain are true?

  • A. When selecting the antenna gain, ensure that the beam matches the coverage area. If the coverage distance is small, select low-gain antennas with wide vertical lobes to ensure the coverage effect in the area near the antenna.
  • B. An antenna's gain quantitatively measures the degree of input power an antenna can radiate in a given direction.
  • C. An antenna's gain measures its ability to transmit and receive signals in a specific direction. It is irrelevant to the antenna model.
  • D. Antennas are passive components, and they do not amplify electromagnetic signals.
Answer:

A, B, D

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Question 8

What is the initialization state of an AP before the AP establishes a link with an AC for the first time?

  • A. normal
  • B. initial
  • C. connecting
  • D. idle
Answer:

D

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Question 9

Which of the following commands can be used to clear counter statistics?

  • A. clear
  • B. enable statistics
  • C. restart statistics
  • D. reset
Answer:

D

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Question 10

If an SSID is incorrectly configured, STAs may not discover the target Wi-Fi. How do I modify the SSID
to enable STAs to discover the target Wi-Fi?

  • A. Modify the WDS profile.
  • B. Modify the RRM profile.
  • C. Modify the SSID profile.
  • D. Modify the VAP profile.
Answer:

C

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Question 11

Fill in Blanks
When collecting fault information, you need to collect device logs, including ___ logs and ___ logs.

Answer:

operation
logs and alarm logs

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Question 12

Fill in Blanks
There are numerous methods of restarting a device. For example, onsite maintenance personnel can
restart a device in cold restart mode, while remote maintenance personnel can restart a device only
in ___ mode.

Answer:

warm restart

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Question 13

Huawei APs support SSIDs containing Chinese characters.

  • A. True
  • B. False
Answer:

A

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Question 14

Which of the following commands is not necessarily run in the WLAN view?

  • A. ssid-profile name xxx
  • B. capwap source interface vlanif 100
  • C. ap auth-mode mac-auth
  • D. ap-group name xxx
Answer:

B

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Question 15

DRAG DROP
Drag WLAN concepts on the left to their corresponding descriptions on the right.

Answer:

None

User Votes:

Explanation:
AC's country code → "Used for communication between the AC and AP and CAPWAP tunnel
establishment."
VAP → "Used to virtualize a physical AP into VAPs."
AC's source address → "Used to specify the radio features of APs, including the transmit power and
supported channels."
AP group → "Used for general configurations of multiple APs."
Forwarding mode → "Used to control the traffic direction of data packets."

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