[2025年更新]合格できるH12-311_V3.0試験にはリアルな問題解答
H12-311_V3.0試験問題ゲット最新[2025]と正解回答
質問 # 133
802.11 In the frame, it is used to record the network allocation vector ( NAVWhat is the value of ()?
- A. address Bit
- B. Duration
- C. Frame Control
- D. Sequence control bit
正解：B
質問 # 134
For areas with roaming needs, adjacent AP Coverage remains 50% The above overlap to ensure that the terminal is AP Smooth switching between.
- A. True
- B. False
正解：A
質問 # 135
The following about SSID The statement is wrong ().
- A. One AP Configurable SSID There is no limit to the number
- B. One AP Can release the same SSID Signal
- C. One AP Can release multiple different SSID
- D. Multiple AP Can release the same one on SSID
正解：A
質問 # 136
Among the following options, which factors will cause users to be unable to search for wireless network signals ()? (Select 2 Answers)
- A. The user's wireless network card driver is abnormal
- B. The wireless controller is equipped with user isolation function
- C. AP Configured 5G Priority, leading to 2.4G Wireless client cannot find the signal
- D. The user's wireless network card is not enabled or the hardware switch of the wireless network card is not turned on
正解：A、D
質問 # 137
ETSI Which country or region is the standards organization ()?
- A. Europe
- B. America
- C. China
- D. Japan
正解：B
質問 # 138
Which of the following types of frames does a STA send to obtain surrounding wireless network information during active scanning?
- A. Authentication Request frame
- B. Association Request frame
- C. Probe Request frame
- D. Beacon frame
正解：C
質問 # 139
AP able to pass POE The switch performs power supply and data transmission.
- A. True
- B. False
正解：A
質問 # 140
Which of the following devices belong to Huawei Wireless Dual Band AP(Access Point )?
(Select 2 Answers)
- A. AP6010DN
- B. AP6010SN
- C. AP5010DN
- D. AP5010SN
正解：A、C
質問 # 141
MIMO The antenna configuration is usually expressed as " M*N ",in M and N What does each mean ()?
(Select 2 Answers)
- A. M Indicates the number of transmission antennas
- B. M Indicates the number of receiving antennas
- C. N Indicates the number of transmission antennas
- D. N Indicates the number of receiving antennas
正解：A、D
質問 # 142
Which two of the following are PoE The power supply standard ()? (Select 2 Answers)
- A. IEEE 802.3ae
- B. IEEE 802.3as
- C. IEEE 802.3at
- D. IEEE 802.3af
正解：C、D
質問 # 143
Which of the following authentication modes belong to link authentication?
- A. Shared key authentication
- B. PSK authentication
- C. Open system authentication
- D. PPSK authentication
正解：A、C
質問 # 144
WLAN AP It can be powered by ().
(Select 3 Answers)
- A. Independent power adapter
- B. POE switcher
- C. RF cable
- D. POE switch
正解：A、B、D
質問 # 145
Which of the following statements about antenna gain are true?
- A. An antenna's gain quantitatively measures the degree of input power an antenna can radiate in a given direction.
- B. Antennas are passive components, and they do not amplify electromagnetic signals.
- 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. 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.
正解：A、B、D
質問 # 146
Not loaded license Time AC6605 Supported by default AP The number is ().
- A. 0
- B. 1
- C. 2
- D. 3
正解：C
質問 # 147
If an enterprise's wireless network networking mode is direct forwarding, then thin and then transfer the message CAPWAP Encapsulate, pass CAPWAP The tunnel transmits this data message to AP can 802.11 Data messages are converted into Ethernet messages, AC.
- A. False
- B. True
正解：A
質問 # 148
If connected to the same SSID Of wireless clients want to start from a AP Roam to another AP, Then two AP The area where the signal overlaps between. What is the general range ()?
- A. 100%
- B. 50%
- C. No need to overlap
- D. 10%-15%
正解：D
質問 # 149
AP If you want to pass DNS Server fetch AC of IP Address, first get your own IP address,DHCP Server and DNS of IP address.
- A. True
- B. False
正解：A
質問 # 150
about 5G The working principle of priority, the following statement is correct ().
- A. 5G After the priority is turned on, only support 2.4G The network transmission speed of the client will be slower
- B. 5G Priority requires all clients to support at the same time
- C. 5G Priority request AP Is dual frequency AP Can work normally
- D. 5G Priority characteristics refer to 5G Client sends data first
正解：C
解説：
2.4GHz and 5GHz Frequency band
質問 # 151
If one BSS Totally by STA Composition, then BSS What is also called ()?
- A. SSID
- B. IBSS
- C. ESS
- D. BSA
正解：B
質問 # 152
If one 802.11n of AP support 2*2 of MIMO Technology, then this AP What is the theoretical rate of ()?
- A. 150 Mbps
- B. 600 Mbps
- C. 450 Mbps
- D. 300 Mbps
正解：D
質問 # 153
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