Practice HCIA-WLAN H12-311 exam. Online Exam Practice Tests with detailed explanations! Pass H12-311 with confidence!
H12-311 - Huawei Certified ICT Associate-Wireless Local Area Network Practice Tests 2021 | TestKingFree
NEW QUESTION 121
According to the direction, WLAN antennas can be classified into () antennas and () antennas. (Multiple choice)
- A. Plate shape
- B. Orientation
- C. Omnidirectional
- D. Paraboloid
Answer: B,C
NEW QUESTION 122
Which of the following materials does the WLAN signal pass have less penetration loss? (Multiple choice)
- A. Brick wall
- B. Concrete wall
- C. Glass window (colorless)
- D. Gypsum board
Answer: C,D
NEW QUESTION 123
What are the QoS service models (Select 3 Answers).
- A. FIFO model
- B. IntServ model
- C. Best Effort model
- D. DiffServ model
Answer: B,C,D
NEW QUESTION 124
According to the following output, the following statement is correct (Select 2 Answers).
<Quidway> display device
AC6605-26-PWR's Device status:
Slot Sub Type Online Power Register Status Role
0 - AC6605-26 Present PowerOn Registered Normal Master
POWER Present PowerOn Registered Normal NA
- A. To achieve the relevant configuration of the WLAN, the user must first switch to the wireless side through CTRL+Y.
- B. The user is currently on the wireless side of the AC.
- C. According to the output, the AC6605 adopts the POE power supply module.
- D. Currently the user is on the wired side of the AC.
Answer: A,D
NEW QUESTION 125
For the AC6605, the following commands can be used to check whether the AP is online.
- A. dispay ap-run-info all
- B. display ap all
- C. display ap-type all
- D. display ap online all
Answer: B
NEW QUESTION 126
Authentication is not related to the authentication encryption used by the WLAN itself when it is used by the WLAN.
- A. False
- B. True
Answer: A
NEW QUESTION 127
Which of the following WLAN signals pass through (Select 2 Answers).
- A. Brick wall
- B. Concrete wall
- C. Glass window (colorless)
- D. Gypsum board
Answer: C,D
NEW QUESTION 128
Which is the longest interval between 802.11 frames?
- A. PIFS
- B. IFS
- C. DIFS
- D. SIFS
Answer: C
NEW QUESTION 129
The gain of antenna A is 11dBi, and the gain of antenna B is 8dBi. It can be said that antenna A has a larger gain than antenna B.
- A. 3dBd
- B. Uncertain
- C. 3dB
- D. 3dBi
Answer: B,C,D
NEW QUESTION 130
With which of the following ways does the antenna get the gain?
- A. Using high efficiency antenna feeders
- B. Make the antenna radiation more concentrated
- C. Using a power amplifier in an antenna system
- D. Equipment using low standing wave ratio
Answer: B
NEW QUESTION 131
The following statement about the region is correct (Select 3 Answers)?
- A. AP region is laid in three types: dense placement, discrete deployment, and normal deployment.
- B. APs belonging to the same region will uniformly adjust the RF channel and power.
- C. If you do not configure, all APs belong to region 0 by default.
- D. An AP can belong to two regions at the same time, so that roaming is more optimized.
Answer: A,B,C
NEW QUESTION 132
Which of the following is wireless LAN standards originally formulated by IEEE?
- A. IEEE 802.16
- B. IEEE 802.12
- C. IEEE 802.11
- D. IEEE 802.10
Answer: C
NEW QUESTION 133
The two bands of an AP that implements spectrum navigation must use the same SSID and security policy.
- A. True
- B. False
Answer: A
NEW QUESTION 134
IEEE is the standard organization responsible for the use of wireless frequencies in the United States.
- A. False
- B. True
Answer: A
NEW QUESTION 135
When deploy AP on several floors of a building, which of the following factors are needed to pay attention to? (Multiple Choice)
- A. in order not to affect beautiful, AP should be hidden in the ceiling
- B. the material of the wall
- C. unified planning channel
- D. other interfering signals
Answer: B,C,D
NEW QUESTION 136
In China, the WLAN band supported by regulations is
- A. 5.15-5.25GHz
- B. 5.25-5.35GHz
- C. 2.4-2.4835GHz
- D. 5.725-5.850GHz
Answer: C,D
NEW QUESTION 137
WLAN APs can be powered by (Select 3 Answers).
- A. POE adapter
- B. Independent power adapter
- C. POE switch
- D. RF cable
Answer: A,B,C
NEW QUESTION 138
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