Free Access H3C.GB0-342-ENU.v2023-02-25.q133 Practice Test (Page 10)

Question 41

Air interface channel utilization is an important indicator for judging the current channel busyness of the AP. By checking the air interface channel utilization of the AP, the current occupancy of the channel can be judged. The following description about how to check the air interface channel utilization" is correct

A.In the hidden command mode, use the command display ar5d radio-num channel busy to query the air interface channel utilization";

B.By default, the system checks the channel utilization every 9 seconds;

C.When viewing the value through the command, the system will count the last 20 channel utilization values;

D.When the working channel of the AP is switched, the system will clear the statistics record value.

Question 42

The correct way of waterproofing the feeder interface is

A.First wrap it with insulating tape, then wrap it with a layer of insulating tape, and finally add a layer of waterproof tape to seal.

B.First wrap it with waterproof tape, then wrap it with a layer of insulating tape, and finally add another layer of insulating tape to seal.

C.First wrap it with insulating tape, then wrap it with a layer of waterproof tape, and finally add another layer of insulating tape to seal.

D.First wrap with waterproof tape, then wrap with a layer of insulating tape, and finally add another layer of waterproof tape to seal.

Question 43

The following are control frames

A.PS-Poll

B.Null

C.ACK

D.RTS/CTS

Question 44

Which statement about the management frame information element is correct is

A.Listen interval is the interval at which the dormant client must periodically wake up to listen to the Beacon

B.Association ID Association ID, each STA that successfully associates with the AP will be assigned an association ID number;

C.The default interval of Beacon interval is 100, the unit is milliseconds

D.TIM data pending indication is a series of bitmaps, each bit represents an associated user, 0 and 1 represent whether there is cached data

Question 45

Which of the following is the correct description of the room division system
Which of the following is the correct description of the principle of indoor distribution system combining is ______

A.According to the actual measurement experience, the wlan signal power of the antenna port in the indoor distributed system is ideal at about 10dBm, and the minimum is not lower than 5dBm. Generally, the transmit power of the wlan AP combining point is at least not lower than 3G/GSM/ CDMA signal power

B.It is generally not recommended to add a WLAN power amplifier behind the AP

C.The AP combining point must be at the level after the active device (mainly dry amplifier), because the active device cannot pass the wlan signal, and all wireless devices in the feeder-free system (including power dividers, cables, jumpers) etc.) must be able to support the WLAN frequency band (2.4GHZ~2.4835Ghz), and the attenuation control point is within a certain range.

D.Limited by the number of users, the number of antennas connected to a single AP is recommended not to exceed 15

E.The installation location of the AP should ensure that the Ethernet is reachable (less than 100 meters from the access switch), and it should be able to provide local power supply in the absence of a POE switch.

Other Version: 1773H3C.GB0-342-ENU.v2023-05-08.q109; 2311H3C.GB0-342-ENU.v2022-12-24.q120

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Question 41

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Question 43

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Question 45

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