When the channel interference of the 2.4 GHz band is large and severe, the device is adjusted to 3 channels, which can effectively reduce interference.
A. True
B. False
The following options are prerequisites for starting the Huawei load balancing function.
A. AP belongs to the same type
B. The AP is under the same AC management, and the signals between the APs overlap.
C. STA can scan APs that are load balanced with each other.
D. AP's output power setting is consistent
The AC performs a load balancing process based on the information.
A. The AP periodically sends information about the STA associated with it to the AC.
B. STA periodically reports the currently associated AP ID.
C. AC periodically queries the number of STAs associated with an AP.
D. STA periodically searches for the AP information and reports the AP ID through the associated AP.
Among the following options, the common source of WLAN interference is (Select 3 Answers).
A. Microwave oven
B. Remote control
C. C. Cordless telephone
D. Bluetooth transmission equipment
Metal objects have a greater attenuation of the wireless signal, and the AP or antenna should be placed behind a metal ceiling or the like.
A. True
B. False
Antennas are classified by direction and can be classified into antennas and antennas (Select 2 Answers).
A. plate shape
B. paraboloid
C. omnidirectional
D. orientation
The lobe width is a very important parameter commonly used in directional antennas. It refers to the angle between the antenna and the radiation pattern below the peak dB The width.
A. 3
B. 4
C. 5
D. 6
The gain of the antenna can be explained by .
A. The ability of the antenna to amplify high-frequency electrical signals
B. The ability of the antenna to collect or transmit electromagnetic waves in a certain direction
C. Amplification ability of electromagnetic waves
D. The ability of the antenna to collect or emit electromagnetic waves in all directions
In order to ensure that there is no interference between the channels of the WLAN network, which of the following bands belong to the Chinese 5.8GHz band (Select 2 Answers)?
A. 149
B. 151
C. 153
D. 155
The omnidirectional antenna exhibits a degree of on the horizontal pattern.
A. 90
B. 180
C. 360
D. 0
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