Question 1

What are the general methods for solving co-channel interference (ABD) (Select 3 Answers).

AAdjust AP transmit power and adjust antenna feed

BReasonable frequency reuse to ensure that the same channel does not appear in the same or adjacent coverage area

CMulti-directional coverage using omnidirectional antennas

DNatural isolation using obstacles

Answer : A, B, D

Question 2

When the two-channel center frequency distance is less than or equal to 25 MHz, there is an overlapping area between the channels, and there may be some interference. Therefore, in order to avoid adjacent channel interference in adjacent area channel planning, the same channel is not allowed.

ATrue

BFalse

Answer : B

Question 3

The common reason why an AP cannot obtain an IP address is (ABC) (Select 3 Answers).

AThe address pool is incorrectly configured.

BThe address pool is exhausted.

CIntermediate network problems.

DPOE power failure.

Answer : A, B, C

Question 4

For the polarization of electromagnetic waves, the following description is correct (Select 3 Answers).

AThe antenna radiates electromagnetic waves to the surrounding space, and the direction of the electric field changes according to a certain law.

BThe polarization of the antenna refers to the direction of the magnetic field strength formed by the antenna radiation.

CIf the electric field of the electric wave is perpendicular to the ground, we call it a vertically polarized wave.

DIf the transmitting antenna is circularly polarized, the receiving antenna must also be circularly polarized, and both polarization directions must be the same

Answer : A, B, D

Question 5

To avoid reconfiguration of data when an AP on the network is faulty, you can quickly replace APs by configuring AP replacement.