[2018 Testpassport New] CWNA Certification CWNA-107 practice exam

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Share some CWNA Certification CWNA-107 exam questions and answers below.

What statements about the beamwidth of an RF antenna are true?

A. Horizontal and vertical beamwidth are calculated at the points in which the main lobe decreases power by 3 dB

B. Vertical beamwidth is displayed (in degree) on the antenna’s Azimuth chart.

C. When antenna gain is lower, the beamwidth is also lower in both the horizontal and vertical dimensions.

D. The beamwidth patterns on an antenna polar chart indicate the point at which the RF signal stops propagating.

Answer: A

Which directional antenna types are commonly used by indoor Wi-Fi devices in a MIMO multiple spatial stream implementation?

A. Dish and grid

B. Dipole and yagi

C. Grid and sector

D. Patch and panel

Answer: B

A WLAN transmitter that emits a 50 mW signal is connected to a cable with 3 dB loss.If the cable is connected to an antenna with 9 dBi gain, what is the EIRP at the antenna element?

A. 23 dBm

B. 26 dBm

C. 13 dBm

D. 10 dBm

Answer: A

What factors does not influence the distance at which an RF signal can be effectively received?

A. Free Space Path Loss

B. Receiving station’s radio sensitivity

C. Transmitting station’s output power

D. Receiving station’s output power

Answer: D

What wireless networking term describe the increase of RF energy in an intentional direction with the use of an antenna?

A. Directed Radiation

B. Active Amplification

C. Passive Gain

D. Beam Digression

Answer: C

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