Incredible CertsChief CWNP CWNA-107 Exam

by Jessica Fay IT Certification

Question: 1

 

An RF signal sometimes bends as it passes through some material other than free space. What is the term that describe this behavior?

 

A. Reflection

B. Refraction

C. Scattering

D. Warping

 

Answer: B   

 

Question: 2

 

What can an impedance mismatch In the RF cables and connectors cause?

 

A.  Fewer MCS values In the MCS table

B.  Excessive VSWR

C.  Increased amplitude of the RF signal

D. Increased range of the RF signal

 

Answer: B   

 

Question: 3

 

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   

 

Question: 4

 

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   

 

Question: 5

 

In a long-distance RF link, what statement about Fade Margin is true?

 

A. Fade Margin is an additional pad of signal strength designed into theRF system to compensate for unpredictable signal fading.

B. The Fade Margin of a long-distance radio link should be equivalent to the receiver’s antenna gain.

C. A Fade Margin is unnecessary on a long-distance RF link if more than 80% of the first Fresnelzone is clear of obstructions.

D. The Fade Margin is a measurement of signal loss through free space, and is a function of frequency and distance.

 

Answer: A   

 

Question: 6

 

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   

 

Question: 7

 

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   

 

Question: 8

 

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   

 

Test Information:

Total Questions:  90

Test Number: CWNA-107

Vendor Name: CWNP   

Cert Name: CWNA

Test Name:   Certified Wireless Network Administrator

Official Site: https://www.certschief.com/

For More Details: https://www.certschief.com/exam/cwna-107/         

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Created on Dec 28th 2017 04:42. Viewed 409 times.

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