CWDP CWDP Antenna Design and Placement

Question 1

Which antenna type radiates energy equally in all horizontal directions, making it ideal for open-office deployments?

Accepted Answer

Omnidirectional

Answer

Omnidirectional antennas radiate in a 360-degree horizontal pattern, providing even coverage in open areas.

Question 2

What does 'antenna gain' measure in the context of WLAN design?

Accepted Answer

Concentration of radiated energy in a specific direction

Answer

Antenna gain measures how much energy is focused in a particular direction compared to a reference antenna.

Question 3

A CWDP designer needs to cover a long narrow hallway. Which antenna type is most appropriate?

Accepted Answer

Yagi directional

Answer

A Yagi antenna's narrow, high-gain beam pattern is well-suited for long, narrow spaces like hallways.

Question 4

What is the primary effect of antenna downtilt in a multi-floor building deployment?

Accepted Answer

Reduces co-channel interference on adjacent floors

Answer

Downtilting an antenna directs the main lobe toward the intended coverage area, limiting signal bleed to other floors.

Question 5

Which polarization mismatch scenario results in the greatest signal loss?

Accepted Answer

One vertical and one horizontal polarization

Answer

A 90-degree polarization mismatch between transmitter and receiver can cause up to 20 dB of signal loss.

Certified Wireless Design Professional (CWDP) Practice Test