CWNA-106 Practice Test

What is always required to establish a high quality 2.4 GHz RF link at a distance of 3 miles (5
kilometers)?

 

A.

Minimum output power level of 2 W

B.

Accurate Earth Bulge calculations

C.

Grid antennas at each endpoint

D.

A minimum antenna gain of 11 dBi at both endpoints

E.

A Fresnel Zone that is at least 60% clear of obstructions

What phrase defines Equivalent Isotropically Radiated Power (EIRP)?

A.

The power output from the radio into the RF cable

B.

The power output from the radio after cable losses

C.

The highest RF signal strength that is transmitted from a given antenna

D.

Reflected power due to an impedance mismatch in the signal path

E.

Power supplied from the transmission line to the antenna input

What term describes the effect of increasing the intensity of an RF wave with an antenna by
focusing the energy in a specific direction?

A.

Distributed Radiation

B.

Active Amplification

C.

Beam Compression

D.

Passive Gain

E.

RF Flooding

Which antenna types are commonly used by indoor Wi-Fi devices in a MIMO diversity
implementation? (Choose 2)

A.

Dipole

B.

Patch

C.

Dish

D.

Grid

E.

Sector

What phrase correctly completes the following sentence?
When using WMM Power Save operation, a wireless client device ______________.

A.

Alternates between awake and dozing, depending on its need to transmit and receive
information

B.

Enters a low-power radio state until it receives a WMM PS-Poll frame from the AP

C.

Experiences higher throughput and lower latency than when operating in Active mode

D.

Powers down a subset of MIMO radio chains and transmits information at a slower data rate

E.

Buffers frames destined to the low-power AP until the AP wakes its radio and begins beaconing
again