Free Access CWNP.CWNA-108.v2023-07-17.q81 Practice Test (Page 9)

You are performing a post implementation validation survey. What basic tool can be used to easily locate areas of high co-channel interference?

A.Throughput tester

B.Access point spectrum analyzer

C.Wi-Fi scanner

D.Laptop-based spectrum analyzer

What statement is true concerning the use of Orthogonal Frequency Division Multiplexing (OFDM) modulation method in IEEE 802.11 WLANs?

A.OFDM implements BPSK modulation to allow for data rates up to 7 Gbps.

B.OFDM was first introduced in 802.11a and is used by the ERP, HT and VHT PHYs as well.

C.OFDM modulation is used only in 5 GHz 802.11 transmissions.

D.OFDM was used by Frequency Hopping Spread Spectrum (FHSS) PHY devices.

A dual-band 802-1 lac AP must be powered by PoE. As a class 4 device, what power level should be received at the AP?

A.25. 5W

B.12.95 W

C.15.4 W

D.30 W

What statement is true concerning the use of Orthogonal Frequency Division Multiplexing (OFDM) modulation method in IEEE 802.11 WLANs?

A.OFDM implements BPSK modulation to allow for data rates up to 7 Gbps.

B.OFDM was first introduced in 802.11a and is used by the ERP, HT and VHT PHYs as well.

C.OFDM modulation is used only in 5 GHz 802.11 transmissions.

D.OFDM was used by Frequency Hopping Spread Spectrum (FHSS) PHY devices.

What is a channel mode specified by the 802.11n (High Throughput) PHY?

A.80 MHz

B.20/40 MHz

C.22 MHz

D.Frequency Hopping

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