CWNA Research & Evidence-Based Practice 3

Question 1

Which document type provides the most authoritative evidence when determining the maximum EIRP allowed for 5 GHz outdoor Wi-Fi in the United States?

Accepted Answer

FCC Part 15 regulations

Answer

FCC Part 15 is the federal regulatory authority governing unlicensed RF transmissions in the US, making it the definitive source for EIRP limits.

Question 2

A CWNA professional is asked to justify deploying 6 GHz Wi-Fi 6E instead of 5 GHz Wi-Fi 6. Which evidence best supports the 6 GHz recommendation?

Accepted Answer

Spectrum analysis showing heavy 5 GHz congestion and available 6 GHz channels

Answer

Spectrum analysis data demonstrating 5 GHz congestion and 6 GHz availability provides objective, measurable justification for the technology recommendation.

Question 3

When conducting a load test on a wireless network, which output metric provides the most actionable, evidence-based assessment of scalability?

Accepted Answer

Per-client throughput measurements at increasing client density

Answer

Measuring per-client throughput as client density increases directly reveals how the network scales and where performance degrades.

Question 4

A wireless analyst reads a peer-reviewed paper claiming a specific roaming algorithm reduces handoff latency. What is the most appropriate next step before adopting this finding?

Accepted Answer

Replicate the test conditions in the target environment to validate applicability

Answer

Research findings must be validated in the specific deployment environment because results may not generalize across different hardware, configurations, or RF conditions.

Question 5

Which statistical measure is most useful when analyzing RSSI samples collected across a large office floor during a passive site survey?

Accepted Answer

Mean and standard deviation of RSSI samples

Answer

Mean and standard deviation together describe the central tendency and variability of coverage, giving a complete statistical picture of signal quality distribution.

CWNA - Wireless Network Administrator Practice Test

CWNA - Wireless Network Administrator Practice Test

CWNA Research & Evidence-Based Practice 3