CWNA Research & Evidence-Based Practice 2

Question 1

A wireless engineer wants to validate throughput claims made by a vendor for an 802.11ax AP. Which methodology provides the most evidence-based comparison?

Accepted Answer

Conduct controlled lab tests using RFC 2544 or similar reproducible benchmarks

Answer

RFC 2544 and similar standardized benchmarks provide reproducible, controlled conditions that allow objective comparison of vendor claims.

Question 2

When reviewing a site survey report, which data source best supports evidence-based conclusions about channel utilization?

Accepted Answer

Spectrum analyzer captures taken at multiple locations and times

Answer

Spectrum analyzer captures provide objective, quantitative RF data that directly measures channel utilization across the environment.

Question 3

A CWNA candidate reads an IEEE 802.11 amendment. What is the primary purpose of referencing the IEEE standard rather than a third-party summary?

Accepted Answer

IEEE standards are the authoritative technical specification and prevent misinterpretation

Answer

IEEE 802.11 standards are the definitive technical specifications, ensuring that design and troubleshooting decisions are based on accurate, primary-source information.

Question 4

Which metric, collected during a predictive site survey, should be validated with a physical (passive) survey to ensure evidence-based deployment?

Accepted Answer

Estimated RSSI coverage contours

Answer

Predictive surveys use modeled RSSI estimates that must be validated with real-world passive survey measurements to confirm actual RF propagation.

Question 5

A wireless team uses historical packet captures to investigate a recurring authentication failure. This approach best represents which research practice?

Accepted Answer

Evidence-based root-cause analysis using primary data artifacts

Answer

Packet captures are primary data artifacts that allow systematic, evidence-based analysis of authentication exchange failures.

CWNA - Wireless Network Administrator Practice Test

CWNA - Wireless Network Administrator Practice Test

CWNA Research & Evidence-Based Practice 2