CWS CWS Site Survey Fundamentals 4

Question 1

During a site survey, which measurement is used to evaluate the RF channel's ability to support high data rates under real traffic conditions?

Accepted Answer

Retry rate and frame error rate under load

Answer

Retry rate and frame error rate under actual traffic load reveal real-world channel quality that static RSSI measurements cannot capture.

Question 2

A CWS is asked to design a high-density venue (e.g., a stadium). Which AP placement strategy is MOST appropriate?

Accepted Answer

Use many low-power APs with directional antennas aimed at seating sections

Answer

High-density environments require many cell-splitting APs with reduced power and directional antennas to serve large numbers of clients in small, defined areas.

Question 3

What is the purpose of a 'coverage overlap' requirement of 15–20% between adjacent APs in an enterprise Wi-Fi design?

Accepted Answer

To allow clients to roam without losing connectivity between cells

Answer

A 15–20% overlap zone ensures a client always has a strong signal from at least two APs, enabling seamless roaming handoffs without coverage gaps.

Question 4

Which factor has the GREATEST impact on 5 GHz signal attenuation compared to 2.4 GHz in office environments?

Accepted Answer

Higher frequency signals experience greater material penetration loss through walls

Answer

Higher frequencies lose more energy when passing through building materials, meaning 5 GHz signals attenuate more rapidly than 2.4 GHz through walls and floors.

Question 5

When documenting a site survey, which data should ALWAYS be included in the final deliverable?

Accepted Answer

Floor plans with AP placement, channel assignments, RSSI heatmaps, and identified interference sources

Answer

A complete site survey report includes annotated floor plans, AP locations, channel plans, RSSI/SNR heatmaps, and documentation of any interference sources found.

CWS Exam Practice Test

CWS Exam Practice Test

CWS CWS Site Survey Fundamentals 4