ACP Assessment & Evaluation Techniques 2 — Questions and Answers
Question 1: During an Aruba wireless site survey, which metric best indicates co-channel interference between APs on the same channel?
- RSSI value below -70 dBm
- Channel utilization above 50%
- Signal-to-Interference-plus-Noise Ratio (SINR) below 20 dB (Correct answer)
- Retry rate below 5%
Correct answer: Signal-to-Interference-plus-Noise Ratio (SINR) below 20 dB
SINR below 20 dB indicates significant co-channel interference that degrades wireless performance.
Question 2: When evaluating Aruba AP placement using AirWave, which report type provides historical channel utilization trends over a 30-day period?
- RF Health Report
- Client Match Report
- Capacity Planning Report (Correct answer)
- Rogue Detection Report
Correct answer: Capacity Planning Report
The Capacity Planning Report in AirWave tracks historical channel utilization to help forecast future AP placement needs.
Question 3: An Aruba network engineer is assessing client roaming performance. Which Aruba feature should be evaluated to determine if clients are being proactively moved to better APs?
- ARM (Adaptive Radio Management)
- Client Match (Correct answer)
- AppRF
- AirSlice
Correct answer: Client Match
Client Match proactively steers clients to better APs based on real-time RF conditions and client capabilities.
Question 4: Which Aruba Central dashboard widget should a network administrator use to evaluate the percentage of clients experiencing poor SNR?
- Client Count widget
- RF Health widget (Correct answer)
- Application Usage widget
- Security Events widget
Correct answer: RF Health widget
The RF Health widget in Aruba Central displays SNR distribution across clients, highlighting those with poor signal quality.
Question 5: When performing a post-deployment validation of an Aruba WLAN, which tool is used to conduct an active survey that measures actual throughput to the AP?
- Ekahau Site Survey (Correct answer)
- Aruba Activate
- Aruba ALE
- NetEdit
Correct answer: Ekahau Site Survey
Ekahau Site Survey performs active surveys that measure real throughput, latency, and packet loss to verify post-deployment performance.
Question 6: An Aruba administrator notices high retry rates on 2.4 GHz. Which evaluation step should be performed FIRST?
- Upgrade AP firmware
- Analyze the RF spectrum for non-Wi-Fi interference sources (Correct answer)
- Increase transmit power on all APs
- Enable band steering
Correct answer: Analyze the RF spectrum for non-Wi-Fi interference sources
High retry rates on 2.4 GHz often result from non-Wi-Fi interference (e.g., microwaves, Bluetooth), so spectrum analysis should be the first diagnostic step.
Question 7: In an Aruba ClearPass assessment, which endpoint posture check verifies that a connecting Windows device has an up-to-date antivirus signature?
- OnGuard Agent Health Check (Correct answer)
- Guest Device Registration
- Device Fingerprint Policy
- NAC Role Mapping
Correct answer: OnGuard Agent Health Check
The ClearPass OnGuard Agent performs posture assessments including antivirus version and signature currency checks on Windows endpoints.
ACP Assessment & Evaluation Techniques 2
During an Aruba wireless site survey, which metric best indicates co-channel interference between APs on the same channel?