An engineer is performing a predictive wireless design for a medical treatment environment, which requires data and voice services. Which of the following is a requirement for the design?

Question

Options

• Aoverlapping -72 dBm coverage from two access points
• Boverlapping -67 dBm coverage from two access points
• Ccontinuous -67 dBm coverage from one access point
• Dcontinuous -72 dBm coverage from one access point

• A
  10% (3)
• B
  3% (1)
• C
  81% (25)
• D
  6% (2)

Explanation

Per Cisco's wireless LAN design guidelines, a voice deployment requires continuous -67 dBm coverage from at least one access point throughout the coverage area. This is the minimum signal threshold needed for reliable VoIP call quality on Cisco wireless phones. A medical treatment environment adds criticality (patient safety, no dropped calls) but does not change the baseline RF requirement - it still maps to the standard voice design threshold of -67 dBm continuous from one AP. The -72 dBm threshold applies to data-only designs. Overlapping from two APs (-67 dBm) is the requirement specifically for Cisco 7925 phones, but the general voice/data medical environment answer is continuous -67 dBm from one AP.

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