An engineer is performing a predictive wireless design for a Parts Distribution Center, which requires data and location services. Which three requirements are inputs to the design? (Choose three.)

Question

Options

• Aaccess points with directional antennas
• Bcontinuous -67 dBm coverage from one access point
• Coverlapping -75 dBm coverage from three access points
• Doverlapping -67 dBm coverage from two access points
• Eaccess points in IPS mode
• Fcontinuous -72 dBm coverage from one access point
• Gaccess points in corners and along perimeters

• A
  2% (1)
• B
  77% (33)
• D
  7% (3)
• E
  2% (1)
• F
  12% (5)

Explanation

A Parts Distribution Center requires both data and location services, which drives three specific design inputs. Continuous -67 dBm from one AP (B) satisfies the data coverage requirement - this is the Cisco minimum threshold for reliable data connectivity. Overlapping -75 dBm from three APs (C) satisfies the location services requirement - the Cisco location engine needs at least three APs to hear a device simultaneously (at -75 dBm or better) to calculate an accurate position. APs in corners and along perimeters (G) is the recommended placement strategy for maximizing location accuracy, as it creates triangulation geometry around the target area. Directional antennas (A) and IPS mode (E) are not standard requirements for this use case, and -72 dBm (F) is the data-only threshold, insufficient for location.

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