Exam 300-425 topic 1 question 181 discussion

Cisco guide: Location Deployment Model Ideally, a wireless design should have enough APs distributed across the covered area such that a signal from any device location can be received by at least three APs.

For accurate location tracking, Cisco recommends that each location-ready AP be heard by at least four other APs at a signal level of -75 dBm or better. This ensures sufficient RF triangulation for accurate client positioning, as at least three APs are needed for 2D location, but a fourth AP improves accuracy and reliability. This design principle enhances the precision of location-based services, such as asset tracking or location analytics.

Hyperlocation Basic Rule: Deploy minimum of 4xAP on each floor so answer is A. three APs

3 APs for triangulation but it asks how many APs can one AP see. Not how many APs a client can see. Each AP must see 2 others (for a total of 3), or we assume a client at that location can't see 3 APs.

3 aps for location

If its a client then its 3 AP's for triangulation, but if its an AP with say NDP packages, then the answer must be 2, as it again takes 3 AP's in total for triangulation. It almost feels like a trick question with that choice of wording.

3 Aps. This is text from Cisco certification guide: If location-based services are required, your design goal should be to provide good RF coverage and an effective AP layout. APs should be positioned such that multiple APs can receive a signal from a device to be located. A minimum of three APs should be able to receive a client’s signal, while four or more APs are preferred. You should think of every possible client location having at least one AP in each surrounding quadrant. To derive a fairly accurate location, multiple APs must receive the client device or tag at an RSSI above a minimum signal level of –75 dBm. When you perform a site survey, you should use a threshold of –72 dBm, which will give a 3 dB buffer over the absolute minimum.

D. at least four APs >>> To ensure precise location tracking, location-based services often require a minimum of four access points to be within the hearing range of each location-ready AP at a signal level of -75 dBm or better. This allows for more accurate triangulation of the AP's position, which is crucial for precise location-based services.

strange question. -75dBm is the requirement for the tracking device to be head by at least three APs. Not about APs hearing each other.