300-430 Question #262: Real Exam Question with Answer & Explanation

The correct answer is C: 4. For optimal RFID tag tracking with 802.11 b/g monitor-mode APs, Cisco recommends scanning 4 channels to maximize detection coverage and location accuracy.

Question

Refer to the exhibit. An enterprise uses 802.11 b/g APs and must track the RFID tags within the network. How many channels must be used to maximize the optimization of the monitoring and tracking of the tags?

Exhibit

Options

Explanation

For optimal RFID tag tracking with 802.11 b/g monitor-mode APs, Cisco recommends scanning 4 channels to maximize detection coverage and location accuracy.

Common mistakes.

A. Monitoring only 1 channel provides extremely limited RF coverage and would miss RFID tag transmissions occurring on any other channel.
B. 3 channels correspond to the standard non-overlapping set (1, 6, 11) but Cisco's RFID optimization guidance specifies 4 channels for maximum tag tracking performance.
D. Scanning all 11 channels introduces heavily overlapping channel coverage, which degrades tracking efficiency and location accuracy rather than optimizing it.

Concept tested. RFID tag tracking channel optimization with 802.11 b/g monitor APs

Reference. https://www.cisco.com/c/en/us/td/docs/wireless/mse/3350/8-0/Context_Aware_Software_Configuration_Guide/b_MSE_CAS_8_0.html

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