GPEN Question #335: Real Exam Question with Answer & Explanation

The correct answer is B. Disabling SSID broadcast.. Disabling SSID broadcast reduces the management frame overhead on the wireless medium by suppressing periodic network advertisement beacons, freeing up a portion of WLAN bandwidth.

Question

Which of the following methods will free up bandwidth in a Wireless LAN (WLAN)?

Options

AImplement WEP.
BDisabling SSID broadcast.
CChange hub with switch.
DDeploying a powerful antenna.

Explanation

Disabling SSID broadcast reduces the management frame overhead on the wireless medium by suppressing periodic network advertisement beacons, freeing up a portion of WLAN bandwidth.

Common mistakes.

A. Implementing WEP adds per-frame encryption processing and overhead to each transmitted packet, which increases bandwidth consumption rather than reducing it.
C. Replacing a hub with a switch improves collision domain segmentation on wired Ethernet segments but has no direct effect on wireless LAN bandwidth.
D. Deploying a more powerful antenna extends the coverage range and signal strength of the WLAN but does not increase or free up channel bandwidth.

Concept tested. WLAN bandwidth management and SSID beacon overhead reduction

Reference. https://www.cisco.com/c/en/us/support/docs/wireless-mobility/wireless-lan-wlan/82082-hide-ssid.html

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