CWNA case studies
CWNA · Put your knowledge to work in context.
The Certified Wireless Network Administrator (CWNA) is the foundational enterprise Wi-Fi certification in the CWNP program and the entry point to CWNP's vendor-neutral certification path. It validates that a candidate understands the fundamentals of wireless technology, how WLANs work, how they are managed day to day, and whether the candidate can install, configure, troubleshoot, and maintain wireless networks in small business or enterprise deployments. The CWNA case studies are 5 cases and about 3,492 words.
1Bonding to 40 MHz Next to a Loud Neighbour
A 5 GHz WLAN serves an open-plan office of 60 workstations. The AP runs a 20 MHz channel at 17 dBm into an 8 dBi omnidirectional antenna, and the farthest desk measures -70 dBm RSSI.
643 words, about 3 min2An 8 km Bridge with Trees in the Fresnel Zone
A utility company needs a 5.8 GHz point-to-point bridge between two substations 8 km apart. Each end uses a 24 dBi parabolic grid with 2.5 dB of cable and connector loss, fed by a radio transmitting 20 dBm.
650 words, about 3 min31,200 Seats, 2,400 Devices, and a 4-AP Pilot
A 1,200-seat auditorium hosts a conference where each attendee carries a laptop and a phone. The organiser has contracted for 1 Mbps of usable throughput per device.
642 words, about 3 min4A Shared Passphrase, a Travel Router, and 40 Scanners
A 300-employee firm runs a single WPA2-Personal SSID. The 20-character passphrase is printed on a card in the lobby and has not changed in three years.
799 words, about 4 min5Strong Signal, 40% Retries in the Distribution Centre
A 46,000 m² distribution centre is served by 38 APs on 2.4 GHz only, because the voice-picking handhelds are 802.11b/g. The APs are ceiling-mounted omnidirectionals at 20 dBm on channels 1, 6 and 11.
758 words, about 4 min