Which of the following wireless networks transmits data probably at 115 Kbps?

Question

Options

• AWLAN
• BWPAN
• CWMAN
• DWWAN

• A
  10% (2)
• B
  5% (1)
• C
  5% (1)
• D
  80% (16)

Explanation

WWAN (Wireless Wide Area Network) operates over cellular infrastructure (2G/2.5G technologies like GPRS), which transmits data at approximately 114–115 Kbps - making it the correct match for that speed.

Why the others are wrong:

• WLAN (Wi-Fi, 802.11x) is far faster, starting at 11 Mbps (802.11b) and reaching several Gbps on modern standards - orders of magnitude above 115 Kbps.
• WPAN (Bluetooth, Zigbee) covers very short ranges (~10m) but still achieves 1–3 Mbps, well above 115 Kbps.
• WMAN (WiMAX) covers city-scale areas at speeds measured in Mbps, not Kbps.

Memory tip: Think of coverage area as inversely related to speed in this context - WWAN covers the widest area (entire countries via cell towers) but historically had the slowest data rates because it relied on legacy cellular infrastructure. The "W" in WWAN standing for "Wide" can remind you it trades speed for reach.

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