Practice Quiz

CompTIA Security+ Exam Prep

Category - Security

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Which of the following protocols operates on 2.4GHz and has a bandwidth of 1Mbps or 2Mbps?
  1. 802.11g
  2. 802.11a
  3. 802.11b
  4. 802.11
Explanation
Answer - D - 802.11 operates at 2.4GHz and allows for bandwidths of 1Mbps or 2Mbps.

Key Takeaway: 802.11 is the original version of the standard IEEE 802.11. Released in 1997, it specified two net bit rates of 1 or 2 Mbit/s, in addition to a forward error correction code. It specified three alternative physical layer technologies: diffuse infrared operating at 1 Mbit/s, frequency-hopping spread spectrum operating at 1 Mbit/s or 2 Mbit/s, and direct-sequence spread spectrum operating at 1 Mbit/s or 2 Mbit/s. It is almost obsolete now.
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