Which of the following standards is used in wireless local area networks (WLANs)?

Question

Options

• AIEEE 802.4
• BIEEE 802.3
• CIEEE 802.5
• DIEEE 802.11b

• A
  11% (4)
• B
  3% (1)
• C
  3% (1)
• D
  83% (30)

Explanation

IEEE 802.11b is an extension of the 802.11 standard. It is used in wireless local area networks (WLANs) and provides 11 Mbps transmission speeds in the bandwidth of 2.4 GHz. Answer: B is incorrect. IEEE 802.3 is a standard for wired networks , which defines the media access control (MAC) layer for bus networks that use CSMA/CD. Answer: A is incorrect. IEEE 802.4 is a standard for wired networks , which defines the MAC layer for bus networks that use a token- passing mechanism. Answer: C is incorrect. IEEE 802.5 is a standard for wired networks, which defines the MAC layer for token-ring networks.

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