Free H12-311 Exam Braindumps
HCIA-WLAN V2.0 Questions 71–75 (page: 16)

Updated On: 10-Feb-2026

What are the technical advantages of 802.11n over 802.11a/b/g?

  1. Maximum theoretical transmission rate is increased to 600Mbps
  2. Downward compatible with 802.11a/b/g protocol
  3. Support MIMO technology
  4. The other three items are correct

Answer(s): C



Because 802.11a supports the same maximum rate as 802.11g supports, the 802.11a protocol is backward compatible with the 802.11g protocol.

  1. True
  2. False

Answer(s): B



Which of the following rates is not the rate supported by the 802.11a protocol?

  1. 6Mbps
  2. 12Mbps
  3. 24Mbps
  4. 30Mbps

Answer(s): D



A company wants to deploy WLAN. The company has purchased a number of wireless APs that support 802.11n. When the WLAN is deployed, only 802.11n wireless clients can connect to the company's WLAN.

  1. True
  2. False

Answer(s): B



What is the value used to record the Network Allocation Vector (NAV) in an 802.11 frame?

  1. Frame Control
  2. Duration
  3. address bit
  4. Sequence control bit

Answer(s): B



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