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Exam CWNA-108 topic 1 question 64 discussion

Actual exam question from CWNP's CWNA-108
Question #: 64
Topic #: 1
[All CWNA-108 Questions]

You are reconfiguring an AP to use the short guard interval for 802.11ac. How long will the new guard interval duration be after the change?

  • A. 800 ms
  • B. 400 ns
  • C. 400 ms
  • D. 800 ns
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Suggested Answer: B 🗳️
by Alonzo_Harris at Dec. 8, 2023, 5:13 a.m.

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Alonzo_Harris
1 year ago
Selected Answer: B
The HT PHY introduced two guard intervals: 400ns (called short) and 800ns (called long). Support of the 400ns SGI (Short Guard Interval) is optional for transmit and receive. LGI (Long Guard Interval) would be 800ns so the answer is 'B'. CWNA-108 pg 289
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