Your company is currently using a 5 ghz wireless security sy - CompTIA-N10-009
Question
Your company is currently using a 5 GHz wireless security system, so your boss has asked you to install a 2.4 GHz wireless network to use for the company’s computer network to prevent interference. Which of the following can NOT be installed to provide a 2.4 GHz wireless network?
Answers
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correct
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Explanation
Correct Answer: A. 802.11ac
- 802.11ac is designed exclusively for the 5 GHz frequency band and does not operate on the 2.4 GHz band. Therefore, it cannot be used to provide a 2.4 GHz wireless network.
Why the other options are correct:
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802.11g:
- Operates on the 2.4 GHz band with speeds up to 54 Mbps. It is backward compatible with 802.11b.
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802.11n:
- Operates on both 2.4 GHz and 5 GHz bands (dual-band). It supports speeds up to 600 Mbps with MIMO (Multiple-Input Multiple-Output) technology.
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802.11b:
- Operates solely on the 2.4 GHz band with speeds up to 11 Mbps. It is an older standard, often used in legacy systems.
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