You are a wireless network administrator for a company that has installed a network that is based on Cisco WLC and uses Aironet 1140 Series APs.
The clients are using the 2.4 GHz band and WPA TKIP for Layer 2 security.
The president of the company reads a news article on the benefits of 802.11n and wants to deploy it at the office so that the company can use data rates of up to 150 Mb/s.
What should you tell the president?
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A. B. C. D. E. F.A.
The correct answer is F. 802.11n data rates are possible with the current client Layer 2 security, but for a theoretical data rate of 300 Mb/s, you need to use channel bonding.
Explanation:
The Aironet 1140 Series APs support 802.11n standard and can provide data rates up to 150 Mb/s when used with 2.4 GHz band. Therefore, the president's desire to deploy 802.11n in the office is valid.
However, to achieve a theoretical data rate of 300 Mb/s, channel bonding is required. Channel bonding is a feature of the 802.11n standard that allows the combination of two adjacent 20 MHz channels into a single 40 MHz channel. By doing this, the available bandwidth is increased, and higher data rates are possible.
Regarding the Layer 2 security policy, the current WPA TKIP is sufficient for 802.11n data rates. WPA2 AES is not necessary to achieve 300 Mb/s data rates. Therefore, answer A is incorrect.
The Aironet 1140 Series APs support data rates up to 300 Mb/s when used with 802.11n standard. Answer B is incorrect.
Changing the Layer 2 security to WPA2 TKIP or open is not required to achieve 802.11n data rates. Answer C and D are incorrect.
802.11n data rates are possible on both 2.4 GHz and 5 GHz bands. Therefore, answer E is incorrect.
In conclusion, the administrator should tell the president that 802.11n data rates are possible with the current client Layer 2 security, but for a theoretical data rate of 300 Mb/s, channel bonding is required.