The introduction of consumer phones and tablets into enterprise WLANs can have an impact on 802.11a/b/ g/n deployments. The Apple iPhone 4 and iPad 2 are very common examples. Which statement best describes the abilities of these devices?
A.
The Apple iPhone 4 and the iPad 2 use 2.4 GHz and 5 GHz. The Apple iPhone 4 uses only one spatial stream and the iPad 2 uses two spatial streams.
B.
The Apple iPhone 4 uses only 2.4 GHz and the iPad 2 only uses 5 GHz. The Apple iPhone 4 uses only one spatial stream and the iPad 2 uses two spatial streams.
C.
The Apple iPhone 4 uses 2.4 GHz and the iPad 2 uses 2.4 GHz or 5 GHz. The Apple iPhone 4 only uses one spatial stream and the iPad 2 uses two spatial streams.
D.
The Apple iPhone 4 uses 2.4 GHz and the iPad 2 uses 2.4 GHz or 5 GHz. The Apple iPhone 4 and the iPad 2 use only one spatial stream.
Suggested Answer:D🗳️
The apple iPhone 4 and iPAD2 supports only 2.4 Ghz (no 5 Ghz) wireless networks. Support for 5Ghz networks was introduced with the Apple iPhone5 and the iPAD 3.
https://wifitodd.com/2018/04/05/wifi-ios-and-osx-specifications-and-cisco-best-practice-references/
D is correct but the explanation is wrong / does not match.
The Ipad 2 supports 2.4ghz or 5ghz N, with one spatial stream.
The Iphone 4 supports only 2.4ghz with one spatial stream.
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5 years, 10 months ago