TELECOMMUNICATIONS SYSTEMS
COMMUNICATION WIRELESS COMPUTING DEVICES
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
802.11a
|
|
|
802.11b
|
|
|
802.11n
|
|
|
802.11g
|
Detailed explanation-1: -The 802.11n standard also brought about faster theoretical data rates of up to 600 Mbps and supported both 2.4 and 5 GHz devices.
Detailed explanation-2: -The 802.11a standard offers more nonoverlapping channels per AP that clients can use: eight, vs. three for 802.11b. Since it operates at a higher frequency, though, 802.11a has a shorter range and requires more APs for a given coverage area.
Detailed explanation-3: -Best Speed and Range: 802.11ac The best compatible standard of Wi-Fi is 802.11ac as it has the fastest possible speed and the maximum range. This standard is so spectacular it is described to be on par with wired internet.
Detailed explanation-4: -Yes and no. By definition, the standard says absolutely yes. In reality, most networks are going to be configured in the name of performance tuning to skew away from total backward compatibility. Generally, 802.11b rates of 1, 2, 5.5 and 11 Mbps are disabled–but exceptions exist.