Respuesta :
Option c is correct. 802.19 is the open standard for tagging layer 2 frames. The IEEE 802 LAN/MAN Standards Committee's Technical Advisory Group (TAG) on Wireless Coexistence is known as 802.19.
Coexistence across unlicensed wireless networks is a topic covered by the TAG. Since several IEEE 802 wireless standards use unlicensed spectrum, coexistence is a problem that needs to be addressed.
The same unlicensed frequency band may be used by these unlicensed wireless devices in the same area. These two wireless networks may become hampered as a result.
If two unlicensed wireless networks can function side by side without seriously interfering with one another, that situation is referred to as coexistence. The coexistence of IEEE 802.11 and Bluetooth, both of which operate in the 2.4 GHz ISM frequency region, was one of the earliest instances of wireless coexistence.
The IEEE 802.15 Task Group 2[2] addressed coexistence between these two wireless networks and created a Recommended Practice on Coexistence of IEEE 802.11 and Bluetooth.
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