What is the primary cause of the link-layer delay?(a) Selection of appropriate protocol(b) Selection of routing path(c) Packet generation(d) Frame generationThe question was posed to me in exam.I want to ask this question from Next Generation Wireless Network topic in portion Next Generation Wireless Network of Cognitive Radio

What is the primary cause of the link-layer delay?(a) Selection of app

1.	What is the primary cause of the link-layer delay?(a) Selection of appropriate protocol(b) Selection of routing path(c) Packet generation(d) Frame generationThe question was posed to me in exam.I want to ask this question from Next Generation Wireless Network topic in portion Next Generation Wireless Network of Cognitive Radio
Answer» RIGHT choice is (a) Selection of appropriate protocol For explanation: Each spectrum band is assigned a different protocol with respect to the interference LEVEL, PATH loss, and wireless LINK errors of the band. The link-layer packet transmission delay differs with different protocols.

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