Q-1:The following matters were not addressed specifically in the text. However, if you understand the concepts of Layer 1 and Layer 2 standards, in each case, give your answer and explain your reasoning.

a) Is multipath interference a Layer 1 or Layer 2 concern?

b) Is media access control a Layer 1 or Layer 2 concern?

c) Are wireless propagation problems Layer 1 or Layer 2 concerns?

d) Is 802.11ac a Layer 1 or Layer 2 standard?

e) Is 802.11r a Layer 1 or Layer 2 standard?