Match the following to one or more layers of the OSI model

Reliable process to process message delivery

Route selection

Define frames

What is the length of a bit in a channel with a propagation speed of $2$ times $\frac{[10{]}^{{?}^{?}}8m}{s}$

if the channel bandwidth is

i$.1Mbps$

ii$.10Mbps$

iii. $100Mbps$

We have a channel with $4KHz$ bandwidth. If we want to send at $100Kbps,$ what is the

minimum $[$SNR$]dB?$ What is SNR$?$