In Internet of Things $($IoT$),$ power and delay are the main concern issues. In Figure Q$4$ below, assuming that C$=3$x$108$ m$/$s and the refractive index for the fibre is n$=1\mathrm{.}5,$ the distance from A to C is $100$ m and from C to D is $1$ km$,$ dproc $=1$ ms$,$ dqueue $=0\mathrm{.}1$ ms and dtrans $=0\mathrm{.}5$ ms$.$ Assuming the transmitted power from A is $10$ mw and the attenuation for the wireless is $5$dB$/$km and for the fibre is $0\mathrm{.}1$dB$/$km$.$ Calculate the following: $1-$ The delay from A to D through C assuming A to C is connected wirelessly and C to D is connected via a fibre. $2-$ Calculate the received power at D assuming no losses at both router C and D$.$