b. Convert the following dotted decimal IP address into binary

237.63.198.43

c.In an optical bre, the power drops by a factor of 10 approximately every 30 km. If the transmit power is 0.35 W, how far will a signal be transmitted before the power is attenuated to 350 W?

As part of your answer, include a table showing the signal power (in W) vs. distance in 30 km intervals.

If a high-quality coaxial cable (LDF5-50A) operating at 200 Mbps is used instead of an optical fibre, how would you expect the calculated distance value to change? Briefly explain your answer.

You are not required to include another table.

d.Express the following 48-bit binary MAC address in hexadecimal.

10101001 11111000 10110111 01011101 11100011 01101100