(b) Recall that when communicating data over a network, we first break it up into packets. There is a decision to be made about the size of the packets. Provide your thoughts on pros and cons of choosing a smaller packet size versus a larger packet size. [5 marks - word limit 100] (c) For each of the following statements, determine whether it is correct or incorrect. Support each of your answers with a brief explanation. (1) A router needs to also do modulation and demodulation. (ii) A router typically changes the source and destination MAC addresses of the dataframes that traverse it. (iii) At the physical layer, you can encode data in electric or electromagnetic waves but not sound waves. (iv) All packets of the same TCP session between a source and a destination traverse the same intermediate hops (that is, the same path) from the source to the destination. (V) HTTP is an application layer protocol that can be used for communication of HTML files, but not multimedia. [10 marks - word limit 150 (overall)]