first answer gets thumbs up and has to be correct. ty.

In the TCP/IP protocol suite, the data link layer handles frames between adjacent nodes. (b) A fully connected mesh topology has a diameter of I. (c) In a packet-switched internet using TCP/IP protocol suite to transfer a huge file, sending large packets will increase the overhead. (d) The bandwidth of a composite signal is the difference between the highest frequency contained in that signal and the zero frequency. The decomposition of a periodic composite signal gives a series of signals with continuous frequencies. (e)