Questions on data communication/computer networks.

You are working for an engineering company which has two offices that are 5000 km apart. The offices are connected by fiber with a single router. The router has a queuing delay of 1 ms per frame and processing delay of 0.5 ms per frame. The connection speed between the two offices is 10 Mbps. The company would like to transfer 100 GB of files to the other office. Each frame always has a 100 byte header with a variable payload size of 0 - 1400 bytes. Assume the speed of light is c = 2.0 times 10^8 m/s. Determine the following: (a) The number of frames required to transfer the files. (b) The amount of time required to transfer the files taking in to account propagation delay, transmission delay, queuing delay, and processing delay. The Request for Comments (RFC) documents define and standardize the bulk of the protocols used in the Internet. They are published on behalf of the Internet Engineering Task Force (IETF), which forms the main standards body of the Internet. Search the IETF site for RFC1149, which was an April Fool's RFC written to describe IP transport over avian carriers. Once you find the document, read it and answering the following: (a) When was the RFC written? (b) Describe the frame format and transport method. (c) What can cause data loss? (d) How is security of the data handled? For the given function, find the Fourier coefficients (a_n, b_n, and c). Note that the correct answer should not contain any sine or cosine functions. f(x) = x^2, -2