Provide short answers to the following six questions. Your answers should be clear, concise and to the point. Prepare a single document (MS Word) along with title page and submit it online using Turnitin. Question 1: Signals travel through imperfect transmission media, describe in detail the three main causes of impairments. Answer MUST include how they affect different characteristics of signals including amplitude, phase and frequency. (5 Marks) Question 2: A host is sending a file from a PC using FTP. Explain the process the PC undertakes, between the time the application begins sending the file and the electrical signals leave the 100BaseT interface card. Make sure to clearly discuss what happens at each layer of the TCP/IP Model described in the textbook. (5 Marks) Question 3: Calculate the approximate bit rate and signal level(s) for a 3 MHz bandwidth system with a signal to noise ratio of 110? (5 Marks) Question 4: Compare the link local address to unique local address in IPv6. Discussion MUST include a comparison to private addresses in IPv4. (5 Marks) Question 5: Compare ICMPV4 and ICMPV6 protocols. Describe the different types of errors reported by the ICMPV6 Error-Reporting messages. (5 Marks) Question 6: What is a Decentralized P2P Network and how is it different from a centralized P2P network? List and describe the two different types of decentralized P2P network? (5 Marks)