This document presents a comprehensive solution to a wireless networks assignment, addressing various aspects of networking and communication. The solution begins with an overview of TCP/IP protocols, differentiating between the IP and network access layers, and discussing their reliability. It then explores data transmission scenarios, signal analysis, and frequency calculations. The assignment further delves into the relationship between data rate and bandwidth, the comparison of circuit and packet switching, and concludes with calculations for antenna heights. The document provides detailed answers to each question, including formulas, graphs, and explanations, making it a valuable resource for students studying wireless networks and communication.