CWTS, CWS, and CWT Complete Study Guide

Appendix Answers to Review Questions

Chapter 1: Computer Networking Fundamentals

1. C, E. Wireless LAN technology operates at Layers 1 and 2 of the OSI model. The Session layer opens, closes, and manages sessions between end-user application processes. The Network layer is responsible for addressing and routing functions of data, and the Application layer is the interface to the user.
2. C. The bus topology is also known as a high-speed linear bus and was commonly used with early IEEE 802.3 networks. The ring topology is rarely used with LANs today but still widely used by Internet Service Providers (ISPs) for high-speed, resilient backhaul connections over fiber-optics link. A mesh topology is where each device in the mesh network has one or ...