Chapter 1: Introduction to Data Communications and Computer Networks Table of Contents Review Questions Answers .........................................................................................................1 Hands-On Project Solutions ........................................................................................................6 Reflection Discussion 1 Rubric ....................................................................................................7 Review Questions Answers 1. You are sitting at the local coffee shop, enjoying your favorite latte. You pull out your laptop and, using the wireless network available at the coffee shop, access your email. Which portion of the electromagnetic spectrum is your laptop most likely using? a. Ultraviolet waves b. Visible light waves c. Radio waves d. X-rays Answer: c. Radio waves Explanation: Wireless computer networks use different kinds of low energy radiation below the visible light spectrum and can involve broadcast radio, microwaves, or infrared transmissions. 2. Which of the following characteristics distinguishes a PAN from other types of networks? a. A printer is connected to the network. b. The network is intended to be used by one person at a time. c. The network supports wearable devices. d. The network is small in geographical coverage. Answer: b. The network is intended to be used by one person at a time. Explanation: Networks spanning an area of a few centimeters to several meters around an individual are called PANs (personal area networks) and are typically used by one person at a time. 3. When you set up a network at your home with a home router, a few computers, a printer, multimedia devices, and your smartphone, which of the following statements is true? a. You can have several PANs, you have one LAN, and you probably have one WAN connection. b. You can have several LANs, you have one PAN, and you probably have one WAN connection. c. You can have several WANs, you have one MAN, and you probably have one LAN connection.