Review 2 Chapters 7, 8, 9

2  Define a network and its purpose.  Explain how communications technologies are used in our every day lives.  Understand the various topologies and architectures a computer network might use.  Explain the difference between a LAN, a WAN, and a PAN, and between an intranet, an extranet, and the Internet.  Name specific types of wired and wireless transmission media and explain how they transmit data.  Understand what protocols are and what they do.  List several types of networking hardware and explain the purpose of each. Chapter 7

3  Discuss how the Internet evolved and what it is like today.  Describe device and connection options for connecting to the Internet, as well as some considerations to keep in mind when selecting an ISP.  Understand how to effectively search for information on the Internet.  Explain several different types of applications other than web browsing and that require the internet in order to function.  Discuss censorship and privacy and how they are related to Internet use. Chapter 8

4  Explain why computer users should be concerned about network and Internet security.  List several examples of unauthorized access, unauthorized use, and computer sabotage.  Explain how access control systems, firewalls, antivirus software, and encryption protect against unauthorized access, unauthorized use, and computer sabotage.  Discuss online theft, identity theft, Internet scams, spoofing, phishing, and other types of dot cons. Chapter 9