Wednesday, March 25, 2009

Chapter 22 ?s

Answer the following concerning CHAPTER 22:
  • What is the most famous WAN?
  • Who maintains it?
  • How many bits are in an IP address?
  • How many host are possible in a class A network?
  • How many networks are available in a class B network?
  • How many hosts are possible in a class C network?
  • Why are subnets created?
  • What is a privat network?
  • Define .com
  • Define .net
  • Define .org
  • Define .edu
  • What do DNS servers accomplish?
  • What are the 5 internet access methods presented in this chapter?
  • What is the technology that enables a LAN to connect to the internet by using a single IP address?
  • What is the big difference between the ordinary phone network and the way that VoIP phones work?
  • What are the 3 implementations of VoIP?
  • Define TCP/IP.
  • Who developed TCP/IP?
  • What happens to data which was sent using TCP/IP if it becomes fragmented and out-of-order?
  • Define WINS.
  • Define DHCP. List 3 settings which are set by DHCP.
  • Define ARP.
  • Define URL.
  • What are the 2 protocols normally used for retrieving email?
  • What is the protocol normally used for send email?
  • What does SSL accomplish?
  • What does telnet accomplish?
  • List the ports used for the following: http, https, ftp, telnet, smtp, rdp.
  • List 6 different web browsers.
  • How are viruses and spyware transmitted via websites?
  • What does a proxy server accomplish?

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