Information Technology Reference
In-Depth Information
Internet Protocols
This chapter focuses on the TCP/IP suite of protocols and on IP addressing. The different
class types of IP addresses are reviewed. Subnet masks are discussed as the method that
subdivides a network. The TCP/IP layers are compared to the OSI model. Finally, some
important TCP/IP applications and protocols are discussed. The chapter focuses not only
on the theoretical aspects of TCP/IP but also on the implementation in Cisco routers.
“Do I Know This Already?” Quiz
The purpose of this assessment quiz is to help you determine how to spend your limited
study time. If you can answer most or all of these questions, you might want to skim the
Foundation Topics section and return to it later as necessary. Review the Foundation
Summary section and answer the questions at the end of the chapter to ensure that you have
a strong grasp of the material covered. If you intend to read the entire chapter, you do not
necessarily need to answer these questions now. If you find these assessment questions
difficult, read through the entire Foundation Topics section and review it until you feel
comfortable with your ability to answer all the Q & A questions at the end of the chapter.
These questions are repeated at the end of the chapter with additional questions to test your
mastery of the material.
Select the best answer. Answers to these questions are in the Appendix, “Answers to Quiz
Questions.”
Which IP protocol and port does Telnet use?
1
a. TCP 21
b. Protocol 1, TCP port 23
c. UDP 23
d. IP protocol 6, TCP port 23
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