Chapter 6. Data Link Layer - Introduction to Networks Companion Guide (CCNAv7) [Book]

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Chapter 6

Data Link Layer

Objectives

Upon completion of this chapter, you will be able to answer the following questions:

What is the purpose and function of the data link layer in preparing communication for transmission on specific media?
What are the characteristics of media access control methods on WAN and LAN topologies?
What are the characteristics and functions of the data link frame?

Key Terms

This chapter uses the following key terms. You can find the definitions in the glossary at the end of the book.

Logical Link Control (LLC) page 206

Media Access Control (MAC) page 206

request for comments (RFCs) page 209

physical topology page 210

logical topology page 210

star topology page 211

extended star topology page 213

bus topology ...

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