Chapter 31. Data Link Layer - Networking Essentials Companion Guide v3: Cisco Certified Support Technician (CCST) Networking 100-150, 2nd Edition [Book]

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Chapter 31

Data Link Layer

Objectives

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

What are the characteristics of physical and logical topologies?
How do devices access a LAN in order to send frames?

Key Terms

This chapter uses the following key terms. You can find the definitions in the Glossary.

Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA)

Carrier Sense Multiple Access with Collision Detection (CSMA/CD)

extended star topology

logical topology

physical topology

Introduction (31.0)

How will Halimah familiarize herself with the network at headquarters?

She will examine some topologies that have been created by the ...

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