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Chapter 7 Fundamentals Textbook

Chapter 7 Fundamentals Textbook - OSI Data Link Layer...

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© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 1 Version 4.0 OSI Data Link Layer Network Fundamentals – Chapter 7
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2 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public Objectives Explain the role of Data Link layer protocols in data transmission. Describe how the Data Link layer prepares data for transmission on network media. Describe the different types of media access control methods. Identify several common logical network topologies and describe how the logical topology determines the media access control method for that network. Explain the purpose of encapsulating packets into frames to facilitate media access. Describe the Layer 2 frame structure and identify generic fields. Explain the role of key frame header and trailer fields including addressing, QoS, type of protocol and Frame Check Sequence.
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3 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public Data Link Layer – Accessing the Media Data Link Layer provides services as it prepares communication for transmission on specific media
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