OSI Physical Layer Network Fundamentals Chapter 8 Version

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OSI Physical Layer Network Fundamentals – Chapter 8 Version 4. 0 © 2007 Cisco

OSI Physical Layer Network Fundamentals – Chapter 8 Version 4. 0 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 1

Objectives § Explain the role of Physical layer protocols and services in supporting communication

Objectives § Explain the role of Physical layer protocols and services in supporting communication across data networks. § Describe the role of signals used to represent bits as a frame as the frame is transported across the local media. § Describe the purpose of Physical layer signaling and encoding as they are used in networks. § Identify the basic characteristics of copper, fiber and wireless network media. § Describe common uses of copper, fiber and wireless network media. © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 2

Physical Layer Protocols & Services § Describe the purpose of the Physical layer in

Physical Layer Protocols & Services § Describe the purpose of the Physical layer in the network and identify the basic elements that enable this layer to fulfill its function © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 3

Physical Layer Protocols & Services § Describe the role of bits in representing a

Physical Layer Protocols & Services § Describe the role of bits in representing a frame as it is transported across the local media © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 4

Physical Layer Protocols & Services § Describe the role of signaling in the physical

Physical Layer Protocols & Services § Describe the role of signaling in the physical media © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 5

Physical Layer Protocols & Services § Distinguish who establishes and maintains standards for the

Physical Layer Protocols & Services § Distinguish who establishes and maintains standards for the Physical layers compared to those for the other layers of the network © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 6

Physical Layer Protocols & Services § Identify hardware components associated with the Physical layer

Physical Layer Protocols & Services § Identify hardware components associated with the Physical layer that are governed by standards © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 7

Physical Layer Signaling and Encoding § Explain that network communication at this layer consists

Physical Layer Signaling and Encoding § Explain that network communication at this layer consists of individual bits encoded onto the Physical layer and describe the basic encoding techniques © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 8

Physical Layer Signaling and Encoding § Describe the role of encoding as it applies

Physical Layer Signaling and Encoding § Describe the role of encoding as it applies to the transmission of bits and explain the value of treating a collection of bits as a code © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 9

Physical Layer Signaling and Encoding § Define the terms bandwidth, throughput, and goodput ©

Physical Layer Signaling and Encoding § Define the terms bandwidth, throughput, and goodput © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 10

Characteristics & Uses of Network Media § Identify several media characteristics defined by Physical

Characteristics & Uses of Network Media § Identify several media characteristics defined by Physical layer standards © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 11

Characteristics & Uses of Network Media § Describe the impact interference has on throughput

Characteristics & Uses of Network Media § Describe the impact interference has on throughput and the role of proper cabling in reducing interference © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 12

Characteristics & Uses of Network Media § Identify the basic characteristics of UTP cable

Characteristics & Uses of Network Media § Identify the basic characteristics of UTP cable © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 13

Characteristics & Uses of Network Media § Identify the basic characteristics of STP and

Characteristics & Uses of Network Media § Identify the basic characteristics of STP and Coaxial cable © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 14

Characteristics & Uses of Network Media § Identify types of safety issues when working

Characteristics & Uses of Network Media § Identify types of safety issues when working with copper cabling © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 15

Characteristics & Uses of Network Media § Identify several primary characteristics of fiber cabling

Characteristics & Uses of Network Media § Identify several primary characteristics of fiber cabling and its main advantages over other media © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 16

Characteristics & Uses of Network Media § Describe the role of radio waves when

Characteristics & Uses of Network Media § Describe the role of radio waves when using air as the media and the increased need for security in wireless communications © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 17

Characteristics & Uses of Network Media § Identify the characteristics used to categorize connectors,

Characteristics & Uses of Network Media § Identify the characteristics used to categorize connectors, describe some common uses for the same connectors, and identify the consequences for misapplying a connector in a given situation © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 18

Summary © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 19

Summary © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 19

© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 20

© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 20

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