The document discusses the physical layer of the OSI model. It describes the role of the physical layer in networking and the protocols and services it provides, including representing bits as they are transmitted across media and the use of signaling. It also covers the basic characteristics of different network media like copper, fiber, and wireless; physical layer encoding techniques; and standards that govern physical layer hardware components.
Open Systems Interconnection (OSI) is a set of internationally recognized, non-proprietary standards for networking and for operating system involved in networking functions.
Objectives :
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Upon completion of this chapter, you will be able to:
Identify device connectivity options.
Describe the purpose and functions of the physical layer in the network.
Describe basic principles of the physical layer standards.
Identify the basic characteristics of copper cabling.
Build a UTP cable used in Ethernet networks.
Describe fiber-optic cabling and its main advantages over other media.
Describe wireless media.
Select the appropriate media for a given requirement and connect devices.
Describe the purpose and function of the data link layer in preparing communication for transmission on specific media.
Describe the Layer 2 frame structure and identify generic fields.
Identify several sources for the protocols and standards used by the data link layer.
Compare the functions of logical topologies and physical topologies.
Describe the basic characteristics of media control methods on WAN topologies.
Describe the basic characteristics of media control methods on LAN topologies.
Describe the characteristics and functions of the data link frame.
Yaser Rahmati | یاسر رحمتی
Rahmati Academy | آکادمی رحمتی
www.yaser-rahmati.ir
www.rahmati-academy.ir
Upon completion of this chapter, you will be able to:
1) Identify device connectivity options.
2) Describe the purpose and functions of the physical layer in the network.
3) Describe basic principles of the physical layer standards.
4) Identify the basic characteristics of copper cabling.
5) Build a UTP cable used in Ethernet networks.
6) Describe fiber-optic cabling and its main advantages over other media.
7) Describe wireless media.
8) Select the appropriate media for a given requirement and connect devices.
Chapter 03 - Network Protocols and CommunicationsYaser Rahmati
Chapter 3: Objectives
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After completing this chapter, you will be able to:
Explain how rules are used to facilitate communication.
Explain the role of protocols and standards organizations in facilitating interoperability in network communications.
Explain how devices on a LAN access resources in a small to medium-sized business network.
Yaser Rahmati | یاسر رحمتی
Rahmati Academy | آکادمی رحمتی
www.yaser-rahmati.ir
www.rahmati-academy.ir
Chapter 3 : Network protocols and communicationsteknetir
After completing this chapter, you will be able to:
1) Explain how rules are used to facilitate communication.
2) Explain the role of protocols and standards organizations in facilitating interoperability in network communications.
3) Explain how devices on a LAN access resources in a small to medium-sized business network.