chap2(2) - Communicating Over the Network Network...

Info iconThis preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon
© 2006 Cisco Systems, Inc. All rights reserved. Cisco Public ITE I Chapter 6 1 Communicating Over the Network Network Fundamentals – Chapter 2 Modified by Tony Chen 05/20/2008
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
© 2006 Cisco Systems, Inc. All rights reserved. Cisco Public ITE 1 Chapter 6 2 Notes: If you see any mistake on my PowerPoint slides or if you have any questions about the materials, please feel free to email me at chento@cod.edu . Thanks! Tony Chen College of DuPage Cisco Networking Academy
Background image of page 2
© 2006 Cisco Systems, Inc. All rights reserved. Cisco Public ITE 1 Chapter 6 3 Objectives Drippy Sweet Pancakes For Breakfast Please Do Not Throw Sausage Pizza Away Never Ingest Tainted Apple
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
© 2006 Cisco Systems, Inc. All rights reserved. Cisco Public ITE 1 Chapter 6 4 Objectives In this course, we focus on these aspects of the information network: Devices that make up the network Media that connect the devices Messages that are carried across the network Rules and processes that govern network communications Tools and commands for constructing and maintaining networks This chapter prepares you to: Describe the structure of a network, including the devices and media that are necessary for successful communications. Explain the function of protocols in network communications. Explain the advantages of using a layered model to describe network functionality. Describe the role of each layer in two recognized network models: The TCP/IP model and the OSI model. Describe the importance of addressing and naming schemes in network communications.
Background image of page 4
© 2006 Cisco Systems, Inc. All rights reserved. Cisco Public ITE 1 Chapter 6 5 The Elements of Communication Communication begins with a message, or information, that must be sent from one individual or device to another. All of these methods have three elements in common . –The first of these elements is the message source, or sender. Message sources are people, or electronic devices, that need to send a message to other individuals or devices. The second element of communication is the destination, or receiver , of the message. The destination receives the message and interprets it. A third element, called a channe l, consists of the media that provides the pathway over which the message can travel from source to destination.
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
© 2006 Cisco Systems, Inc. All rights reserved. Cisco Public ITE 1 Chapter 6 6 Communicating the Messages In theory, a single communication, such as a an e-mail message, could be sent across a network from a source to a destination as one massive continuous stream of bits. If messages were actually transmitted in this manner, it would mean that no other device would be able to send or receive messages while this data transfer was in progress. A better approach is to divide the data into
Background image of page 6
Image of page 7
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 41

chap2(2) - Communicating Over the Network Network...

This preview shows document pages 1 - 7. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online