© 2007 Cisco Systems, Inc. All rights reserved.Cisco Public 1 Version 4.0 Connecting to the Network Introduction to Networking Concepts

2 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Part 1 - Objectives  Explain the concept of networking and the benefits of networks.  Explain the concept of communication protocols.  Explain how communication occurs across a local Ethernet network.  Describe Access layer devices and communication methods on a local Ethernet network.  Describe Distribution layer devices and communication methods across networks.  Explain different types of cabling used to physically connect devices on the network.  Plan, implement, and verify a local network.

3 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public How Networks Impact Daily Life  Explain the benefits of instantaneous communication and how it supports and improves our lives

4 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Network Structure  Define the components of a network –Network components Hardware Software

5 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Networking and Its Benefits  Define the components of an Information network

6 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Networking and Its Benefits  Describe the Roles of computers on a network  Clients and servers

7 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Networking and Its Benefits  Build computer peer-to-peer network and verify

8 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Network Types  Define Local Area Networks (LANs) –A network serving a home, building or campus is considered a Local Area Network (LAN)

9 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Network Types  Define Wide Area Networks (WANs) –LANs separated by geographic distance are connected by a network known as a Wide Area Network (WAN)

10 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Network Topologies  Differentiate between logical and physical topologies, and explain how networks are represented graphically

11 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Communication Protocols  Explain the concept of communication in terms of source, destination and channel

12 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Communication Protocols  Explain the need for rules and protocols in order for communication to occur

13 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Communication Across a Local Ethernet Network  Explain that Devices on a local network must share common protocols to communicate (Communicating by the Rules)

14 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Communication Across a Local Ethernet Network  Physical addressing identifies Source, Destination and Channel on an Ethernet Network

15 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Communication Across a Local Ethernet Network  Describe some of the basic characteristics of Ethernet for communicating across the channel

16 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Communication Across a Local Ethernet Network  Explain the purpose of a logical network address as the location of a host on a Network (source and destination)

17 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Access Layer Devices and Communication Methods  Describe the Purpose of the Access Layer and how it is used within an Ethernet Network

18 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Methods of Obtaining an IP Address  Describe the methods of assigning an IP Address Static Assignment Dynamic Assignment

19 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Access Layer Devices and Communication Methods  Describe the function of a Hub and how it operates within an Ethernet Network

20 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Access Layer Devices and Communication Methods  Describe the function of switches and how they are used in an Ethernet network

21 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Access Layer Devices and Communication Methods  Broadcast Domains and broadcasts using hubs and switches

22 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Distribution Layer Devices and Communication Methods  Describe the reasons for expanding your network with a distribution layer

23 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Distribution Layer Devices and Communication Methods  Describe the function of routers and how they are used in the network

24 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Distribution Layer Devices and Communication Methods  Explain the concept of the default gateway

25 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Distribution Layer Devices and Communication Methods  Describe how the router keeps tract of multiple networks using routing and ARP tables

26 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Distribution Layer Devices and Communication Methods  Define the term “local area network (LAN)”

27 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Distribution Layer Devices and Communication Methods  Differentiate between implications of adding hosts to “My local network” vs. adding to a “remote network”

28 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Distribution Layer Devices and Communication Methods  Learn to Use Packet Tracer

29 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Types of Cables and Connectors Used in Networking  Identify and describe common types of cables

30 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Types of Cables and Connectors Used in Networking  Describe twisted pair cables, common terminations, and when they are used

31 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Types of Cables and Connectors Used in Networking  Describe Coax cable, common terminations, and when they are used

32 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Types of Cables and Connectors Used in Networking  Describe optical fiber cables, common terminations, and when they are used

33 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Construct and Terminate Twisted Pair Cables  Define cable standards and state their purpose

34 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Construct and Terminate Twisted Pair Cables  Identify and describe the cross-over and straight through cable pinouts and color codes

35 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Construct and Terminate Twisted Pair Cables  Describe how to terminate UTP cables

36 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Construct and Terminate Twisted Pair Cables  Describe how to punch down wires to patch panel and wall jacks.

37 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Construct and Terminate Twisted Pair Cables  Describe how to test cable termination and functionality (Cable testing).

38 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Plan, Implement and Verify a Local Network  Plan and document the building of a small home or small business Ethernet network

39 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Plan, Implement and Verify a Local Network  Build a virtual model of their small home or small business network

40 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Plan, Implement and Verify a Local Network  Describe the features of multifunction devices and how they are used in the network

41 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Plan, Implement and Verify a Local Network  Connect and properly document the network installation

42 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Plan, Implement and Verify a Local Network  Perform simple workgroup tasks in order to share resources

43 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Summary  Information networks carry data using hosts as clients, servers, or both.  All computer communication involves a source, destination, and channel.  Rules called protocols govern computer communications.  Larger networks are divided into smaller, more manageable ones using a layered hierarchical design.  Each network host needs both a physical MAC address and a logical IP address.  Good network design requires a network plan.

44 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Part 2 - Objectives  Explain “what is the Internet?” and how we connect to the Internet using an Internet Service Provider (ISP).  Compare TCP and UDP.  Explain the functions of DNS and DHCP.  Compare and contrast clients and servers and their interaction over the network.  Describe the type of interactions of Internet applications.  Describe the purpose of a layered model  Illustrate the interaction of various protocols.

45 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public The Internet and How We Connect to It Using an ISP  Define an Internet Service Provider and its purpose

46 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public What is the Internet?  An ISP is a company or organization through which a subscriber obtains Internet access.

47 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public The Internet and How We Connect to It Using an ISP  Identify and describe the different connection options that ISPs can provide

48 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public How Information is Sent When Using an ISP  Describe how the ISP forwards packets across the Internet

49 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public The Internet Cloud  Identify and describe the concept of the Internet cloud.

50 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Protocols That Support ISP Services  The TCP/IP suite of protocols supports reliability

51 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public TCP and UDP Transport Protocols  Differentiate between acknowledged versus unacknowledged protocols.

52 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Domain Name System (DNS)  Networking naming systems translate human- readable names into machine-readable addresses srv2

53 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Types of Interactions of Internet Applications  Describe DNS and its purpose.

54 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public IP Address Management  Describe where the DHCP services are located

55 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public IP Address Management  Describe addresses assigned by the ISP vs. assigned by the integrated router

56 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Using DHCP with a Home or Small Business Network  Describe the boundaries of a network as it relates to address space

57 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Compare and Contrast Clients and Servers  Review the client/server relationship.

58 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Types of Interactions of Internet Applications  Describe the interaction between a web client and a web server.

59 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Types of Interactions of Internet Applications  Describe the interaction between an FTP client and an FTP server.

60 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Types of Interactions of Internet Applications  Describe the interaction between clients and e- mail servers.

61 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Types of Interactions of Internet Applications  Describe the interaction between IM / Peer-to-Peer clients and servers.

62 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Types of Interactions of Internet Applications  Describe the interaction between voice clients and servers.

63 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Types of Interactions of Internet Applications  Well-known ports  Registered ports  Private ports

64 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Purpose of a Layered Model  Protocols operate as an interdependent stack  Each layer provides and receives services

65 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Purpose of a Layered Model  Describe protocol operation when sending and receiving a message.

66 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Purpose of a Layered Model  Describe the Open Systems Interconnect Model

67 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Summary  Internet Protocol (IP) controls the structure and addressing of data packets for transport through the Internet cloud.  Clients and servers use protocols and standards for exchanging information.  Client-server services are identified through the use of port numbers.  A protocol stack organizes the protocols in layers, with each layer providing and receiving services from the layers below and above it.

68 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public