1. 1 © 2004, Cisco Systems, Inc. All rights reserved. CCNA 1 v3.1 Module 2 Networking Fundamentals

2. 222 © 2004, Cisco Systems, Inc. All rights reserved. Objectives

3. 333 © 2004, Cisco Systems, Inc. All rights reserved. Data Networks

4. 444 © 2004, Cisco Systems, Inc. All rights reserved. Network History

5. 555 © 2004, Cisco Systems, Inc. All rights reserved. Network History continued

6. 666 © 2004, Cisco Systems, Inc. All rights reserved. Networking Devices

7. 777 © 2004, Cisco Systems, Inc. All rights reserved. Network Topology

8. 888 © 2004, Cisco Systems, Inc. All rights reserved. Network Protocols

9. 999 © 2004, Cisco Systems, Inc. All rights reserved. Local-area Networks (LANs)

10. 10 © 2004, Cisco Systems, Inc. All rights reserved. Wide-area Networks (WANs)

11. 11 © 2004, Cisco Systems, Inc. All rights reserved. Metropolitan-Area Network (MANs)

12. 12 © 2004, Cisco Systems, Inc. All rights reserved. Storage-Area Networks (SANS)

13. 13 © 2004, Cisco Systems, Inc. All rights reserved. Virtual Private Networks (VPNs)

14. 14 © 2004, Cisco Systems, Inc. All rights reserved. Benefits of VPNs

15. 15 © 2004, Cisco Systems, Inc. All rights reserved. Intranet and Extranet VPN

16. 16 © 2004, Cisco Systems, Inc. All rights reserved. Importance of Bandwidth

17. 17 © 2004, Cisco Systems, Inc. All rights reserved. Bandwidth Pipe Analogy

18. 18 © 2004, Cisco Systems, Inc. All rights reserved. Bandwidth Highway Analogy

19. 19 © 2004, Cisco Systems, Inc. All rights reserved. Bandwidth Measurements

20. 20 © 2004, Cisco Systems, Inc. All rights reserved. Bandwidth Limitations

21. 21 © 2004, Cisco Systems, Inc. All rights reserved. Bandwidth Throughput

22. 22 © 2004, Cisco Systems, Inc. All rights reserved. Digital Transfer Calculation

23. 23 © 2004, Cisco Systems, Inc. All rights reserved. Digital versus Analog

24. 24 © 2004, Cisco Systems, Inc. All rights reserved. Using Layers to Analyze Problems

25. 25 © 2004, Cisco Systems, Inc. All rights reserved. Using Layers to Describe Data Communication

26. 26 © 2004, Cisco Systems, Inc. All rights reserved. OSI Model

27. 27 © 2004, Cisco Systems, Inc. All rights reserved. OSI Layers

28. 28 © 2004, Cisco Systems, Inc. All rights reserved. OSI Layers Provides connectivity and path selection between two host Provides Logical address No error correction, best effort delivery.

29. 29 © 2004, Cisco Systems, Inc. All rights reserved. OSI Layers

30. 30 © 2004, Cisco Systems, Inc. All rights reserved. OSI Layers

31. 31 © 2004, Cisco Systems, Inc. All rights reserved. OSI Layers

32. 32 © 2004, Cisco Systems, Inc. All rights reserved. OSI Layers

33. 33 © 2004, Cisco Systems, Inc. All rights reserved. OSI Layers

34. 34 © 2004, Cisco Systems, Inc. All rights reserved. Peer-to-Peer Communication

35. 35 © 2004, Cisco Systems, Inc. All rights reserved. TCP/IP Model

36. 36 © 2004, Cisco Systems, Inc. All rights reserved. Encapsulation

37. 37 © 2004, Cisco Systems, Inc. All rights reserved. Names for Data at Each Layer

38. 38 © 2004, Cisco Systems, Inc. All rights reserved. Summary