1. Cisco Network Support Certifications 2. Networking Terms 3. INTRODUCTION TO NETWORKING 4. TYPES OF NETWORK 5. The Development of the Internet 6. NETWORK ARCHITECTURE 7. TOPOLOGY 8. BUS TOPOLOGY 9. RING TOPOLOGY 10. STAR TOPOLOGY 11. MESH TOPOLOGY 12. HYBRID TOPOLOGY 13. Speed of Networking device 14. NETWORK DEVICES 15. Exploring Wireless Network 16. REPEATERS 17. HUB 18. SWITCH 19. BRIDGE 20. ROUTERS 21. TRANSMISSION Telecommunication 22. Difference between Full Duplex, Half Duplex and Simplex 23. IP-ADDRESSING and IPV4 24. IPv4 address classes 25. IPV6 [ Internet Protocol Version 6 ] 26. SPEED OF VARIOUS DEVICES 27. Network Security 28. Some basic suggestion and steps to prevent Attacks and Network security 29. OSI model 30. UPPER and LOWER Layer 31. Application Layer (Layer 7) 32. Presentation Layer (Layer 6) 33. Session Layer (Layer 5) 34. Transport Layer (Layer 4) 35. Network Layer (Layer 3) 36. Data Link Layer 2 37. Physical Layer 1 38. TCP/IP The DoD Model 39. ROUTED PROTOCOL 40. Ports and Application 41. Important Application, Protocol and Port Number 42. Router Function 43. Types of Routing Protocols 44. STARTING ROUTER 45. CISCO IOS 46. Logging in to the Router 47. CISCO Router IOS commands List 48. Setting time and date of router 49. Router configuration commands 50. Optimizing Switch and Router 51. Understanding Router Terms 52. ROUTER SECURITY 53. Configuring CISCO SWITCH Security Policy 54. IMPLEMENTING STATIC ROUTING 55. UNDERSTANDING THE NEED FOR NAT 56. WAN Connections 57. Access List [ACL] 58. VLAN [Virtual Local Area Network] 59. SPANNING TREE :- BROADCAST STORM 60. Lab 1 Setting up a Serial Interface 61. Lab 2 : IP Addressing 62. Lab 3 Static Routes 63. Lab 4 Default Routes 64. Lab 5 RIP Routes 65. Lab 6 IGRP Routes 66. Lab 7 EIGRP Routes 67. Lab 8 OSPF Routes 68. Lab 9 CHAP and RIP 69. Lab 10 Standard Access-Lists with RIP 70. Lab 11 Extended Access-Lists with RIP 71. Lab 12 Static NAT 72. Lab 13 Many to One NAT 73. Lab 14 NAT Pool 74. Lab 15 ( 2950 Trunk ) 75. Lab 16 ( 2950 Trunk Dynamic ) 76. Lab 17 (2950 VLANs) 77. Lab 18 ( 2950 Deleting VLANs ) 78. Lab 19 ( 2950 VTP ) 79. Lab 20 ( 2950 VTP w/ client ) 80. Lab 21 ( 2950 Telnet )
Pr.Pg Next Pg


  • Before computer era, people had to use cumbersome paper writing and rewriting work. There after during computers without network, they had to use floppy diskette to share information

  • A network is a system that allows communication to occur between two or more devices. In computer networking the rules for communication must be well defined so that they can communicate without delay or any problem. If computers cannot understand each other then there will be NO INTERNET, NO SHARING OF FILES or SHARED PRINTING and then everything will stop.


Following are some of advantages of network

  • Networks are used to make work and communication more efficient.

  • When computers, printers, hard-disks, Cd & Dvd roms are connected together, people can pass and share data and information quickly.

  • Network helps to reduce TCO [Total Cost of Ownership] of equipment, in a way if a company owns 20 Pcs and all want to access PRINTER, DVD Rom then 20 printers or 20 DVD roms are not required. One can share 1 or 2 printer/or/DVD Rom with all the users.

  • It helps in centralized management of data

  • Security can be implemented and exact rights can be assigned to users, what each user can do and can not.

  • Network helps to maintain data backup.

  • Server Cluster and Data Replication possible only over network.

  • Large scale development in the field of Finance, Banking, Insurance, Tele Communication, Travel and BPO, KPO and IT industry is all possible due to network.


To build a network, you need three types of devices or components:

  • 1> Computers:- devices such as PCs and Servers running either Microsoft Windows, Macintosh OS, Unix (including Linux) or other operating systems—are responsible for providing applications to the users.

  • 2> Networking devices:- Such as hubs, bridges, switches, routers, firewalls, modems that are responsible for moving information between computers.

  • 3> Cabling :- such as copper or fiber cabling, is needed to connect the computers and networking devices so that information can be shared between components. Wireless communication also falls in this category.




Small office/home office (SOHO)

Users working from a home or small office (a handful of people)

Branch office

A small group of users connected in a small area, called a LAN, geographically separated from a corporate office

Mobile users

Users who can connect to a network from any location, LAN, or WAN

Corporate office

The location where most users in an organization and their resources are located


Pr.Pg border                                              Next Pg