Networking
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Networking Presentation Transcript

  • 1. Networking concepts
    • By
    • Robin Kapoor, 47
    • Sourabh Garg, 60
  • 2. Meaning
    • Connection between two or more things is known as networking
    • Connection between two or more computers is computer networking
    • Computer networks also involves other electronic and digital devices
  • 3. Networking Benefits Networking Enables: Information Sharing Hardware and Software Sharing Centralized Administration and Support
  • 4. Roles of Computers in a Network Mail Server Database Server Database Fax Server File and Print Server Directory Services Server Client Computer Mail Server Database Server Database Fax Server File and Print Server
  • 5. Types of Networks Peer-to-Peer Client-Server
  • 6. Scope of Networks Local Area Network Wide Area Network
  • 7. Local Area Networks
    • Bus topology
    • Ring topology
  • 8. Metropolitan Area Networks
    • A metropolitan area network based on cable TV.
  • 9. Wide Area Networks
    • Relation between hosts on LANs and the subnet.
  • 10. Wide Area Networks (2)
    • A stream of packets from sender to receiver.
  • 11. Wireless networks
  • 12. Wireless Networks
    • Categories of wireless networks:
    • Wireless LANs
    • Wireless WANs
  • 13. Wireless Networks (2)
    • (a) Bluetooth
    • (b) Wireless LAN
  • 14. Topologies
  • 15. Bus Topology Terminator Segment Terminator
  • 16. Star Topology Hub
  • 17. Ring Topology
  • 18. Mesh Topology
  • 19. Hybrid Topologies Star-Bus Bus Star-Ring
  • 20. Devices for networking
  • 21. Ethernet Collision Detection Carrier Sense Multiple Access Detects signal Transmits signal Collision detected Characteristics Description Access Method CSMA/CD Transfer Speed Standard Ethernet – 10 Mbps Fast Ethernet – 100 Mbps Gigabit Ethernet – 1 Gbps (1000 Mbps)
  • 22. Network Cables Types of Cables Coaxial ThinNet ThickNet 10Base2, 10Base5 Fiber-Optics Twisted-Pair Unshielded (UTP) Shielded (STP) 10BaseT
  • 23. Wireless Communication Devices Wireless Communication Devices Narrowband Radio Transmission Infrared Transmission
  • 24. Repeaters and Hubs Repeater Hub Repeater Transmits data to all connected computers Hub Transmits data to all connected computers in a star topology
  • 25. Bridges Bridge
  • 26. Switches Switch
  • 27. Routers Router Router Router Router
  • 28. Gateways Gateway Ethernet Token Ring
  • 29. Infrared Data Association (IrDA) Wireless Communication by Using IrDA Windows Client Mouse Laptop
  • 30. Open Systems Interconnection (OSI) Reference Model Application Layer Presentation Layer Session Layer Transport Layer Network Layer Data Link Layer Physical Layer
  • 31. Some other facts about networking
  • 32. IP Address Classes w x y z Class A Network ID Host ID Class B Network ID Host ID Class C Network ID Host ID
  • 33. IP Addresses 192.168.1.0 192.168.3.0 192.168.1.100 192.168.2.101 192.168.2.100 192.168.3.100 192.168.2.0 Host ID Network ID 192.168.1.100 IP Address
  • 34. The Internet Client Connection Using TCP/IP Protocol Server Text, Audio, Video, and Graphics Data Internet
  • 35. Internet Services
    • Electronic Mail (e-mail)
    • World Wide Web (WWW)
    • Chat
    • Internet News
    • File Transfer Protocol (FTP)
    • Telnet
    Internet
  • 36. Intranets Intranet Extranet Internet
  • 37. Uniform Resource Locator (URL)
    • URL (http://example.microsoft.com/tutorial/default.html)
      • Protocol used (http://)
      • DNS address (example.microsoft.com)
      • Path on the server (/tutorial/default.html)
    http:// example.microsoft.com / tutorial / default.html
  • 38. Internet Protocols
    • HTTP
    • HTTPS
    • FTP
    • SMTP
    • HTML
    • DHTML
    Server Data Client Connection Using an Internet Protocol Internet
  • 39. Proxy Servers Proxy Server Authorized Web Site Restricted Web Site Internet LAN LAN LAN
  • 40. Firewalls LAN LAN LAN Internet Firewall Authorized User Unauthorized User
  • 41. Thank You