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CCNA 1 Module1

CCNA 1 Module1. Objectives. Internet Connections. Physical – NIC card to connect to local net Logical – Use a standard set of protocols (TCP/IP) Applications – Web browsers, Html, FTP. PC Basics. Network Interface Card. NIC Card Resources

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CCNA 1 Module1

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  1. CCNA 1 Module1

  2. Objectives

  3. Internet Connections Physical – NIC card to connect to local net Logical – Use a standard set of protocols (TCP/IP) Applications – Web browsers, Html, FTP

  4. PC Basics

  5. Network Interface Card

  6. NIC Card Resources • Serial Connection to the network (not a serial port) • IRQ (interrupt request) • I/O address (Port addresses) • Upper memory address range (640k-1M)

  7. NIC – Modem Installation • Modem – modulator / demodulator • Used to provide connectivity to analog telephone lines • Low speed interface using serial or USB ports • NIC – Network Interface Card • Interface for a host to the network • Available in different types depending on computer system and network • PCMCIA (PC Card), ISA, PCI • Desktop, notebook, server • Ethernet, token ring, FDDI

  8. Combination 56K Modem and 10/100Mbps NIC PC Card

  9. 56K External Modem – Front Panel Status Leds

  10. PCMCIA 10/100 NIC Cards – Land based and Wireless

  11. NIC Card designed for use in desktop system using PCI and connection to Ethernet 10/100 network

  12. External NIC Card using USB type interface

  13. High Speed and Dial-up Connectivity • DSL (Digital Subscriber Line) and Cable modems provide the most common forms of high speed access • Provide low cost connectivity without affecting regular phone or cable service.

  14. TCP

  15. Testing Connectivity

  16. The Ping utility works by sending multiple IP packets to a specified destination, each packet containing a request for a response. Below are examples of ping commands that are commonly used for testing network connectivity.

  17. Web Browsers

  18. Plug-ins

  19. PC/Network Troubleshooting Problems can exist in hardware, software or network configuration as well as network cables and devices.

  20. Binary Representation of Data ASCII 6566676869707172 The binary codes shown above use a weighted system where each digit has a different positional weight (128,64,32,16,8,4,2,1). A binary 0 might also mean off, low, disabled, 0V A binary 1 might also mean on, high, enabled, +5V

  21. Network Math

  22. Base 10 Numbering System

  23. Base 2 Numbering System

  24. Converting Decimal to Binary

  25. Converting Binary to Decimal

  26. 4-octet Dotted Decimal Notation

  27. Hexadecimal

  28. Boolean or Binary Logic

  29. IP Addresses and Network Masks

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