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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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Internet connections
Internet Connections

Physical – NIC card to connect to local net

Logical – Use a standard set of protocols (TCP/IP)

Applications – Web browsers, Html, FTP




  • 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)


Nic modem installation
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





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


External NIC Card using USB type interface connection to Ethernet 10/100 network


High speed and dial up connectivity
High Speed and Dial-up Connectivity connection to Ethernet 10/100 network

  • 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.


TCP connection to Ethernet 10/100 network


Testing connectivity
Testing Connectivity connection to Ethernet 10/100 network


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.


Web browsers
Web Browsers specified destination, each packet containing a request for a response. Below are examples of ping commands that are commonly used for testing network connectivity.


Plug-ins specified destination, each packet containing a request for a response. Below are examples of ping commands that are commonly used for testing network connectivity.


Pc network troubleshooting
PC/Network Troubleshooting specified destination, each packet containing a request for a response. Below are examples of ping commands that are commonly used for testing network connectivity.

Problems can exist in hardware, software or network configuration as well as network cables and devices.


Binary representation of data
Binary Representation of Data specified destination, each packet containing a request for a response. Below are examples of ping commands that are commonly used for testing network connectivity.

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


Network math
Network Math specified destination, each packet containing a request for a response. Below are examples of ping commands that are commonly used for testing network connectivity.


Base 10 numbering system
Base 10 Numbering System specified destination, each packet containing a request for a response. Below are examples of ping commands that are commonly used for testing network connectivity.


Base 2 numbering system
Base 2 Numbering System specified destination, each packet containing a request for a response. Below are examples of ping commands that are commonly used for testing network connectivity.


Converting decimal to binary
Converting Decimal to Binary specified destination, each packet containing a request for a response. Below are examples of ping commands that are commonly used for testing network connectivity.


Converting binary to decimal
Converting Binary to Decimal specified destination, each packet containing a request for a response. Below are examples of ping commands that are commonly used for testing network connectivity.


4 octet dotted decimal notation
4-octet Dotted Decimal Notation specified destination, each packet containing a request for a response. Below are examples of ping commands that are commonly used for testing network connectivity.


Hexadecimal
Hexadecimal specified destination, each packet containing a request for a response. Below are examples of ping commands that are commonly used for testing network connectivity.


Boolean or binary logic
Boolean or Binary Logic specified destination, each packet containing a request for a response. Below are examples of ping commands that are commonly used for testing network connectivity.


Ip addresses and network masks
IP Addresses and Network Masks specified destination, each packet containing a request for a response. Below are examples of ping commands that are commonly used for testing network connectivity.


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