Computer Networking and Logic
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Questions and Answers

What is the main advantage of high-speed connectivity services such as DSL and cable modem access?

  • They provide instant access and do not require a connection to be established for each session (correct)
  • They are only available for corporate environments
  • They require a second phone line
  • They require expensive equipment
  • What is the primary function of the ping command?

  • To share resources across a network
  • To test network connectivity (correct)
  • To establish a connection to a specified destination
  • To configure TCP/IP
  • What is the purpose of the internal loopback test?

  • To establish a connection to a host PC
  • To test network connectivity
  • To verify the operation of the TCP/IP stack and NIC transmit/receive function (correct)
  • To verify the TCP/IP address configuration
  • What is the purpose of pinging the default gateway IP address?

    <p>To verify whether the router that connects the local network to other networks can be reached</p> Signup and view all the answers

    What is the primary function of TCP/IP?

    <p>To allow cooperating computers to share resources across a network</p> Signup and view all the answers

    What is the main difference between high-speed connectivity services and dial-up connectivity?

    <p>High-speed connectivity services are always on and do not require a connection to be established for each session</p> Signup and view all the answers

    What is the purpose of pinging the IP address of a host computer?

    <p>To verify the TCP/IP address configuration for the local host and connectivity to the host</p> Signup and view all the answers

    What is the main advantage of using TCP/IP?

    <p>It allows cooperating computers to share resources across a network</p> Signup and view all the answers

    Study Notes

    Networking and Number Systems

    • High-speed internet services, such as Digital Subscriber Line (DSL) and cable modem access, have transitioned from corporate environments to consumer markets.
    • These services are "always on," providing instant access and do not require a connection to be established for each session, resulting in greater reliability and flexibility.
    • They have led to the ease of internet connection sharing by small office and home networks.

    TCP/IP

    • Transmission Control Protocol/Internet Protocol (TCP/IP) is a set of protocols or rules that allow cooperating computers to share resources across a network.
    • TCP/IP enables computers to share resources and communicate with each other over a network.

    Testing Connectivity with Ping

    • The ping command sends multiple IP packets to a specified destination, requesting a reply from each packet.
    • Ping is used to test the NIC (Network Interface Card) transmit/receive function, TCP/IP configuration, and network connectivity.
    • Internal loopback test: ping 127.0.0.1 verifies the operation of the TCP/IP stack and NIC transmit/receive function.
    • Ping can be used to verify:
      • Local host and connectivity to the host using the host's IP address.
      • Connectivity to the default gateway using the gateway's IP address.
      • Connectivity to a remote host using the remote host's IP address.

    Network Math

    • Binary presentation of data is used to represent alpha-numeric data in a computer.
    • The American Standard Code for Information Interchange (ASCII) is the most commonly used code for representing alpha-numeric data in a computer.

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    Description

    This quiz covers computer networking concepts, number systems, and logic gates. It also touches on high-speed and dial-up connectivity.

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