Computer Networks Fundamentals
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Questions and Answers

What is the internet?

  • A server that provides services to other computers
  • A physical infrastructure that connects one network to another
  • A global network connecting millions of computers (correct)
  • A group of two or more computers linked together

    • What is the primary function of a server?

  • To initiate communication sessions with clients
  • To manage network resources
  • To request content or service from another computer
  • To provide services to other computers on the network (correct)

    • What is a client in a computer network?

  • A computer device that accesses and uses the network as well as shares network resources (correct)
  • A physical connection between devices and computers
  • A network protocol that enables communication between computers
  • A powerful computer that provides services to other computers

    • What is the role of media in a computer network?

    <p>To provide the physical connection between devices and computers</p> Signup and view all the answers

    What is the minimum number of computers required to form a computer network?

    <p>Two</p> Signup and view all the answers

    What is an example of a computer application that uses the client-server model?

    <p>Email</p> Signup and view all the answers

    What is the term for the person who manages to recruit another in a network marketing scheme?

    <p>Upline</p> Signup and view all the answers

    What is the primary function of a network protocol?

    <p>To enable communication between computers</p> Signup and view all the answers

    What is the primary function of a Network Interface Card (NIC)?

    <p>To enable communication between devices on a network</p> Signup and view all the answers

    What is an example of a resource on a network?

    <p>A printer</p> Signup and view all the answers

    What is the purpose of a protocol in computer networks?

    <p>To define the rules of communication between devices</p> Signup and view all the answers

    What is the primary characteristic of a Local Area Network (LAN)?

    <p>It connects devices over a relatively short distance</p> Signup and view all the answers

    What is the purpose of a Network Adapter?

    <p>To enable communication between devices on a network</p> Signup and view all the answers

    What is an example of a Wide Area Network (WAN)?

    <p>The internet</p> Signup and view all the answers

    What is a connector that enables devices to work hand in hand?

    <p>A cable</p> Signup and view all the answers

    What is the term for the person who uses a client to access resources on the network?

    <p>A user</p> Signup and view all the answers

    Study Notes

    Internet and Network Fundamentals

    • The internet is a global network connecting millions of computers to exchange data, news, and documents.
    • The internet relies on a physical infrastructure/device to connect networks to other networks.

    Computer Networks

    • A computer network is a group of two or more computers linked together to exchange information and data.
    • Computer networks can also use resources of other computers.
    • Basic network components include:
      • Server
      • Client
      • Media
      • Network Adopter (Network Interface Card)
      • Resources
      • User
      • Protocols

    Server

    • A server is a powerful computer that provides services to other computers on the network.
    • The server is in charge of sending programs and files to computers.

    Client

    • A client is a computer device that accesses and uses the network as well as shares network resources.
    • Clients are less powerful than servers and typically do not share their resources.
    • Examples of client-server applications include email, network printing, and the World Wide Web.

    Media

    • Media is the physical connection between devices and computers.
    • Examples of media include cables.

    Network Adopter (Network Interface Card)

    • A Network Interface Card (NIC) is a circuit board that enables sending and receiving data.
    • NICs are plugged into a motherboard or PCIe port.

    Resources

    • Resources include devices such as FAX, printers, and more.
    • Any device available to a client on the network is considered a resource.

    User

    • A user is a person who uses a client to access resources on the network.

    Protocols

    • Protocols are set of defined rules that allow entities to communicate across computers.
    • Examples of protocols include:
      • TCP (Transmission Control Protocol)
      • IP (Internet Protocol)
      • HTTP (Hypertext Transfer Protocol)
      • SMTP (Simple Mail Transfer Protocol)
      • FTP (File Transfer Protocol)
      • SNMP (Simple Network Management Protocol)
      • DNS (Domain Name System)
      • DHCP (Dynamic Host Configuration Protocol)
      • SSH (Secure Shell)
      • BGP (Border Gateway Protocol)
      • VoIP Protocols (SIP, RTP, RTCP)
      • Wireless Protocols (Wi-Fi, Bluetooth, Zigbee)

    Basic Types of Computer Networks

    Local Area Network (LAN)

    • A LAN connects network devices over a relatively short distance.
    • It provides a local connection, such as internet cable and wireless access.
    • LANs are faster and have less congestion due to the short distance.

    Wide Area Network (WAN)

    • A WAN provides long-distance transmission of data, voice, image, and video information over large geographical areas.
    • Examples of WANs include ZPN and the internet.

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    Description

    Learn about the basics of computer networks, including the internet and how it works. Understand how devices connect and exchange data, news, and documents.

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