Networks and Internet by Michelle Skow https://padlet.com/mskow/27d9jjlnr9p5yus7 en-us 2023-06-09 19:45:29 UTC 2025-12-11 15:49:11 UTC hello@padlet.com Network: mskow https://padlet.com/mskow/27d9jjlnr9p5yus7/wish/2619570661 two or more computers that are linked in order to share resources, exchange files, or allow electronic communications]]> 2023-06-09 19:48:20 UTC https://padlet.com/mskow/27d9jjlnr9p5yus7/wish/2619570661 LAN = Local Area Network: mskow https://padlet.com/mskow/27d9jjlnr9p5yus7/wish/2619571328 a network that is confined to a relatively small area, generally limited to a geographic area, like a lab, business or school building
*usually include work stations and/or servers, may be connected through cable or wireless service]]> 2023-06-09 19:50:10 UTC https://padlet.com/mskow/27d9jjlnr9p5yus7/wish/2619571328 WAN = Wide Area Network: mskow https://padlet.com/mskow/27d9jjlnr9p5yus7/wish/2619573626 Connect networks in a larger geographic area, like a state, country or across continents, 
*uses multiplexers, bridges, and routers to connect local networks to global communications networks ]]> 2023-06-09 19:56:25 UTC https://padlet.com/mskow/27d9jjlnr9p5yus7/wish/2619573626 Advantages- mskow https://padlet.com/mskow/27d9jjlnr9p5yus7/wish/2619575569 1- User access control
2- Information storing and sharing
3- Connections
4- Services
5- Internet
6- Computing resources
7- Flexible Access
8- Workgroup Computing.
]]> 2023-06-09 20:01:32 UTC https://padlet.com/mskow/27d9jjlnr9p5yus7/wish/2619575569 Disadvantages- mskow https://padlet.com/mskow/27d9jjlnr9p5yus7/wish/2619576261 1- Expensive to Install
2- Requires Administrative Time
3- Servers Fail
4- Cables May Break
5- Security and compliance
]]> 2023-06-09 20:03:51 UTC https://padlet.com/mskow/27d9jjlnr9p5yus7/wish/2619576261 Definition of Protocol: mskow https://padlet.com/mskow/27d9jjlnr9p5yus7/wish/2619598538 set of rules that governs the communications between computers on a network]]> 2023-06-09 21:12:00 UTC https://padlet.com/mskow/27d9jjlnr9p5yus7/wish/2619598538 OSI = Open Systems Interconnection: mskow https://padlet.com/mskow/27d9jjlnr9p5yus7/wish/2619598987 Examples: 

  • Ethernet (Physical/Data Link Layers)
  • IP/IPX (Network Layer)
  • TCP/SPX (Transport Layer)
  • HTTP, FTP, Telnet, SMTP, and DNS(combined Session/Presentation/Application Layers)
]]> 2023-06-09 21:13:17 UTC https://padlet.com/mskow/27d9jjlnr9p5yus7/wish/2619598987 Ethernet (Physical/Data Link Layers) mskow https://padlet.com/mskow/27d9jjlnr9p5yus7/wish/2619599661 2023-06-09 21:15:45 UTC https://padlet.com/mskow/27d9jjlnr9p5yus7/wish/2619599661 IP and IPX (Network Layer) mskow https://padlet.com/mskow/27d9jjlnr9p5yus7/wish/2619600230 2023-06-09 21:17:46 UTC https://padlet.com/mskow/27d9jjlnr9p5yus7/wish/2619600230 TCP and SPX (Transport Layer) mskow https://padlet.com/mskow/27d9jjlnr9p5yus7/wish/2619600426 2023-06-09 21:18:31 UTC https://padlet.com/mskow/27d9jjlnr9p5yus7/wish/2619600426 HTTP, FTP, SMTP and DNS (Session/Presentation/Application Layers) mskow https://padlet.com/mskow/27d9jjlnr9p5yus7/wish/2619602949 2023-06-09 21:28:01 UTC https://padlet.com/mskow/27d9jjlnr9p5yus7/wish/2619602949 mskow https://padlet.com/mskow/27d9jjlnr9p5yus7/wish/2619603785 2023-06-09 21:31:15 UTC https://padlet.com/mskow/27d9jjlnr9p5yus7/wish/2619603785 NIC = network interface card mskow https://padlet.com/mskow/27d9jjlnr9p5yus7/wish/2619604306 provides the physical connection between the network and the computer workstation; major factor in determining the speed and performance of a network]]> 2023-06-09 21:33:28 UTC https://padlet.com/mskow/27d9jjlnr9p5yus7/wish/2619604306 Advantages of wireless networks mskow https://padlet.com/mskow/27d9jjlnr9p5yus7/wish/2619605692
  • Mobility
  • Fast setup
  • Cost
  • Expandability 

    • ]]>     2023-06-09 21:39:00 UTC https://padlet.com/mskow/27d9jjlnr9p5yus7/wish/2619605692     Disadvantages of wireless networks mskow https://padlet.com/mskow/27d9jjlnr9p5yus7/wish/2619605894
  • Security
  • Interference
  • Inconsistent connections
  • Speed

    • ]]>     2023-06-09 21:39:53 UTC https://padlet.com/mskow/27d9jjlnr9p5yus7/wish/2619605894     Types of Cable mskow https://padlet.com/mskow/27d9jjlnr9p5yus7/wish/2619606728 2023-06-09 21:43:08 UTC https://padlet.com/mskow/27d9jjlnr9p5yus7/wish/2619606728 Basic types of cable- mskow https://padlet.com/mskow/27d9jjlnr9p5yus7/wish/2619608253 Unshielded/Shielded Twisted cable (UTP/STP)

    Coaxial cable

    Fiber Optic cable

    ]]>     2023-06-09 21:48:49 UTC https://padlet.com/mskow/27d9jjlnr9p5yus7/wish/2619608253     Physical Topology of a network: mskow https://padlet.com/mskow/27d9jjlnr9p5yus7/wish/2619608830 the configuration of cables, computers, and other peripherals]]> 2023-06-09 21:51:08 UTC https://padlet.com/mskow/27d9jjlnr9p5yus7/wish/2619608830 Main Types of Physical Topologies mskow https://padlet.com/mskow/27d9jjlnr9p5yus7/wish/2619609816 Advantages and Disadvantages to each type]]> 2023-06-09 21:54:22 UTC https://padlet.com/mskow/27d9jjlnr9p5yus7/wish/2619609816 Two major types of network operating systems mskow https://padlet.com/mskow/27d9jjlnr9p5yus7/wish/2619611912 Peer-to-Peer:
    - allow users to share resources and files located on their computers and to access shared resources found on other computers
    - do not have a file server or a centralized management source all computers are considered equal
    - all have the same abilities to use the resources available on the network.
    Client/Server:
    -     allow the network to centralize functions and applications in one or more dedicated file servers; file servers become the heart of the system, providing access to resources and providing security
    - individual workstations have access to the resources available on the file servers 
    - provides the mechanism to integrate all the components of the network and allow multiple users to simultaneously share the same resources irrespective of physical location.

    *Most modern networks are combinations of both. ]]>     2023-06-09 22:02:56 UTC https://padlet.com/mskow/27d9jjlnr9p5yus7/wish/2619611912     mskow https://padlet.com/mskow/27d9jjlnr9p5yus7/wish/2619612523 2023-06-09 22:05:36 UTC https://padlet.com/mskow/27d9jjlnr9p5yus7/wish/2619612523 Peer-to-Peer mskow https://padlet.com/mskow/27d9jjlnr9p5yus7/wish/2619613089 2023-06-09 22:07:57 UTC https://padlet.com/mskow/27d9jjlnr9p5yus7/wish/2619613089 Client/Server mskow https://padlet.com/mskow/27d9jjlnr9p5yus7/wish/2619613277 2023-06-09 22:08:51 UTC https://padlet.com/mskow/27d9jjlnr9p5yus7/wish/2619613277 Firewalls mskow https://padlet.com/mskow/27d9jjlnr9p5yus7/wish/2619615031 Firewalls can be hardware or software!

    *A firewall used to protect a network is a hardware device that should be installed in the network between the router and the network.

    *Software firewalls are commonly included in modern workstation and server operating systems. They operate in a similar way as hardware firewalls, except that they filter traffic in and out of the machine itself.

    ]]>     2023-06-09 22:15:01 UTC https://padlet.com/mskow/27d9jjlnr9p5yus7/wish/2619615031