LESSON 1.2_A
     LESSON 1.2_A
    98-366 Networking Fundamentals
        Lesson Overview 
        In this lesson, you will learn about:
              LANs 
              Perimeter networks
              Addressing
              Local loopback IPs
              An Internet collection 
      LESSON 1.2_A
      LESSON 1.2_A
     98-366 Networking Fundamentals
      Anticipatory Set: Class Activity
         Two students draw a slip of paper from the box. Arrange 
          yourselves in order at the front of the room. Two more 
          students select numbers and add to the network forming. 
         The student with number 1: Tell a “secret” to number 2. 
          Continue to pass information from one student to the next 
          until the message reaches the end of the network.
         When the last person receives the message, repeat it to the 
          class.
         Describe how this process is similar and different to a 
          computer passing information throughout a network. 
     LESSON 1.2_A
     LESSON 1.2_A
    98-366 Networking Fundamentals
      Just as people network and talk to each other and spread 
      information, computers can network and talk to each other and 
      share information.
      LESSON 1.2_A
      LESSON 1.2_A
     98-366 Networking Fundamentals
       LANs - Local Area Networks
          Computer networks ranging in size from two computers in 
           a home to a few computers in a single office to hundreds 
           or even thousands of devices spread across several 
           buildings.  
          They function to link computers together and provide 
           shared access to printers, file servers, and other services. 
      LESSON 1.2_A
      LESSON 1.2_A
     98-366 Networking Fundamentals
          A group of computers and other devices dispersed over 
           a relatively limited area and connected by a 
           communications link that enables any device to interact 
           with any other on the network. 
          LANs commonly include PCs and shared resources 
           such as laser printers and large hard disks. 
          The devices on a LAN are known as nodes (individual 
           pieces of equipment.) 
           o Nodes are connected by wireless and by cables and through 
             which messages are transmitted