Introduction (Back to all quizzes)

  1. What did early telephone operators do?

    Maintained cell phone towers
    Connected pairs of wires to allow people to talk
    Installed copper wire between cities
    Sorted packets as they went to the correct destination

  2. What is a leased line?

    A boundary between leased and owned telephone equipment
    A connection between a keyboard and monitor
    A wire that ran from one phone company office to another
    An "always on" telephone connection

  3. How long might a message be stored in an intermediate computer for a store-and-forward network?

    less than a second
    no more than four seconds
    less than a minute
    possibly as long as several hours

  4. What is a packet?

    A technique for wrapping items for shipping
    A small box used for storage
    A portion of a larger message that is sent across a network
    The amount of data that could be stored on an early punched card

  5. Which of these is most like a router?

    A mail sorting facility
    A refrigerator
    A high-speed train
    An undersea telecommunications cable

  6. What was the name given to early network routers?

    Interfaith Message Processors
    Internet Motion Perceptrons
    Instant Message Programs
    Interface Message Processors

  7. In addition to breaking large messages into smaller segments to be sent, what else was needed to properly route each message segment?

    A source and destination address on each message segment
    An ID and password for each message segment
    A small battery to maintain the storage for each message segment
    A small tracking unit like a GPS to find lost messages

  8. Why is it virtually free to send messages around the world using the Internet?

    Because governments pay for all the connections
    Because advertising pays for all the connections
    Because so many people share all the resources
    Because it is illegal to charge for long-distance connections