Reading Assignment Transmission Basics and Networking Media

 

  1. Read pages 82-89 and answer the questions below.
    1. A signal that travels in only one direction is called ____________.
    2. A signal that can travel in both directions, but only one direction at a time is called ___________________.
    3. A signal that can travel in both directions simultaneously is called ___________________.
    4. On a network cable one wire is relegated to sending data, another is relegated to receiving data. These individual cables might also be referred to as ___________________.
    5. A ________________ can be physical, as above or can be __________________.
    6. You’ve got five people using the same bandwidth. How does the network control access to the bandwidth by allowing it to carry multiple signals?
    7. What is a mux?

 

    1. What is a demux?

 

    1. This kind of multiplexing uses little slots of time to share the bandwidth with more than one sending node.

 

    1. This kind of multiplexing uses arbitration, contention, or demand priority in order to share bandwidth.

 

    1. Fiber optic cable uses ______________  _______________  multiplexing.

 

    1. In fiber, how is data represented?

 

    1. How many carrier waves can WDM handle from a single beam of light? Pretty cool, huh?

 

    1. Describe the difference between WDM and DWDM.

 

    1. Two computers connected directly to each other sharing data, or a computer connected to a hub would be what kind of node relationship would that be?

 

    1. When one computer sends packets out that are received by all other computers, this is called _______________________.

 

    1. When used over the web, this is called ___________________.

 

    1. Define throughput.

 

    1. Define bandwidth.

 

    1. What is the difference?

 

    1. When a transmission is in digital signal and is sent using direct current, it is usually __________________ communications.

 

    1. How does broadband differ from baseband?

 

  1. Complete case project 3-1 and fill out the table below. (page 153)

Need

Cabling chosen

Amount in feet

Hardware needed

Cost

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Case Project 3-2

  1. What network elements will you evaluate in the closet?

 

 

 

 

  1. What kinds of problems will you look for?

 

 

 

 

Case Project 3-3

  1. What could be causing the handheld computers to experience intermittent connectivity problems?

 

 

 

  1. what can you do to rule out the possibility that the handheld computers are faulty?