Wireless Communications

4•  After reviewing the concepts, pictorially model the TCP/IP protocol against the 7-layer OSI model. In your depiction, include the common protocol sections that fit in the various levels.Although the OSI model is most often associated with local area networks, it actually is used for all types of data communications.  It’s also important to remember that the OSI model is just that: an abstract model of how telecommunications is accomplished. It is not a picture of actual physical data communications, but a conceptual picture of how such communications work.

5Security on any network is a prime concern. On wireless networks, it is often a critical concern because the network transmissions are available to anyone within range of the transmitter with the appropriate antenna. On a wired network, the signals stay in the wires and can be protected by strong physical-access control. On a wireless network, sniffing is much easier because the radio transmissions are designed to be processed by any receiver within range. Furthermore, wireless networks tend to have fuzzy boundaries. A corporate wireless network may extend outside the building and in that case you need to put in place a good security plan in order to avoid unwanted users to be able to enter your network.