HOMEWORK QUESTIONS WEEK 4
3.) What are the parts of TCP/IP and what do they do? Who is the primary user of TCP/IP? TCP/IP is the transport/network layer protocol we use on the internet. Many BN’S, MAN’s and WAN’s rely on it. This is because it is relatively efficient, and transmission has few errors. Any errors that are found, are checked and so large files can be sent even in the most unsafe network and the data will still be unchanged. TCP/IP is very compatible with a number of data link protocols as well. The two parts of the TCP/IP are the: Transport Layer Protocol and the Network Layer Protocol aka TCP and IP. TCP is what links the application layer to the network layer. It also helps by segmenting the data, by breaking them down into smaller PDU’s and numbering them. Lastly, it ensures that the segments are delivered in their entirety and that they are in proper order once they reach their destination. IP is in charge of the addressing and the routing tasks. Each intervening computer that a message passes through has IP software, and the software chooses what the best route for the message to take is, in order to get to the final destination. IP software is used at each of the intervening computers through which the message passes; it is IP that routes the message to the final destination. TCP software on the other hand, only participates at the sending/receiving piece and is involved in the application layer and where the data comes and goes. The primary user of TCP/IP is actually the military/government. It was actually developed for the U.S. Department of Defense’s Advanced Research Project Agency network (ARPANET) by Vinton Cerf and Bob Kahn in 1974. (Fitzgerald, 150)
4.) Compare and contrast the three types of addresses used in a network.
The three types of addresses in a network are: application layer address, network layer address, and the data link layer address. * The application layer address is the server name. A user simply types an...
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