Week 4 Book Questions
What are the parts of TCP/IP and what do they do? Who is the primary user of TCP/IP?
TCP/IP has two parts as follows:
* TCP is the first part and stands for Transmission Control Protocol.
* TCP is a transport layer protocol
* TCP bridges the application layer to the network layer
* Ensures the receiver has received all segments that have been sent and provides flow control
* TCP is a connection established by the sender and receiver
* Performs segmenting by breaking down data into smaller PDUs
* IP is the second part and stands for Internet Protocol and is the network layer protocol
* Performs addressing and routing
* Routes messages to their final destinations by selecting best path through the network
* IP software must be used at every computer that the message will pass through
TCP/IP was initially developed for ARPANET. However, it has now become the world’s most popular transporting network protocol and is used by almost all BNs, MANs, LANs, and WANs
Compare and contrast the three types of addresses used in a network
The three addresses are as follows:
Application Layer Address
Network layer address
Data link layer address
The application layer address is also related to the server name. Internet names are typed into browsers and these requests pass through the network as formatted application layer packets. These are also assigned by a software configuration file The network layer software uses a network layer address and are mainly assigned by software just like the application layer addressing. Both the application layer addressing and the network layer addressing can be assigned by network managers as well. Both network and application layer addressing must also be approved by the same standards group because they usually go hand-in-hand.
Now, the data link layer can not be changed at all and is a hardware address permanently encoded on each network card. This is why we...