2A
By attempting to understand how data is moved over the Internet, one can look at a old-fashioned fire brigade. Water weren’t blasted through a big fire hose,
it were passed on bucket after bucket by firefighters in a line, if one would drop out another would simply fill his/her place. Data is broken up into packets so
that it can be send through a variety of paths or lines, there for reaching its destination faster. Packets contain Internet protocols, typically TCP and IP, when
they are being send. TCP protocols contain information on how to assemble and disassemble packets and how they are verified as intact by the receiver.
IP protocols contain information on the packets destination. Routers direct packets to the bst possible path that would be the fastest.
2B
TCP protocols contain information on how to assemble and disassemble packets and how they are verified as intact by the receiver. IP protocols contain
information on the packets destination.
2C
An IP address consists of four numbers. In general, the first two numbers from the left identify the network the host resides on, and the remaining two numbers
identifies the host itself. There are three common classes for networks including:
Class A : Networks with many hosts
Class B : Networks with a medium number of hosts
Class C : Networks with a small numbe of hosts
Important Rules for Host Addressing
-Each host must be unique to the local network
-The host address numbers cannot all be 0
-The host address bits cannot all be 1s
2D
Hardware, software, addresses and/or network accounts
