Answer to Question #300844 in Computer Networks for Tege

Question

6. a) what is the difference between a port address,a logical address,and a physical address?

  b) compare OSI model and TCP/IP protocol suit.

Answer 1

a) A port address refers to the IP address of a particular service on a system while logical address is a virtual address assigned by a software residing inside a system it usually generated by a CPU when a program is executing and the physical address refers to a specific location in memory unit of a system.

b) 1. In the OSI model the Physical layer and data link layer are separated into 2 while in TCP/IP the 2 layers are merged into one.

2.The OSI model is used as a reference model when designing a network while TCP/IP is the actual implementation of the OSI model.

3.OSI model has 7layers while TCP/IP has 5 layers.

4.OSI the session and presentation layers are present while in TCP/IP they are absent.