Networking and Software Design Patterns

MITS4002 1
MITS4002
By (Student Name)
(Class Name)
(Tutor’s Name)
(School Name)
(City)
(Date)

MITS4002 2
NETWORKING
Question one
Figure 1 below shows the OSI model layer while figure 2 shows the TCP/IP suite
Open System Interconnection model
Transfer Control Protocol/Internet Protocol Suite

MITS4002 3
Question two
To start with, the Transfer Control Protocol /IP protocol was developed before the Open
System Interconnection model. This means that the TCP/IP protocol suite doesn’t match exactly
as the Open System Interconnection model. The initial or the original Transfer Control
Protocol /Internet Protocol suite was first defined using only four layers which were the
application, host-to-host network, transport, and the internet. Nevertheless, network engineers
have put it that TCP/IP cab be compared to OSI model as host-to-host network layer is the same
as the combination of data link and the physical layers. In addition the internet layer is equivalent
to the application and network layers. The transport and the application layers carries the same
functions as the session, presentation and the application layers of the OSI model.
Hence;
TCP/IP contains five layers; 1st four layers provides internetworking, transport functions,
physical standards, and network interfaces. The 1st three layers of the OSI model are represented
by Application layer of TCP/IP (Black, 2013, p. 47).
Question 3
Network layer- Internet layer
User support – Application layer
Question 4: Data encapsulation
In respect to question to three, data encapsulation is said to be the process of taking data
from one protocol to another and then translating which is the translated into another protocol, so
that that the data can continue across the organization network