Assignment On Network Protocols And Sdlc

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Name of the Student
Student ID
ITC544
Assignment 2: Network protocols, SDLC and ITSM

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1. Explain why we need a 3-way handshake in TCP? Why not just 2-way?
A 3-way handshake is a process that is utilized in the network of TCP for the creation
of connection between a local host or local client and a server. It’s a three-step process which
needs both the client as well as the server for exchanging of the packets of acknowledgement
or ACK and SYN before actual communication of data (Abrahamsson et al. 2017). This is
required so that both the parties can synchronize their respective sequence segment numbers
which are utilized at the time of their transmission.
A 2-way handshake is not required as only one party will be allowed to establish an
ISN acknowledged by the other party indicating that only a single party can sent data but the
communication protocol TCP is bidirectional.
2. What is RAD? List an advantage and a disadvantage of using RAD.
RAD is referred to as rapid action development model which is also referred to as a
type incremental model. The components in this model are developed in a parallel way kike
those were the mini projects. The developments in this model are delivered, time-bound and
are ensemble into working prototypes which can quickly provide a customer anything to see
as well as utilize along with the providing of the feedbacks related with the delivery as well
as the requirements (Campanelli and Parreiras 2015). The various phases involved in the
RAD model are data modelling, business modelling, process modelling, application
generation along with turnover and testing.
An advantage of RAD is that it is increases the reutilization of the components and a
disadvantage of utilizing RAD is that it is dependent on a very strong team as well as the
performances of the individuals present in that particular team for the identification of all the
requirements related to business. Another disadvantage of the utilization of RADF is that it
always needs highly skilled and highly experienced software developers and designers.