Assume that an organization$’$s employees have each been given a computer and a core application to perform their work. Each employee$’$s computer runs its own instance of the core application, which has the functions of both a client and a server. Files are not stored centrally on a dedicated file server in the organization$’$s network but are stored on the individual computers where they were created. When someone needs a file not found on their own computer, that is$,$ needs a file created by someone else, their application searches the network to find the desired resource and contacts the application running on the other person$’$s computer to retrieve the file. This and all other communication occurs by the employees$’$ computers directly contacting other employees$’$ computers.

The CTO is considering having the core application rewritten to use a different networking architecture. With this scenario in mind, address each of the topics below.

Topic $1$: Architecture Identification

Identify the networking application architecture used by the organization and explain the basic mechanics of how that architecture works, including how the four application functions would be divided.

Topic $2$: Switching to Client$-$Server

Identify and explain three issues the organization would need to address if it would like to switch from its current networking architecture to a two$-$tier, client$-$server architecture.

Topic $3$: Advantages and Disadvantages of Client$-$Server

Identify the advantages and disadvantages, for the organization, of switching from the organization$’$s current networking architecture to a client$-$server architecture.