IT 505 American University Network and Database System Design Worksheet

Question: 1(A) : Visualizing Client/Server Computing and Middleware

Task:

a) Create a labeled diagram illustrating the client/server computing architecture, clearly depicting the roles and interactions between clients, servers, and middleware.

b) Write a brief explanation of how middleware facilitates communication between clients and servers in a client/server environment.

Question –B :Intranets, Extranets, and Service-Oriented Architecture (SOA)

Task:

a) Design a Venn diagram showcasing the similarities and differences between intranets, extranets, and service-oriented architecture (SOA).

b) Analyze how the adoption of SOA can enhance the functionality of an intranet or extranet in an organization. Provide at least two concrete examples for each case.

Question C: Cloud Computing Applications and Deployment Models

Task:

a) Develop a flowchart illustrating the decision-making process that a company should undergo when selecting the appropriate cloud deployment model (public, private, hybrid) for their specific needs.

b) Provide a short paragraph describing the primary advantages and potential challenges associated with each cloud deployment model.

Assessment:

The assignment will be assessed based on the following criteria:

1. Clarity and accuracy of the diagrams created for Question 1 and Question 2.
2. Thoroughness and depth of analysis in the explanations provided for Question 1, Question 2, and Question 3.
3. Demonstrated understanding of the concepts related to client/server computing, intranets, extranets, service-oriented architecture, and cloud computing.
4. Integration of relevant research and case studies to support arguments and findings.

Note: Students are encouraged to use any diagramming tool of their choice (e.g., Microsoft Visio, Lucidchart, draw.io) to create the diagrams. Additionally, all sources should be cited appropriately using the required citation style.

Format and Guidelines:

1. Use a clear and logical structure, including brief headings for each part.
2. Ensure proper citation and referencing of any sources used.
3. Demonstrate critical thinking by providing relevant examples and supporting evidence.
4. Use academic writing style and language appropriate for a graduate-level assignment.

Question:2 What three join types are included in the outer join classification, what is a cross join, and what is a recursive join?

Provide 2 examples on each Syntax

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