What is the OSI reference model?

1. What is the OSI reference model?

2. In a network based on the bus topology, the bus is a non-shareable resource for which the machines must compete in order to transmit

messages. How is deadlock (see the optional Section 3.4) controlled in this context?

3. List the four layers in the Internet software hierarchy and identify a task performed by each layer.

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How does a tax accountant use IS/IT in their job? ‌‌‌‍‍‌‍‌‌‍‍‌‍‍‌‌‌‍‍ Then explain how IS/IT may change those jobs in the future.

A ‌‌‌‍‍‌‍‌‌‍‍‌‍‍‌‌‌‍‍ s a student in this course you must be able to describe the evolving nature of IS/IT and their role in today’s organizations. Pick 2 non-technical jobs and….

Develop an Entity Relationship (ER) model to characterize the information requirements of business illustrates in the case study mentioned above. The diagram of your ER model must

Task 1: Database Modelling (Total marks: 7.5%)     Develop an Entity Relationship (ER) model to characterize the information requirements of business illustrates in the case study mentioned above. The….