Answer the following questions

1. There are 6 levels in a contemporary multilevel Computer. Explain with the aid of a diagram, what are they and how they relate to each other. (2)

2. Explain with the aid of a diagram the key components (structure) that make up a Von Neumann Machine (2).

3. What are the limits on how much a processors performance can be improved using pipelining?

4. Describe a Storage Area Network, and what are its advantages over Direct Attached Storage.

5. Explain, with the aid of a diagram, how the TCP/IP Internet network model uses peer-to-peer communication.

6. With the aid of a diagram, describe the layered structured of an operating system, and its primary function (2,1)

7. What are the 3 main security requirements of a modern Operating System?

8. Write a short note on informaiton protection and security, and main issues OS attempts to address