CSCI319 Assignment 3

This is the last assignment for CSCI319 and it is 15% of total marks. This assignment is quite easy and exactly the same type of questions as Assignment 1 & 2 - ya, short questions. Testing your knowledge and understanding. I will list the questions below.

1. Does NFS implement entry consistency? What makes you think so? (1 mark)
2. Explain how Coda solves read-write conflicts on a file that is shared between multiple readers and only a single writer. (1 mark)
3. What would be the main advantage of using the distributed server discussed in Chap 12 to implement a Web server cluster, in comparison to the way such clusters are organized as shown in Fig. 12-9. What is a disadvantage? (0.5 mark)
4. Why do persistent connections generally improve performance compared to non-persistent connections? (0.5 mark)
5. Consider a web site experiencing a flash crowd. What could be an appropriate measure to take in order to ensure that clients are still serviced well? (1.5 marks)
6. There are, in principle, three different techniques for redirecting clinets to servers: TCP handoff, DNS-based redirection and HTTP-based redirection. What are the main advantages and disadvantages of each technique? (3 marks)
7. When would you consider the implementation of security measures for the communication between two processes running on the same system? Explain your answer well. (2 marks)

Some questions are answered in the book, the others can be searched by Google. It should be easy. Next post, I will upload the ebook.

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