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Question 1:
(a) Describe what is meant by Client-server Computing?
(b) Distinguish between a server process and a client process.
(c) What are the basic characteristics of a client-server architecture?
(d) Distinguish among file servers, transaction servers, database servers and application servers.
Question 2:
(a) Using diagrams, describe the 1-tier, 2-tier, 3-tier and n-tier architectures.
(b) Describe the functions of a middleware. Give two examples of middleware.
Objectives 1. Login to UNIX system and logout 2. Learn features of the vi editor and to use online help (main pages). Gain experience using them to create a document
Difference between threads and processes 1. Thread is flow of implementation. Process is group of instruction which is alike to that of a program except which may be stopped an
Inverted page table In page table the page table has one entry for every page that the process is using. The operating system must translate this reference into a physical memo
Operating Systems have evolved tremendously in the last few decades. The first approach for building Operating Systems, taken during the 40s through early 60s, was to allow only on
What is Multiprogramming? Multiprogramming is the capability of am operating system to support multiple applications running concurrently. Multiprogramming simply means that an
Define Ageing Ageing is a method of enhancing the priority of process waiting in Queue for CPU allocation
Synchronization serves two purposes: 1) to ensure safety for updates on shared data (e.g. to avoid races conditions), and 2) to coordinate and order actions taken by threads (e.g.
What are the typical elements of a process image? User data: Modifiable part of user space. May have program data, user stack area, and programs that might be modified. User
list trhe various classification of model and types?
Take the binary number and divide it into groups of 4 bits starting from the right hand side , if no group of 4 exists fill out leading 0's, then convert each group of 4 to a hex n
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