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Question:
(a) (i) What is a microkernel? Describe the benefits of using microkernels.
(ii) How does a microkernel-based operating system differ from a traditional operating system?
(iii) Give examples of O.S that fall into the two above categories.
(b) (i) Many security researchers have assumed that criminals would focus their attacks on cryptanalysis. List at least 2 reasons why this is rarely true, explain their significance, and give an example that illustrates each.
(ii) Explain what is security policy and what are the corresponding mechanisms in the case of a multi-user operating system such as UNIX.
(c) (i) List the sequence of basic operations that make up a server process in the basic client-server model. (For the purposes of this question, you can ignore the need to establish a connection across a network, and assume clients are already connected to the server).
(ii) How does the client process implement the request/reply timing with this server process?
(d) What are the major issues that need to be addressed in designing a distributed operating system?
How the Nested Macro calls are expanded LIFO (Last in First out)
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Define the Global vs. local variables It is also important to discuss the scope of resources being granted to the application program. Variable scoping is defined as the acces
how does it works
Example 1. The diagram illustrating the data structures of in-memory VFS objects and on-disk objects and their relationships on slide 24 of the lecture notes OSD.4. This diagram i
Problem: a) Define the term ‘process' and what are the different constituents of a process. b) In the three-state process model, what does each of the three states signify?
Question: a) The following refers to optimization under Windows XP: i) Give five steps which could undertake to enhance overall system performance in a default Windows XP in
Explain Components of conflict phase of dispatch latency The conflict phase of dispatch latency has two components 1. Preemption of any process running in the kernel. 2.
Ask using a laballed diagram explaining the architecture of windows operating ststem
Long term scheduler calculates which processes are admitted to the machine for processing. It accepts the degree of multiprogramming. Once accepted, a job converts a process.
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