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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?
Explain bounded buffer and unbounded buffer. Here in a producer-consumer problem the producer process produces information that is consumed by a consumer process. At this time
What is Directory? The device directory or simply called as directory records information-such as name, location, size, and type for all files on that certain partition. The d
acyclic graph directories
Q. Why High level languages need Compiler? High level languages - illustrations are COBOL, FORTRAN, PL/I andALGOL - are processed by interpreters andcompilers. A compilers is a
Q. Define the difference among pre-emptive and non pre-emptive scheduling. Answer: Pre-emptive scheduling permits a process to be interrupted in the midst of its execution ta
Q. Multithreading is a commonly utilized programming technique. Illustrate three different ways that threads could be implemented. Describe how these ways compare to the Linux clon
Determine how Action implementing instruction’s meaning are a actually carried out Action implementing meaning of instruction are a actually carried out Instruction executio
what are the main advantages of multiprogramming
Write about directory structure?
FIFO page replacement This is the easiest page replacement algorithm. At this juncture the 1 st page entering is the 1 st to leave that is the oldest page leaves. To execute
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