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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?
what is the need-to-know principle? why is it important for a protection system to adhere to this principle?
what is internal fragmentation?
Question: (a) The actual use and scope groups depend on the mode in which a domain is running. There are two domain modes in which you can run a Windows 2000 domain. List and d
Explain Processing Predefined Application Protocols Implementing and swift processing of predefined application protocols is sure to improve performance of server - side applic
Modern networks are not implemented as a single piece of software; that would render the task of dealing with multiple technologies and manufacturers virtually impossible. The solu
Describe Three major roles of operating systems in business computer systems
Define ‘LRU’ page replacement policy LRU is Least Recently Used page replacement policy.
What are the different directory structures? Explain each type. There are five dissimilar directory structures: 1. Single level directory 2. Two level directory
Question: (a) i. Consider Active Directory as a database, then for each type and new class of objects, what is created? ii. What is the purpose of the global catalog? ii
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