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In early Unix kernels the approach used to avoid race conditions in kernel code was to use a combination of the following two techniques: (i) non- preemptive scheduling of threads when they are running in privileged mode and (ii) interrupt disabling for those short sections of kernel code that manipulate data used by interrupt handlers. (a) Explain how and why these techniques, when used together, are sufficient to prevent race conditions in kernel code for a uni-processor operating system. (b) Explain why it is insufficient to use one or other technique in isolation. (c) Explain why the approach of using them together is still not sufficient for a shared memory multi-processor operating system, and describe a technique that would solve the problem in a shared memory multi- processor operating system.
Using wireshark note the IP address and TCP port number used by your client computer (source) to transfer the file to any FTP server?
Write about Multiplexing and Modulation techniques in detail with respect to Line of Sight Propagation. What is meant by Geo stationary orbit? Write down the advantages of Geo synchronous satellites?
Explain typical day in your life from time you wake up, until time you go to bed. Explain how science influences you and your routine throughout the day.
Study and explain copyright implications associated to Web site development. Write down minimum of 350 words explaining the implications of copyrights on usage of content on Web site.
What will be the average access time when both read and write are taken into consideration with write through strategy?
First do the register mapping and then any possible instruction reordering. How many machine registers are used? Has there been any pipeline improvement?
Review the car-caravan analogy
The hyperlink from the homepage to the other pages should be contained in an unordered list.
Translate the following function into MIPS assembly language
i have to do a project in one area of the diversity of living things we i choose the 5 kingdoms i need to include
1. Confidentiality, integrity, and availability are the three common security goals. Select at least three security vulnerabilities that could jeopardize and compromise a database. Classify each vulnerability with being technical, managerial,..
Write and explain briefly the three kinds of information security policy as described by NIST SP 800-14. Write and explain briefly four elements that must be present in Enterprise Information Security Policy.
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