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IN1011 Operating Systems (PRD2 A 2024/25)
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A process that requires 8.2 MB of space is swapped to a hard disk. The transfer rate to the disk is 108.4 MB/s and there is a further latency of 7.3 microseconds. Calculate the total Context Switch Swapping time (that is swap out and swap in) of this process. Write down your answer in milliseconds.
, and observe which products had the highest number of vulnerabilities. Select the top five products (i.e. highest number of vulnerabilities). If you cannot find this year, select any year and then edit the date in
the URL e.g.,
https://www.cvedetails.com/top-50-products.php?year=2022.( Whilst you are there, study other years. Is there a pattern on how things have changed over the years? Are there any products that you expected to be there but were not? Or the reverse?
A system with a First In First Out page replacement algorithm can store 3 pages in memory at any given time.
(first) 7,0,1,3,7,2 (last)
The diagram below illustrates the process, three time points have already been completed:
Complete the remaining pages with the incoming pages. Answer which pages are stored in the locations denoted "a?" and "b?". Write down your answer as a two digit response, e.g. if the pages were 8 and 9, write down 89 without spaces, commas or other symbols
The following image contains a listing of a unix directory with one of the attributes enclosed in a red box. Select the correct attribute from the options below.
Identify the correct permissions that are granted with the following command
A system with a First In First Out page replacement algorithm can store 3 pages in memory at any given time.
(first) 7,0,1,2,3,7 (last)
The diagram below illustrates the process, three time points have already been completed:
Complete the remaining pages with the incoming pages. Answer which pages are stored in the locations denoted "a?" and "b?". Write down your answer as a two digit response, e.g. if the pages were 8 and 9, write down 89 without spaces, commas or other symbols
Visit the Common Vulnerabilities and Exposures (CVE) website (https://www.cvedetails.com/top-50-products.php). Select the year 2002, and observe which products had the highest number of vulnerabilities. Select the top five products (i.e. highest number of vulnerabilities). If you cannot find this year, select any year and then edit the date in the URL e.g., https://www.cvedetails.com/top-50-products.php?year=2022.
(Whilst you are there, study other years. Is there a pattern on how things have changed over the years? Are there any products that you expected to be there but were not? Or the reverse?)