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5 Disk, seek time, latency, sector, request Single-platter disk rotation speed: 7200 rpm number of tracks on one side of platter: 30,000 number of sectors per track: 600 seek time: 1 ms for every 100 tracks traversed Disk receives a request to access a random sector on a random track. assume the head starts at track 0.
a. What is the average seek time?b. avg. rotational latency?c. transfer time for a sector?d. total ave. time to satisfy a request?
The premise of Project 2 is to create your own shell. Your shell will be launchable from a terminal window and act similar to the existing shell.
Assume that word 0 is part of a hole and that the highest word in memory contains valid tries are needed in the page table if traditional(one-level) paging is used? how many page table entries are needed for two-level paging, with 10 bits in ea..
Explain the difference between internal fragmentation and external fragmentation. Which one occurs in paging system? Which one occurs in system using pure segmentation?
Assume two hosts A and B are connected via router R. A-R link has infinite bandwidth; A-R link has infinite bandwidth; draw curves for throughput, delay, and power, each as function of load.
Other user user threads belonging to the same process also be affected by the page fault (i.e., would they also have to wait for the faulting page to be brought into memory?) Explain.
Given that main memory is consisted of three page frames for public use and that seven-page program (with pages a, b, c, d, e, f, g) requests pages in the following order: a, b, a, c, d, a, e, f, g, c, b, g.
Discuss an application that would benefit from the use of barrier synchronization
Specify the order in which processes execute and determine the mean process turnaround time for each of the scheduling algorithms.
Using the internet as a source, compile a list of three known vulnerabilities for SQL Server on Windows operating systems and three vulnerabilities for Oracle on Unix.
Define the term context switch. Explain how context switching takes place. (use a diagram, with two processes)
What would you do to influence the procurement process for both platforms (hardware & OS, such as desktops, laptops, servers, etc.) and application software?
Consider a dynamic RAM that must be given a refresh cycle 64 times per ms. What percentage of the memory's total operating time must be given to refreshes?
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