Computers and Technology, 11.02.2020 01:32 kanysh
Consider a single-platter disk with the following parameters: rotation speed: 7200 rpm; number of tracks on one side ofplatter: 30,000; number of sectors per track: 600; seek time: one ms for every hundred tracks traversed. Let the diskreceive a request to access a random sector on a random track and assume the disk head starts at track 0.a. What is the average seek time?b. What is the average rotational latency?c. What is the transfer time for a sector?d. What is the total average time to satisfy a request?
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Why is it uncommon for users to perform searches directly in database tables? a.)users are discouraged from interacting directly with tables because they might confuse tables with spreadsheets. b.) users are discouraged from interacting directly with tables because this may result in unintended changes to source data. c.)users do not have the technical skills required to perform searches directly in database tables. d.)users do not have the permissions required to perform searches directly in database tables.
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Consider a single-platter disk with the following parameters: rotation speed: 7200 rpm; number of tr...
Mathematics, 24.01.2020 22:31
Mathematics, 24.01.2020 22:31
Mathematics, 24.01.2020 22:31
Mathematics, 24.01.2020 22:31