City Guilds Model Questions Vol1 2021 Information Technology Question 46
Practice objective / multiple choice question 46 from the 2021 City Guilds Model Questions Vol1 Information Technology examination.
A computer system runs three types of tasks: CPU‑bound tasks that occupy 30 % of the total execution time, I/O‑bound tasks that occupy 50 %, and memory‑bound tasks that occupy the remaining 20 %. The budget allows only one of the following upgrades: - Upgrade A: replace the processor, giving a \(2\times\) speed‑up for CPU‑bound tasks. - Upgrade B: replace the memory subsystem, giving a \(1.5\times\) speed‑up for memory‑bound tasks. Assuming the other task types are unaffected, which upgrade yields the greater overall system speed‑up? Give the overall speed‑up factor for the chosen upgrade, rounded to three decimal places.
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About This Question
This is City Guilds Model Questions Vol1 2021 Information Technology Question 46. It is one of the objective questions from the 2021 City Guilds Model Questions Vol1 Information Technology examination.
Difficulty level: Medium .
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