220-801 · Question #1141
A customer wants a computer for performing a single-threaded task as quickly as possible. Which of the following CPU characteristics is the MOST important?
The correct answer is A. Clock speed. Single-threaded tasks execute instructions sequentially on one core, so the speed at which that core processes instructions - the clock speed (measured in GHz) - is the primary factor. A higher clock speed means more instruction cycles per second, directly speeding up…
Question
Options
- AClock speed
- BHyperthreading
- CFan speed
- DNumber of cores
How the community answered
(55 responses)- A87% (48)
- B7% (4)
- C2% (1)
- D4% (2)
Explanation
Single-threaded tasks execute instructions sequentially on one core, so the speed at which that core processes instructions - the clock speed (measured in GHz) - is the primary factor. A higher clock speed means more instruction cycles per second, directly speeding up single-threaded workloads. Hyperthreading and additional cores help with parallel/multi-threaded workloads but provide no benefit when only one thread is in use. Fan speed affects cooling, not processing performance.
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