Which component has direct memory access (DMA)? MCQ with Answer and Explanation

Which component has direct memory access (DMA)?
A. Hard disk controller
B. Monitor
C. Speaker
D. Keyboard
Answer: Option A
Solution (By JKSSB Mock Tests)
DMA allows devices to access memory without CPU.

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OLED burn-in is mitigated by:
A. Pixel shift and screen savers
B. Static images
C. No mitigation needed
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Correct Answer: Option A


Explanation:
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C. SSD
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Correct Answer: Option D


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Correct Answer: Option C


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