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UGC-NET | UGC NET CS 2015 Dec – III | Question 5

A DMA controller transfers 32-bit words to memory using cycle stealing. The words are assembled from a device that transmits characters at a rate of 4800 characters per second. The CPU is fetching and executing instructions at an average rate of one million instructions per second. By how much will the CPU be slowed down because of the DMA transfer?

(A)

0.6%

(B)

0.12%

(C)

1.2%

(D)

2.5%

Answer

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