A device produces data at 20 MB/s, while a receiver consumes data at 12 MB/s. If production continues at these constant rates for 5 seconds without the receiver catching up, how much buffer capacity is required to accommodate the accumulated data?

Options

  • A. 20 MB
  • B. 40 MB
  • C. 60 MB
  • D. More than one of the above
  • E. None of the above

Correct Answer (Detailed Explanation is Below)

B. 40 MB

Detailed Explanation

Correct Answer: 40 MB.

Explanation: The buffer fills at the difference between the production and consumption rates.
Net accumulation rate: 20 - 12 = 8 MB/s.
Required capacity: 8 × 5 = 40 MB.
This assumes the buffer starts empty, the rates remain constant, and there is no additional overhead.
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BPSC TRE 4 operating system practice set 3

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